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“Emergency discovery” of novel antimicrobials among
known drugs in response to new and re-emerging
infectious threats
A. Cherkasov
UBC / VGH Infectious Diseases
[email protected]
1. ‘Binary QSAR Models for ‘Antibiotic-likeness’
and ‘Metabolite-likeness’
2. Finding potential antibiotics among common
drugs, substances
3. Attacking essential proteins in emerging
and re-emerging pathogens: Prospectives, Protocols
1. ‘Binary QSAR Models for ‘Antibiotic-likeness’
and ‘Metabolite-likeness’
QSAR
GGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACGGCACTTCTAATTTGCATTCCCTACCGGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTAC
CCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCAGGCCTTGGTGCTTCCACATCTGTCCAAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCT GAGCAGCCACAACCTA
CTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCCTGCTTTTCAAGGCTGTATGTTTACATTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTG
GGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCACATTTGTATTTGTCATTAGTCAACCGGAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACT
CATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATGATCACACAGTCATACACGTTCTAACTCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAA
GATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGCTGATGATCCACATTTTCTAGCCCACTCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCT
TGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAATCCTAAAGCTCTGGGAGCTGGGTGTCAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTC
TTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAATCAGTGAACACACTTGATGGGAGTTTTCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCT
CAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCAGCTTTGGGAGCAATGTTGGATGAGTGAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGA
GTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGACGAGTCAGGAGCCCCTTCCAAGGGTGGACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGAC
CTAGGGCTAGGGGCATGTTGAATCTCAGCCTCGCCCACTGGCGCTGGACTTGGTACACAGGGTGGGGCAAAGTGGGTACTGGATCCTGATCATCCCTATCCCTGGGGTGTGGCTTCTTGCTGCACAGTCAGCTTCTAGTTC
TGTAGCCCCAGCTGCTCCTGCGGTGGAGGGAGCTACACATCAGGCTCTGACCCCCTCCAGGTGGGGCCTTCGCGTGAGGGGAGTCAGCACGCATCAGCAGCTGGGCCCAGGGAGTTGCCCCACTGAGCACTGCGGGCTGAC
CTGCTCCCAACCAGGGAGATGGAGCTTCCCCCTTGAGTCGGGCTGCTGAAGGGGGGTAGGGGATGGAAACAGTGCGTTTGCAGGAGTAAGGGTGCAGTTGGGTCCCTGCGAGAAAATGTCTCAGTTGTGGCAACTGATTGG
TGACCTGGGGGGCGTTTCTGAGCCCACAGTGCTGGCATCAGGACTCAGGTGTGAGGTGCCCCAGACCCTCCCCTTGCCAGTAATTAGCTGATGGCTCGGTGATGCCCAGGGTGAAGGAAGACTTGATTTTGGGAGGGGAGT
TCTCTCGTAATGACACTGAGGATGCCTTCAAGTTGGGCTTCTGGCATGTTCTGCCCTCGCTCCCCTTCTGTAGTCACCTTGGCCCTCGTGTTGCTGAGCTGTGTGTGGGAGCGGGAAGCGCGTCAGTGGGCGGAGGGAGCG
GGAAGCGCGTCAGTGGGCGGAGTATTTGAGAACATTTCACAAGCCGCTGTTGAGGTTCAGAATCAACCAGCAGATACAGAAACATATTTCGGAGCGTGGGGACCCTTGGGTGAGCTGCCACATGAAGCAGCCCCAGGACCT
CCCTGGCTCAAGGAGTGACAGCGAGTTTGTCTGAGGTGAGGGCACAGGCCTGGCGAAGCCTCGTGTGTGGGTGAGACCTGCCCGACCCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGC
AGAGTCAGGGAGACTCATGAGGCCGTTGAGGCCAGGGGCATAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACT
CCTAGCCATGGAGCTCCCATTGGTGGCAGCCAGTGCCACCATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACG
GCACTTCTAATTTGCATTCCCTACCGGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTACCCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCA
GGCCTTGGTGCTTCCACATCTGTCCAAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTACTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCC
TGCTTTTCAAGGCTGTATGTTTACATTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTGGGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCAC
ATTTGTATTTGTCATTAGTCAACCGGAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACTCATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATG
ATCACACAGTCATACACGTTCTAACTCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAAGATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGC
TGATGATCCACATTTTCTAGCCCACTCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCTTGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAA
TCCTAAAGCTCTGGGAGCTGGGTGTCAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTCTTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAAT
CAGTGAACACACTTGATGGGAGTTTTCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCTCAGTGTACATGCTCTGGGTCAGTA GGTGCCCTTGAGCCCA
GCTTTGGGAGCAATGTTGGATGAGTGAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGAGTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGAC
GAGTCAGGAGCCCCTTCCAAGGGTGGACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGACCTAGGGCTAGGGGCATGTTGAATCTCAGCCTCGCCCACTG
GCGCTGGACTTGGTACACAGGGTGGGGCAAAGTGGGTACTGGATCCTGATCATCCCTATCCCTGGGGTGTGGCTTCTTGCTGCACAGTCAGCTTCTAGTTCTGTAGCCCCAGCTGCTCCTGCGGTGGAGGGAGCTACACAT
CAGGCTCTGACCCCCTCCAGGTGGGGCCTTCGCGTGAGGGGAGTCAGCACGCATCAGCAGCTGGGCCCAGGGAGTTGCCCCACTGAGCACTGCGGGCTGACCTGCTCCCAACCAGGGAGATGGAGCTTCCCCCTTGAGTCG
GGCTGCTGAAGGGGGGTAGGGGATGGAAACAGTGCGTTTGCAGGAGTAAGGGTGCAGTTGGGTCCCTGCGAGAAAATGTCTCAGTTGTGGCAACTGATTGGTGACCTGGGGGGCGTTTCTGAGCCCACAGTGCTGGCATCA
GGACTCAGGTGTGAGGTGCCCCAGACCCTCCCCTTGCCAGTAATTAGCTGATGGCTCGGTGATGCCCAGGGTGAAGGAAGACTTGATTTTGGGAGGGGAGTTCTCTCGTAATGACACTGAGGATGCCTTCAAGTTGGGCTT
CTGGCATGTTCTGCCCTCGCTCCCCTTCTGTAGTCACCTTGGCCCTCGTGTTGCTGAGCTGTGTGTGGGAGCGGGAAGCGCGTCAGTGGGCGGAGGGAGCGGGAAGCGCGTCAGTGGGCGGAGTATTTGAGAACATTTCAC
AAGCCGCTGTTGAGGTTCAGAATCAACCAGCAGATACAGAAACATATTTCGGAGCGTGGGGACCCTTGGGTGAGCTGCCACATGAAGCAGCCCCAGGACCTCCCTGGCTCAAGGAGTGACAGCGAGTTTGTCTGAGGTGAG
GGCACAGGCCTGGCGAAGCCTCGTGTGTGGGTGAGACCTGCCCGACCCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGCAGAGTCAGGGAGACTCATGAGGCCGTTGAGGCCAGGGGCA
TAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACTCCTAGCCATGGAGCTCCCATTGGTGGCAGCCAGTGCCACC
ATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGCAGAGTCAGGGAGACTCATGAGGCCG
TTGAGGCCAGGGGCATAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACTCCTAGCCATGGAGCTCCCATTGGTG
GCAGCCAGTGCCACCATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACGGCACTTCTA ATTTGCATTCCCTACC
GGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTACCCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCAGGCCTTGGTGCTTCCACATCTGTCC
AAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTACTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCCTGCTTTTCAAGGCTGTATGTTTACA
TTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTGGGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCACATTTGTATTTGTCATTAGTCAACCG
GAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACTCATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATGATCACACAGTCATACACGTTCTAAC
TCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAAGATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGCTGATGATCCACATTTTCTAGCCCAC
TCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCTTGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAATCCTAAAGCTCTGGGAGCTGGGTGT
CAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTCTTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAATCAGTGAACACACTTGATGGGAGTTT
TCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCTCAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCAGCTTTGGGAGCAATGTTGGATGAGT
GAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGAGTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGACGAGTCAGGAGCCCCTTCCAAGGGTG
GACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGACCTAGGGCTAGGGGCATGTTGAA
quantitative structure-activity relationships
Molecular structure
gets translated into numbers
(descriptors)
Mathematical function
f ( Descriptors) ~ Activity
THE UNIVERSITY OF BRITISH COLUMBIA
MEDICINE INFECTIOUS DISEASES
Inductive descriptors
GGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACGGCACTTCTAATTTGCATTCCCTACCGGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTAC
CCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCAGGCCTTGGTGCTTCCACATCTGTCCAAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTA
CTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCCTGCTTTTCAAGGCTGTATGTTTACATTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTG
GGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCACATTTGTATTTGTCATTAGTCAACCGGAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACT
CATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATGATCACACAGTCATACACGTTCTAACTCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAA
GATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGCTGATGATCCACATTTTCTAGCCCACTCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCT
TGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAATCCTAAAGCTCTGGGAGCTGGGTGTCAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAG TATTCCATTGTAGCTC
TTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAATCAGTGAACACACTTGATGGGAGTTTTCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCT
CAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCAGCTTTGGGAGCAATGTTGGATGAGTGAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGA
GTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGACGAGTCAGGAGCCCCTTCCAAGGGTGGACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGAC
CTAGGGCTAGGGGCATGTTGAATCTCAGCCTCGCCCACTGGCGCTGGACTTGGTACACAGGGTGGGGCAAAGTGGGTACTGGATCCTGATCATCCCTATCCCTGGGGTGTGGCTTCTTGCTGCACAGTCAGCTTCTAGTTC
TGTAGCCCCAGCTGCTCCTGCGGTGGAGGGAGCTACACATCAGGCTCTGACCCCCTCCAGGTGGGGCCTTCGCGTGAGGGGAGTCAGCACGCATCAGCAGCTGGGCCCAGGGAGTTGCCCCACTGAGCACTGCGGGCTGAC
CTGCTCCCAACCAGGGAGATGGAGCTTCCCCCTTGAGTCGGGCTGCTGAAGGGGGGTAGGGGATGGAAACAGTGCGTTTGCAGGAGTAAGGGTGCAGTTGGGTCCCTGCGAGAAAATGTCTCAGTTGTGGCAACTGATTGG
TGACCTGGGGGGCGTTTCTGAGCCCACAGTGCTGGCATCAGGACTCAGGTGTGAGGTGCCCCAGACCCTCCCCTTGCCAGTAATTAGCTGATGGCTCGGTGATGCCCAGGGTGAAGGAAGACTTGATTTTGGGAGGGGAGT
TCTCTCGTAATGACACTGAGGATGCCTTCAAGTTGGGCTTCTGGCATGTTCTGCCCTCGCTCCCCTTCTGTAGTCACCTTGGCCCTCGTGTTGCTGAGCTGTGTGTGGGAGCGGGAAGCGCGTCAGTGGGCGGAGGGAGCG
GGAAGCGCGTCAGTGGGCGGAGTATTTGAGAACATTTCACAAGCCGCTGTTGAGGTTCAGAATCAACCAGCAGATACAGAAACATATTTCGGAGCGTGGGGACCCTTGGGTGAGCTGCCACATGAAGCAGCCCCAGGACCT
CCCTGGCTCAAGGAGTGACAGCGAGTTTGTCTGAGGTGAGGGCACAGGCCTGGCGAAGCCTCGTGTGTGGGTGAGACCTGCCCGACCCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGC
AGAGTCAGGGAGACTCATGAGGCCGTTGAGGCCAGGGGCATAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACT
CCTAGCCATGGAGCTCCCATTGGTGGCAGCCAGTGCCACCATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACG
GCACTTCTAATTTGCATTCCCTACCGGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTACCCTGGAAGGGCTCGCCCTCTGCGG AATTTCAGTTCATGCA
GGCCTTGGTGCTTCCACATCTGTCCAAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTACTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCC
TGCTTTTCAAGGCTGTATGTTTACATTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTGGGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCAC
ATTTGTATTTGTCATTAGTCAACCGGAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACTCATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATG
ATCACACAGTCATACACGTTCTAACTCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAAGATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGC
TGATGATCCACATTTTCTAGCCCACTCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCTTGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAA
TCCTAAAGCTCTGGGAGCTGGGTGTCAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTCTTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAAT
CAGTGAACACACTTGATGGGAGTTTTCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCTCAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCA
GCTTTGGGAGCAATGTTGGATGAGTGAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGAGTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGAC
GAGTCAGGAGCCCCTTCCAAGGGTGGACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGACCTAGGGCTAGGGGCATGTTGAATCTCAGCCTCGCCCACTG
GCGCTGGACTTGGTACACAGGGTGGGGCAAAGTGGGTACTGGATCCTGATCATCCCTATCCCTGGGGTGTGGCTTCTTGCTGCACAGTCAGCTTCTAGTTCTGTAGCCCCAGCTGCTCCTGCGGTGGAGGGAGCTACACAT
CAGGCTCTGACCCCCTCCAGGTGGGGCCTTCGCGTGAGGGGAGTCAGCACGCATCAGCAGCTGGGCCCAGGGAGTTGCCCCACTGAGCACTGCGGGCTGACCTGCTCCCAACCAGGGAGATGGAGCTTCCCCCTTGAGTCG
GGCTGCTGAAGGGGGGTAGGGGATGGAAACAGTGCGTTTGCAGGAGTAAGGGTGCAGTTGGGTCCCTGCGAGAAAATGTCTCAGTTGTGGCAACTGATTGGTGACCTGGGGGGCGTTTCTGAGCCCACAGTGCTGGCATCA
GGACTCAGGTGTGAGGTGCCCCAGACCCTCCCCTTGCCAGTAATTAGCTGATGGCTCGGTGATGCCCAGGGTGAAGGAAGACTTGATTTTGGGAGGGGAGTTCTCTCGTAATGACACTGAGGATG CCTTCAAGTTGGGCTT
CTGGCATGTTCTGCCCTCGCTCCCCTTCTGTAGTCACCTTGGCCCTCGTGTTGCTGAGCTGTGTGTGGGAGCGGGAAGCGCGTCAGTGGGCGGAGGGAGCGGGAAGCGCGTCAGTGGGCGGAGTATTTGAGAACATTTCAC
AAGCCGCTGTTGAGGTTCAGAATCAACCAGCAGATACAGAAACATATTTCGGAGCGTGGGGACCCTTGGGTGAGCTGCCACATGAAGCAGCCCCAGGACCTCCCTGGCTCAAGGAGTGACAGCGAGTTTGTCTGAGGTGAG
GGCACAGGCCTGGCGAAGCCTCGTGTGTGGGTGAGACCTGCCCGACCCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGCAGAGTCAGGGAGACTCATGAGGCCGTTGAGGCCAGGGGCA
TAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACTCCTAGCCATGGAGCTCCCATTGGTGGCAGCCAGTGCCACC
ATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGCAGAGTCAGGGAGACTCATGAGGCCG
TTGAGGCCAGGGGCATAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACTCCTAGCCATGGAGCTCCCATTGGTG
GCAGCCAGTGCCACCATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACGGCACTTCTAATTTGCATTCCCTACC
GGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTACCCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCAGGCCTTGGTGCTTCCACATCTGTCC
AAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTACTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCCTGCTTTTCAAGGCTGTATGTTTACA
TTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTGGGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCACATTTGTATTTGTCATTAGTCAACCG
GAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACTCATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATGATCACACAGTCATACACGTTCTAAC
TCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAAGATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGCTGATGATCC ACATTTTCTAGCCCAC
TCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCTTGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAATCCTAAAGCTCTGGGAGCTGGGTGT
CAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTCTTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAATCAGTGAACACACTTGATGGGAGTTT
TCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCTCAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCAGCTTTGGGAGCAATGTTGGATGAGT
GAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGAGTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGACGAGTCAGGAGCCCCTTCCAAGGGTG
GACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGACCTAGGGCTAGGGGCATGTTGAA
Ri2
  2
i  G , i  j ri  j
n
RsG  j
 G*  j  
 N0 1 j 
n
( i0   0j ) Ri2
iG ,i  j
ri2 j

N 1
 i0 ( Ri2  R 2j )
i j
ri 2 j

N 1
Ri2  R 2j
i j
ri 2 j

The relative area of frontal
Screening of a surface of
atom A by atom B
(shown as a green shadow) is
Sshadow RA2 RB2 RB2
 2 2  2
Satom
RArAB rAB
“Inductive ” QSAR Descriptors
Average Electronegativities of the Negatively/Positively Charged Atoms
Molecular (equalized) Electronegativity
Total Formal Charge
Average Atomic Hardness
Sum of Atomic Hardnesses
Average Negative/Positive Charges
Largest Positive Charge
Average Atomic Hardnesses of Negatively/Positively Charged Atoms
Hardness of the Most Positively Charged Atom
Largest Hardness among the Negatively/Positively Charged Atoms
Sum of Softnesses of Negatively Charged Atoms
Steric Effect on the Most Negatively Charged Atom
Most Negative Inductive Constant of an Atom in Molecule
Largest Positive Inductive Effect on an Atom in Molecule
The Smallest Steric Effect on a Atom in Molecule
Sum of all Negative Inductive Effects on Atoms in Molecule
…..
QSAR models for antibiotics, drugs and bacteria and human metabolites
A. Cherkasov. J Chem Inf Model, 46, 1214 (2006),
E. Karakoc et al Bioinformatics, 22, e243v (2006)
QSAR models for antimicrobial peptides
A. Cherkasov. Current Computer-Aided Drug Design, 1, 21 (2005)
H. Jenssen et al Chem Biol Drug Des. 70, 134 (2007)
A hybrid QSAR/Docking approach ‘Progressive docking’ has been developed
A. Cherkasov et al, J Med Chem. 49, 7466 (2006)
Various low-micromolar to nanomolar inhibitors developed with the help of ‘inductive’
QSAR solutions
A. Cherkasov et al, J Med Chem, 48, 3203 (2005)
A. Cherkasov et al J Chem Inf Model, 45, 1842 (2005)
QSAR model for pK constants of carboxylic acids and protonated amines
A. Cherkasov et al, J Phys Chem, 107, 9695 (2003)
Descriptors-derived system for protein charge calculation
A. Cherkasov. J Chem Inf Comp Sci, 43, 2039 (2003)
QSAR model for dipole moments
A. Cherkasov et al, J. Mol. Struct. Theochem, 497, 115 (2000)
QSAR models for oxidation energies of free radicals
A Cherkasov et al, J Chem Inf Comp Sci, 40, 1222 (2000), 39, 1057 (1999), 38, 1151 (1998)
QSAR models for Gas Basicity of Amines
A. Cherkasov et al, J Mol Graph Model, 17, 28 (1999)
Predictive model for inductive substituent constants.
A. Cherkasov et al, J Phys Org Chem 11, 437 (1998)
QSAR MODEL FOR ANTIBIOTICS
A mixture of known antibiotics and non-antibiotics
2/3 of all compounds for training
1/3 of all compounds for testing
Table 1Testing peptide classification performance. QSAR - predictions based on QSAR descriptors; AA - predictions based on amino-acid sequence only.
QSAR model for the training set
VALIDATION: How
the model performs on
test compounds
1
0.9
0.8
Antimicrobial
Bacterial Metabolites
Human Metabolites
Drugs
Druglikes
Mean normalized
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
5
10
15
QSAR Descriptors
20
25
30
GGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACGGCACTTCTAATTTGCATTCCCTACCGGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTAC
CCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCAGGCCTTGGTGCTTCCACATCTGTCCAAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTA
CTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCCTGCTTTTCAAGGCTGTATGTTTACATTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTG
GGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCACATTTGTATTTGTCATTAGTCAACCGGAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACT
CATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATGATCACACAGTCATACACGTTCTAACTCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAA
GATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGCTGATGATCCACATTTTCTAGCCCACTCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCT
TGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAATCCTAAAGCTCTGGGAGCTGGGTGTCAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAG TATTCCATTGTAGCTC
TTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAATCAGTGAACACACTTGATGGGAGTTTTCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCT
CAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCAGCTTTGGGAGCAATGTTGGATGAGTGAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGA
GTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGACGAGTCAGGAGCCCCTTCCAAGGGTGGACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGAC
CTAGGGCTAGGGGCATGTTGAATCTCAGCCTCGCCCACTGGCGCTGGACTTGGTACACAGGGTGGGGCAAAGTGGGTACTGGATCCTGATCATCCCTATCCCTGGGGTGTGGCTTCTTGCTGCACAGTCAGCTTCTAGTTC
TGTAGCCCCAGCTGCTCCTGCGGTGGAGGGAGCTACACATCAGGCTCTGACCCCCTCCAGGTGGGGCCTTCGCGTGAGGGGAGTCAGCACGCATCAGCAGCTGGGCCCAGGGAGTTGCCCCACTGAGCACTGCGGGCTGAC
CTGCTCCCAACCAGGGAGATGGAGCTTCCCCCTTGAGTCGGGCTGCTGAAGGGGGGTAGGGGATGGAAACAGTGCGTTTGCAGGAGTAAGGGTGCAGTTGGGTCCCTGCGAGAAAATGTCTCAGTTGTGGCAACTGATTGG
TGACCTGGGGGGCGTTTCTGAGCCCACAGTGCTGGCATCAGGACTCAGGTGTGAGGTGCCCCAGACCCTCCCCTTGCCAGTAATTAGCTGATGGCTCGGTGATGCCCAGGGTGAAGGAAGACTTGATTTTGGGAGGGGAGT
TCTCTCGTAATGACACTGAGGATGCCTTCAAGTTGGGCTTCTGGCATGTTCTGCCCTCGCTCCCCTTCTGTAGTCACCTTGGCCCTCGTGTTGCTGAGCTGTGTGTGGGAGCGGGAAGCGCGTCAGTGGGCGGAGGGAGCG
GGAAGCGCGTCAGTGGGCGGAGTATTTGAGAACATTTCACAAGCCGCTGTTGAGGTTCAGAATCAACCAGCAGATACAGAAACATATTTCGGAGCGTGGGGACCCTTGGGTGAGCTGCCACATGAAGCAGCCCCAGGACCT
CCCTGGCTCAAGGAGTGACAGCGAGTTTGTCTGAGGTGAGGGCACAGGCCTGGCGAAGCCTCGTGTGTGGGTGAGACCTGCCCGACCCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGC
AGAGTCAGGGAGACTCATGAGGCCGTTGAGGCCAGGGGCATAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACT
CCTAGCCATGGAGCTCCCATTGGTGGCAGCCAGTGCCACCATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACG
GCACTTCTAATTTGCATTCCCTACCGGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTACCCTGGAAGGGCTCGCCCTCTGCGG AATTTCAGTTCATGCA
GGCCTTGGTGCTTCCACATCTGTCCAAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTACTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCC
TGCTTTTCAAGGCTGTATGTTTACATTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTGGGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCAC
ATTTGTATTTGTCATTAGTCAACCGGAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACTCATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATG
ATCACACAGTCATACACGTTCTAACTCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAAGATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGC
TGATGATCCACATTTTCTAGCCCACTCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCTTGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAA
TCCTAAAGCTCTGGGAGCTGGGTGTCAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTCTTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAAT
CAGTGAACACACTTGATGGGAGTTTTCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCTCAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCA
GCTTTGGGAGCAATGTTGGATGAGTGAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGAGTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGAC
GAGTCAGGAGCCCCTTCCAAGGGTGGACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGACCTAGGGCTAGGGGCATGTTGAATCTCAGCCTCGCCCACTG
GCGCTGGACTTGGTACACAGGGTGGGGCAAAGTGGGTACTGGATCCTGATCATCCCTATCCCTGGGGTGTGGCTTCTTGCTGCACAGTCAGCTTCTAGTTCTGTAGCCCCAGCTGCTCCTGCGGTGGAGGGAGCTACACAT
CAGGCTCTGACCCCCTCCAGGTGGGGCCTTCGCGTGAGGGGAGTCAGCACGCATCAGCAGCTGGGCCCAGGGAGTTGCCCCACTGAGCACTGCGGGCTGACCTGCTCCCAACCAGGGAGATGGAGCTTCCCCCTTGAGTCG
GGCTGCTGAAGGGGGGTAGGGGATGGAAACAGTGCGTTTGCAGGAGTAAGGGTGCAGTTGGGTCCCTGCGAGAAAATGTCTCAGTTGTGGCAACTGATTGGTGACCTGGGGGGCGTTTCTGAGCCCACAGTGCTGGCATCA
GGACTCAGGTGTGAGGTGCCCCAGACCCTCCCCTTGCCAGTAATTAGCTGATGGCTCGGTGATGCCCAGGGTGAAGGAAGACTTGATTTTGGGAGGGGAGTTCTCTCGTAATGACACTGAGGATG CCTTCAAGTTGGGCTT
CTGGCATGTTCTGCCCTCGCTCCCCTTCTGTAGTCACCTTGGCCCTCGTGTTGCTGAGCTGTGTGTGGGAGCGGGAAGCGCGTCAGTGGGCGGAGGGAGCGGGAAGCGCGTCAGTGGGCGGAGTATTTGAGAACATTTCAC
AAGCCGCTGTTGAGGTTCAGAATCAACCAGCAGATACAGAAACATATTTCGGAGCGTGGGGACCCTTGGGTGAGCTGCCACATGAAGCAGCCCCAGGACCTCCCTGGCTCAAGGAGTGACAGCGAGTTTGTCTGAGGTGAG
GGCACAGGCCTGGCGAAGCCTCGTGTGTGGGTGAGACCTGCCCGACCCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGCAGAGTCAGGGAGACTCATGAGGCCGTTGAGGCCAGGGGCA
TAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACTCCTAGCCATGGAGCTCCCATTGGTGGCAGCCAGTGCCACC
ATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGCAGAGTCAGGGAGACTCATGAGGCCG
TTGAGGCCAGGGGCATAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACTCCTAGCCATGGAGCTCCCATTGGTG
GCAGCCAGTGCCACCATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACGGCACTTCTAATTTGCATTCCCTACC
GGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTACCCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCAGGCCTTGGTGCTTCCACATCTGTCC
AAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTACTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCCTGCTTTTCAAGGCTGTATGTTTACA
TTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTGGGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCACATTTGTATTTGTCATTAGTCAACCG
GAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACTCATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATGATCACACAGTCATACACGTTCTAAC
TCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAAGATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGCTGATGATCC ACATTTTCTAGCCCAC
TCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCTTGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAATCCTAAAGCTCTGGGAGCTGGGTGT
CAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTCTTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAATCAGTGAACACACTTGATGGGAGTTT
TCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCTCAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCAGCTTTGGGAGCAATGTTGGATGAGT
GAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGAGTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGACGAGTCAGGAGCCCCTTCCAAGGGTG
GACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGACCTAGGGCTAGGGGCATGTTGAA
A number of QSAR models have been elaborated to separate individual clusters within
the dataset of 958 human therapeutics, 519 antimicrobials, 1202 drug-like chemicals,
as well as 1102 human-, 551 bacterial-, 2351 plant- and 825 fungal metabolites.
Antimicrobials
from Drugs
Antimicrobials
from Drug-likes
Distinguishing
Antimicrobials
from all others
Distinguishing
Antimicrobials
QSAR model for
versus
Drugs Bacterial
versus
Drug- Metabolites
likes
Train
Test
Train
Test
Train
Test
Train
Test
Train
Test
T_P
327
130
332
140
294
124
270
89
360
139
T_N
631
248
841
342
1490
621
1486
644
792
347
F_P
49
33
7
14
32
20
17
14
39
26
F_N
33
35
30
23
66
41
108
58
48
19
SPEC
0.93
0.88
0.99
0.96
0.98
0.97
0.99
0.98
0.95
0.93
SENS
0.91
0.79
0.92
0.86
0.82
0.75
0.71
0.61
0.88
0.88
ACCU
R
0.92
0.85
0.97
0.93
0.95
0.92
0.93
0.91
0.93
0.92
PPV
0.87
0.80
0.98
0.91
0.90
0.86
0.94
0.86
0.90
0.84
NPV
0.95
0.88
0.97
0.94
0.96
0.94
0.93
0.92
0.94
0.95
THE UNIVERSITY OF BRITISH COLUMBIA
MEDICINE INFECTIOUS DISEASES
THE UNIVERSITY OF BRITISH COLUMBIA
MEDICINE INFECTIOUS DISEASES
Method
Validation
True
Posit.
TrueNegat
FalsePosit.
FalseNega
t
Spec.
Sens.
Accur
PPV
NPV
Antibacterials versus (Drugs + Drug-likes + Bacteria Metabolites + Human Metabolites)
kNN
LDA
MLR
ANN
Training 70%
269
2610
9
95
0.97
0.74
0.95
0.80
0.96
Testing 30%
117
1119
8
39
0.98
0.75
0.95
0.81
0.97
LOO
400
3727
9
120
0.97
0.77
0.95
0.80
0.97
Training 70%
364
0
2679
0
0.00
1.00
0.12
0.12
0.00
Testing 30%
156
0
1147
0
0.00
1.00
0.12
0.12
0.00
LOO
261
3751
75
259
0.98
0.50
0.92
0.78
0.94
Training 70%
194
564
2115
170
0.21
0.53
0.25
0.08
0.77
Testing 30%
61
1129
18
95
0.98
0.39
0.91
0.77
0.92
LOO
279
3726
100
241
0.97
0.54
0.92
0.74
0.94
Training 70%
294
2651
27
70
0.99
0.81
0.97
0.92
0.97
Testing 30%
129
1132
16
27
0.99
0.83
0.97
0.89
0.98
LOO
449
3821
5
71
0.99
0.86
0.98
0.99
0.98
Bacteria Metabolites versus (Drugs + Drug-likes + Antibacterials + Human Metabolites)
kNN
LDA
MLR
ANN
Training 70%
311
2537
112
83
0.96
0.79
0.94
074
0.97
Testing 30%
135
1091
44
33
0.96
0.80
0.94
0.75
0.97
LOO
455
3637
147
107
0.96
0.81
0.94
0.76
0.97
Training 70%
240
2587
62
154
0.98
0.61
0.93
0.79
0.94
Testing 30%
90
1088
47
78
0.96
0.54
0.90
0.66
0.93
LOO
336
3665
119
226
0.97
0.60
0.92
0.74
0.94
Training 70%
301
2525
124
93
0.95
0.76
0.93
0.71
0.96
Testing 30%
119
1073
62
49
0.95
0.71
0.91
0.66
0.96
LOO
406
3603
181
156
0.95
0.72
0.92
0.69
0.96
Training 70%
338
2597
52
55
0.98
0.86
0.96
0.87
0.98
Testing 30%
159
1076
59
10
0.95
0.94
0.95
0.73
0.99
LOO
534
3780
4
28
0.99
0.95
0.99
0.99
THE UNIVERSITY OF BRITISH COLUMBIA
MEDICINE INFECTIOUS DISEASES
0.99
Retrival Percentage
Retrival Percentage
Retrieval of Antibiotic Compounds
Retreival of Human Methabolites
GGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACGGCACTTCTAATTTGCATTCCCTACCGGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTAC
100
CCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCAGGCCTTGGTGCTTCCACATCTGTCCAAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTA
100
90
CTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCCTGCTTTTCAAGGCTGTATGTTTACATTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTG
90
R=0.1
GGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCACATTTGTATTTGTCATTAGTCAACCGGAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACT
80
R=0.15
CATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATGATCACACAGTCATACACGTTCTAACTCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAA
80
R=0.2
GATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGCTGATGATCCACATTTTCTAGCCCACTCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCT
70
R=0.1 Random
R=0.1
TGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAATCCTAAAGCTCTGGGAGCTGGGTGTCAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAG
TATTCCATTGTAGCTC
70
R=0.15 Random
R=0.15
TTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAATCAGTGAACACACTTGATGGGAGTTTTCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCT
60
R=0.2 Random
60
CAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCAGCTTTGGGAGCAATGTTGGATGAGTGAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGA
R=0.2
50
GTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGACGAGTCAGGAGCCCCTTCCAAGGGTGGACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGAC
R=0.1 Random
50
CTAGGGCTAGGGGCATGTTGAATCTCAGCCTCGCCCACTGGCGCTGGACTTGGTACACAGGGTGGGGCAAAGTGGGTACTGGATCCTGATCATCCCTATCCCTGGGGTGTGGCTTCTTGCTGCACAGTCAGCTTCTAGTTC
40
R=0.15 Random
TGTAGCCCCAGCTGCTCCTGCGGTGGAGGGAGCTACACATCAGGCTCTGACCCCCTCCAGGTGGGGCCTTCGCGTGAGGGGAGTCAGCACGCATCAGCAGCTGGGCCCAGGGAGTTGCCCCACTGAGCACTGCGGGCTGAC
40
CTGCTCCCAACCAGGGAGATGGAGCTTCCCCCTTGAGTCGGGCTGCTGAAGGGGGGTAGGGGATGGAAACAGTGCGTTTGCAGGAGTAAGGGTGCAGTTGGGTCCCTGCGAGAAAATGTCTCAGTTGTGGCAACTGATTGG
R=0.20 Random
30
30
TGACCTGGGGGGCGTTTCTGAGCCCACAGTGCTGGCATCAGGACTCAGGTGTGAGGTGCCCCAGACCCTCCCCTTGCCAGTAATTAGCTGATGGCTCGGTGATGCCCAGGGTGAAGGAAGACTTGATTTTGGGAGGGGAGT
20
TCTCTCGTAATGACACTGAGGATGCCTTCAAGTTGGGCTTCTGGCATGTTCTGCCCTCGCTCCCCTTCTGTAGTCACCTTGGCCCTCGTGTTGCTGAGCTGTGTGTGGGAGCGGGAAGCGCGTCAGTGGGCGGAGGGAGCG
20
GGAAGCGCGTCAGTGGGCGGAGTATTTGAGAACATTTCACAAGCCGCTGTTGAGGTTCAGAATCAACCAGCAGATACAGAAACATATTTCGGAGCGTGGGGACCCTTGGGTGAGCTGCCACATGAAGCAGCCCCAGGACCT
10
CCCTGGCTCAAGGAGTGACAGCGAGTTTGTCTGAGGTGAGGGCACAGGCCTGGCGAAGCCTCGTGTGTGGGTGAGACCTGCCCGACCCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGC
10
AGAGTCAGGGAGACTCATGAGGCCGTTGAGGCCAGGGGCATAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACT
0
CCTAGCCATGGAGCTCCCATTGGTGGCAGCCAGTGCCACCATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACG
0
0
100
200
300
400
500
600
700
GCACTTCTAATTTGCATTCCCTACCGGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTACCCTGGAAGGGCTCGCCCTCTGCGG
AATTTCAGTTCATGCA
0
100
200
300
400
500
600
700
Query number
GGCCTTGGTGCTTCCACATCTGTCCAAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTACTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCC
Query points
TGCTTTTCAAGGCTGTATGTTTACATTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTGGGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCAC
ATTTGTATTTGTCATTAGTCAACCGGAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACTCATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATG
ATCACACAGTCATACACGTTCTAACTCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAAGATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGC
TGATGATCCACATTTTCTAGCCCACTCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCTTGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAA
TCCTAAAGCTCTGGGAGCTGGGTGTCAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTCTTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAAT
CAGTGAACACACTTGATGGGAGTTTTCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCTCAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCA
GCTTTGGGAGCAATGTTGGATGAGTGAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGAGTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGAC
GAGTCAGGAGCCCCTTCCAAGGGTGGACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGACCTAGGGCTAGGGGCATGTTGAATCTCAGCCTCGCCCACTG
GCGCTGGACTTGGTACACAGGGTGGGGCAAAGTGGGTACTGGATCCTGATCATCCCTATCCCTGGGGTGTGGCTTCTTGCTGCACAGTCAGCTTCTAGTTCTGTAGCCCCAGCTGCTCCTGCGGTGGAGGGAGCTACACAT
CAGGCTCTGACCCCCTCCAGGTGGGGCCTTCGCGTGAGGGGAGTCAGCACGCATCAGCAGCTGGGCCCAGGGAGTTGCCCCACTGAGCACTGCGGGCTGACCTGCTCCCAACCAGGGAGATGGAGCTTCCCCCTTGAGTCG
GGCTGCTGAAGGGGGGTAGGGGATGGAAACAGTGCGTTTGCAGGAGTAAGGGTGCAGTTGGGTCCCTGCGAGAAAATGTCTCAGTTGTGGCAACTGATTGGTGACCTGGGGGGCGTTTCTGAGCCCACAGTGCTGGCATCA
GGACTCAGGTGTGAGGTGCCCCAGACCCTCCCCTTGCCAGTAATTAGCTGATGGCTCGGTGATGCCCAGGGTGAAGGAAGACTTGATTTTGGGAGGGGAGTTCTCTCGTAATGACACTGAGGATG CCTTCAAGTTGGGCTT
CTGGCATGTTCTGCCCTCGCTCCCCTTCTGTAGTCACCTTGGCCCTCGTGTTGCTGAGCTGTGTGTGGGAGCGGGAAGCGCGTCAGTGGGCGGAGGGAGCGGGAAGCGCGTCAGTGGGCGGAGTATTTGAGAACATTTCAC
AAGCCGCTGTTGAGGTTCAGAATCAACCAGCAGATACAGAAACATATTTCGGAGCGTGGGGACCCTTGGGTGAGCTGCCACATGAAGCAGCCCCAGGACCTCCCTGGCTCAAGGAGTGACAGCGAGTTTGTCTGAGGTGAG
GGCACAGGCCTGGCGAAGCCTCGTGTGTGGGTGAGACCTGCCCGACCCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGCAGAGTCAGGGAGACTCATGAGGCCGTTGAGGCCAGGGGCA
TAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACTCCTAGCCATGGAGCTCCCATTGGTGGCAGCCAGTGCCACC
ATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGCAGAGTCAGGGAGACTCATGAGGCCG
TTGAGGCCAGGGGCATAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACTCCTAGCCATGGAGCTCCCATTGGTG
GCAGCCAGTGCCACCATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACGGCACTTCTAATTTGCATTCCCTACC
GGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTACCCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCAGGCCTTGGTGCTTCCACATCTGTCC
AAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTACTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCCTGCTTTTCAAGGCTGTATGTTTACA
TTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTGGGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCACATTTGTATTTGTCATTAGTCAACCG
GAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACTCATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATGATCACACAGTCATACACGTTCTAAC
TCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAAGATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGCTGATGATCC ACATTTTCTAGCCCAC
TCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCTTGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAATCCTAAAGCTCTGGGAGCTGGGTGT
CAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTCTTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAATCAGTGAACACACTTGATGGGAGTTT
TCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCTCAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCAGCTTTGGGAGCAATGTTGGATGAGT
GAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGAGTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGACGAGTCAGGAGCCCCTTCCAAGGGTG
GACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGACCTAGGGCTAGGGGCATGTTGAA
THE UNIVERSITY OF BRITISH COLUMBIA
MEDICINE INFECTIOUS DISEASES
Separation of various classes of substances in the
chemical space
General drugs
Bacterial metabolites
Inactive
Chemicals
Antibacterials
2. Finding potential antibiotics among common
drugs, substances
Bad Bugs Need Drugs: IDSA, March 2006
Antimicrobial Availability Task Force
Widespread prevalence of MDR bacteria in hospitals
Few drugs in a pipeline, Urgent need for R&D
Experts Fear Increase in Drug-resistant
Infectious Here: Globe and Mail, March 2006
MRSA, a treatment-resistant form of
bacteria that spreads through direct
contact, is called a greater threat to public
health than SARS or bird flu. The Boston
Globe, August 21, 2006
Resistance mechanisms are very effective
(specific toward the existing antibiotics)
Resistance mechanisms are very effective
(specific toward the existing antibiotics)
Lateral gene transfer…
Resistance mechanisms are very effective
(specific toward the existing antibiotics)
Lateral gene transfer…
Active transport…
Resistance mechanisms are very effective
(specific toward the existing antibiotics)
Lateral gene transfer…
Active transport…
Resistant mutations…
Resistance mechanisms are very effective
(specific toward the existing antibiotics)
Lateral gene transfer…
Active transport…
Resistant mutations…
BUT ‘off-target’ bacterial inhibition by non-antibiotics
might still work…
Resistance mechanisms are very effective
(specific toward the existing antibiotics)
Lateral gene transfer…
Active transport…
Resistant mutations…
BUT ‘off-target’ bacterial inhibition by non-antibiotics
might still work… NEED TO FIND SUCH AB-LIKE DRUGS
GGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACGGCACTTCTAATTTGCATTCCCTACCGGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTAC
CCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCAGGCCTTGGTGCTTCCACATCTGTCCAAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCT GAGCAGCCACAACCTA
CTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCCTGCTTTTCAAGGCTGTATGTTTACATTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTG
GGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCACATTTGTATTTGTCATTAGTCAACCGGAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACT
CATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATGATCACACAGTCATACACGTTCTAACTCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAA
GATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGCTGATGATCCACATTTTCTAGCCCACTCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCT
TGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAATCCTAAAGCTCTGGGAGCTGGGTGTCAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTC
TTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAATCAGTGAACACACTTGATGGGAGTTTTCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCT
CAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCAGCTTTGGGAGCAATGTTGGATGAGTGAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGA
GTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGACGAGTCAGGAGCCCCTTCCAAGGGTGGACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGAC
CTAGGGCTAGGGGCATGTTGAATCTCAGCCTCGCCCACTGGCGCTGGACTTGGTACACAGGGTGGGGCAAAGTGGGTACTGGATCCTGATCATCCCTATCCCTGGGGTGTGGCTTCTTGCTGCACAGTCAGCTTCTAGTTC
TGTAGCCCCAGCTGCTCCTGCGGTGGAGGGAGCTACACATCAGGCTCTGACCCCCTCCAGGTGGGGCCTTCGCGTGAGGGGAGTCAGCACGCATCAGCAGCTGGGCCCAGGGAGTTGCCCCACTGAGCACTGCGGGCTGAC
CTGCTCCCAACCAGGGAGATGGAGCTTCCCCCTTGAGTCGGGCTGCTGAAGGGGGGTAGGGGATGGAAACAGTGCGTTTGCAGGAGTAAGGGTGCAGTTGGGTCCCTGCGAGAAAATGTCTCAGTTGTGGCAACTGATTGG
TGACCTGGGGGGCGTTTCTGAGCCCACAGTGCTGGCATCAGGACTCAGGTGTGAGGTGCCCCAGACCCTCCCCTTGCCAGTAATTAGCTGATGGCTCGGTGATGCCCAGGGTGAAGGAAGACTTGATTTTGGGAGGGGAGT
TCTCTCGTAATGACACTGAGGATGCCTTCAAGTTGGGCTTCTGGCATGTTCTGCCCTCGCTCCCCTTCTGTAGTCACCTTGGCCCTCGTGTTGCTGAGCTGTGTGTGGGAGCGGGAAGCGCGTCAGTGGGCGGAGGGAGCG
GGAAGCGCGTCAGTGGGCGGAGTATTTGAGAACATTTCACAAGCCGCTGTTGAGGTTCAGAATCAACCAGCAGATACAGAAACATATTTCGGAGCGTGGGGACCCTTGGGTGAGCTGCCACATGAAGCAGCCCCAGGACCT
CCCTGGCTCAAGGAGTGACAGCGAGTTTGTCTGAGGTGAGGGCACAGGCCTGGCGAAGCCTCGTGTGTGGGTGAGACCTGCCCGACCCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGC
AGAGTCAGGGAGACTCATGAGGCCGTTGAGGCCAGGGGCATAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACT
CCTAGCCATGGAGCTCCCATTGGTGGCAGCCAGTGCCACCATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACG
GCACTTCTAATTTGCATTCCCTACCGGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTACCCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCA
GGCCTTGGTGCTTCCACATCTGTCCAAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTACTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCC
TGCTTTTCAAGGCTGTATGTTTACATTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTGGGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCAC
ATTTGTATTTGTCATTAGTCAACCGGAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACTCATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATG
ATCACACAGTCATACACGTTCTAACTCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAAGATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGC
TGATGATCCACATTTTCTAGCCCACTCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCTTGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAA
TCCTAAAGCTCTGGGAGCTGGGTGTCAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTCTTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAAT
CAGTGAACACACTTGATGGGAGTTTTCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCTCAGTGTACATGCTCTGGGTCAGTA GGTGCCCTTGAGCCCA
GCTTTGGGAGCAATGTTGGATGAGTGAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGAGTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGAC
GAGTCAGGAGCCCCTTCCAAGGGTGGACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGACCTAGGGCTAGGGGCATGTTGAATCTCAGCCTCGCCCACTG
GCGCTGGACTTGGTACACAGGGTGGGGCAAAGTGGGTACTGGATCCTGATCATCCCTATCCCTGGGGTGTGGCTTCTTGCTGCACAGTCAGCTTCTAGTTCTGTAGCCCCAGCTGCTCCTGCGGTGGAGGGAGCTACACAT
CAGGCTCTGACCCCCTCCAGGTGGGGCCTTCGCGTGAGGGGAGTCAGCACGCATCAGCAGCTGGGCCCAGGGAGTTGCCCCACTGAGCACTGCGGGCTGACCTGCTCCCAACCAGGGAGATGGAGCTTCCCCCTTGAGTCG
GGCTGCTGAAGGGGGGTAGGGGATGGAAACAGTGCGTTTGCAGGAGTAAGGGTGCAGTTGGGTCCCTGCGAGAAAATGTCTCAGTTGTGGCAACTGATTGGTGACCTGGGGGGCGTTTCTGAGCCCACAGTGCTGGCATCA
GGACTCAGGTGTGAGGTGCCCCAGACCCTCCCCTTGCCAGTAATTAGCTGATGGCTCGGTGATGCCCAGGGTGAAGGAAGACTTGATTTTGGGAGGGGAGTTCTCTCGTAATGACACTGAGGATGCCTTCAAGTTGGGCTT
CTGGCATGTTCTGCCCTCGCTCCCCTTCTGTAGTCACCTTGGCCCTCGTGTTGCTGAGCTGTGTGTGGGAGCGGGAAGCGCGTCAGTGGGCGGAGGGAGCGGGAAGCGCGTCAGTGGGCGGAGTATTTGAGAACATTTCAC
AAGCCGCTGTTGAGGTTCAGAATCAACCAGCAGATACAGAAACATATTTCGGAGCGTGGGGACCCTTGGGTGAGCTGCCACATGAAGCAGCCCCAGGACCTCCCTGGCTCAAGGAGTGACAGCGAGTTTGTCTGAGGTGAG
GGCACAGGCCTGGCGAAGCCTCGTGTGTGGGTGAGACCTGCCCGACCCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGCAGAGTCAGGGAGACTCATGAGGCCGTTGAGGCCAGGGGCA
TAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACTCCTAGCCATGGAGCTCCCATTGGTGGCAGCCAGTGCCACC
ATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGCAGAGTCAGGGAGACTCATGAGGCCG
TTGAGGCCAGGGGCATAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACTCCTAGCCATGGAGCTCCCATTGGTG
GCAGCCAGTGCCACCATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACGGCACTTCTA ATTTGCATTCCCTACC
GGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTACCCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCAGGCCTTGGTGCTTCCACATCTGTCC
AAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTACTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCCTGCTTTTCAAGGCTGTATGTTTACA
TTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTGGGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCACATTTGTATTTGTCATTAGTCAACCG
GAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACTCATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATGATCACACAGTCATACACGTTCTAAC
TCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAAGATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGCTGATGATCCACATTTTCTAGCCCAC
TCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCTTGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAATCCTAAAGCTCTGGGAGCTGGGTGT
CAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTCTTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAATCAGTGAACACACTTGATGGGAGTTT
TCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCTCAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCAGCTTTGGGAGCAATGTTGGATGAGT
GAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGAGTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGACGAGTCAGGAGCCCCTTCCAAGGGTG
GACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGACCTAGGGCTAGGGGCATGTTGAA
THE UNIVERSITY OF BRITISH COLUMBIA
MEDICINE INFECTIOUS DISEASES
GGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACGGCACTTCTAATTTGCATTCCCTACCGGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTAC
CCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCAGGCCTTGGTGCTTCCACATCTGTCCAAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTA
CTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCCTGCTTTTCAAGGCTGTATGTTTACATTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTG
GGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCACATTTGTATTTGTCATTAGTCAACCGGAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACT
CATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATGATCACACAGTCATACACGTTCTAACTCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAA
GATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGCTGATGATCCACATTTTCTAGCCCACTCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCT
TGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAATCCTAAAGCTCTGGGAGCTGGGTGTCAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTC
TTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAATCAGTGAACACACTTGATGGGAGTTTTCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCT
CAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCAGCTTTGGGAGCAATGTTGGATGAGTGAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGA
GTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGACGAGTCAGGAGCCCCTTCCAAGGGTGGACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGAC
CTAGGGCTAGGGGCATGTTGAATCTCAGCCTCGCCCACTGGCGCTGGACTTGGTACACAGGGTGGGGCAAAGTGGGTACTGGATCCTGATCATCCCTATCCCTGGGGTGTGGCTTCTTGCTGCAC AGTCAGCTTCTAGTTC
TGTAGCCCCAGCTGCTCCTGCGGTGGAGGGAGCTACACATCAGGCTCTGACCCCCTCCAGGTGGGGCCTTCGCGTGAGGGGAGTCAGCACGCATCAGCAGCTGGGCCCAGGGAGTTGCCCCACTGAGCACTGCGGGCTGAC
OH
O
OH
O
CTGCTCCCAACCAGGGAGATGGAGCTTCCCCCTTGAGTCGGGCTGCTGAAGGGGGGTAGGGGATGGAAACAGTGCGTTTGCAGGAGTAAGGGTGCAGTTGGGTCCCTGCGAGAAAATGTCTCAGTTGTGGCAACTGATTGG
TGACCTGGGGGGCGTTTCTGAGCCCACAGTGCTGGCATCAGGACTCAGGTGTGAGGTGCCCCAGACCCTCCCCTTGCCAGTAATTAGCTGATGGCTCGGTGATGCCCAGGGTGAAGGAAGACTTGATTTTGGGAGGGGAGT
O
O
TCTCTCGTAATGACACTGAGGATGCCTTCAAGTTGGGCTTCTGGCATGTTCTGCCCTCGCTCCCCTTCTGTAGTCACCTTGGCCCTCGTGTTGCTGAGCTGTGTGTGGGAGCGGGAAGCGCGTCAGTGGGCGGAGGGAGCG
GGAAGCGCGTCAGTGGGCGGAGTATTTGAGAACATTTCACAAGCCGCTGTTGAGGTTCAGAATCAACCAGCAGATACAGAAACATATTTCGGAGCGTGGGGACCCTTGGGTGAGCTGCCACATGAAGCAGCCCCAGGACCT
O
O
O
O
CCCTGGCTCAAGGAGTGACAGCGAGTTTGTCTGAGGTGAGGGCACAGGCCTGGCGAAGCCTCGTGTGTGGGTGAGACCTGCCCGACCCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGC
AGAGTCAGGGAGACTCATGAGGCCGTTGAGGCCAGGGGCATAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACT
CCTAGCCATGGAGCTCCCATTGGTGGCAGCCAGTGCCACCATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACG
GCACTTCTAATTTGCATTCCCTACCGGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTACCCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCA
GGCCTTGGTGCTTCCACATCTGTCCAAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTACTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCC
TGCTTTTCAAGGCTGTATGTTTACATTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTGGGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCAC
ATTTGTATTTGTCATTAGTCAACCGGAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACTCATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATG
O
O
ATCACACAGTCATACACGTTCTAACTCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAAGATGAGGCCTGAAGTTACCAGGGT
CTCTGTTTGCTGATGC
OH
O
O
TGATGATCCACATTTTCTAGCCCACTCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCTTGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAA
TCCTAAAGCTCTGGGAGCTGGGTGTCAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTCTTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAAT
OH
O
OH
CAGTGAACACACTTGATGGGAGTTTTCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCTCAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCA
O
OH
O
GCTTTGGGAGCAATGTTGGATGAGTGAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGAGTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGAC
O
GAGTCAGGAGCCCCTTCCAAGGGTGGACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGACCTAGGGCTAGGGGCATGTTGAATCTCAGCCTCGCCCACTG
O
OH
GCGCTGGACTTGGTACACAGGGTGGGGCAAAGTGGGTACTGGATCCTGATCATCCCTATCCCTGGGGTGTGGCTTCTTGCTGCACAGTCAGCTTCTAGTTCTGTAGCCCCAGCTGCTCCTGCGGTGGAGGGAGCTACACAT
OH
O
CAGGCTCTGACCCCCTCCAGGTGGGGCCTTCGCGTGAGGGGAGTCAGCACGCATCAGCAGCTGGGCCCAGGGAGTTGCCCCACTGAGCACTGCGGGCTGACCTGCTCCCAACCAGGGAGATGGAGCTTCCCCCTTGAGTCG
OH
O
OH
OH
GGCTGCTGAAGGGGGGTAGGGGATGGAAACAGTGCGTTTGCAGGAGTAAGGGTGCAGTTGGGTCCCTGCGAGAAAATGTCTCAGTTGTGGCAACTGATTGGTGACCTGGGGGGCGTTTCTGAGCCCACAGTGCTGGCATCA
O
O
O
GGACTCAGGTGTGAGGTGCCCCAGACCCTCCCCTTGCCAGTAATTAGCTGATGGCTCGGTGATGCCCAGGGTGAAGGAAGACTTGATTTTGGGAGGGGAGTTCTCTCGTAATGACACTGAGGATGCCTTCAAGTTGGGCTT
O
O
OH OH O
CTGGCATGTTCTGCCCTCGCTCCCCTTCTGTAGTCACCTTGGCCCTCGTGTTGCTGAGCTGTGTGTGGGAGCGGGAAGCGCGTCAGTGGGCGGAGGGAGCGGGAAGCGCGTCAGTGGGCGGAGTATTTGAGAACATTTCAC
O
O
O
O
O
OH OH O
AAGCCGCTGTTGAGGTTCAGAATCAACCAGCAGATACAGAAACATATTTCGGAGCGTGGGGACCCTTGGGTGAGCTGCCACATGAAGCAGCCCCAGGACCTCCCTGGCTCAAGGAGTGACAGCGAGTTTGTCTGAGGTGAG
O
O
O
GGCACAGGCCTGGCGAAGCCTCGTGTGTGGGTGAGACCTGCCCGACCCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGCAGAGTCAGGGAGACTCATGAGGCCGTTGAGGCCAGGGGCA
O
O
TAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACTCCTAGCCATGGAGCTCCCATTGGT GGCAGCCAGTGCCACC
O
O
O
OH
ATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGCAGAGTCAGGGAGACTCATGAGGCCG
O
O
TTGAGGCCAGGGGCATAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACTCCTAGCCATGGAGCTCCCATTGGTG
OH
GCAGCCAGTGCCACCATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACGGCACTTCTAATTTGCATTCCCTACC
GGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTACCCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCAGGCCTTGGTGCTTCCACATCTGTCC
AAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTACTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCCTGCTTTTCAAGGCTGTATGTTTACA
TTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTGGGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCACATTTGTATTTGTCATTAGTCAACCG
OH
GAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACTCATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATGATCACACAGTCATACACGTTCTAAC
OH
OH
TCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAAGATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGCTGATGATCCACATTTTCTAGCCCAC
OH
TCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCTTGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAATCCTAAAGCTCTGGGAGCTGGGTGT
CAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTCTTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAATCAGTGAACACACTTGATGGGAGTTT
O
O
TCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCTCAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCAGCTTTGGGAGCAATGTTGGATGAGT
OH
OH
GAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGAGTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGACGAGTCAGGAGCCCCTTCCAAGGGTG
GACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGACCTAGGGCTAGGGGCATGTTGAA
MERCK Database scaning
Lead compound
Merck
annotation
BM
L
scor
e
Antilipemic
0.71
Antibioti
clikeness
(30-10-2
ANN)
0.56
Antineoplasti
c
Cytostatic
agent
0.72
0.99
Analgesic;
Antiinflamat
ory
0.74
0.66
Lovastatin
NP-007587
Olivomycin A
Gentisic acid
Metabolite analogue
NP-009248
NP-001423
THE UNIVERSITY OF BRITISH COLUMBIA
MEDICINE INFECTIOUS DISEASES
GGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACGGCACTTCTAATTTGCATTCCCTACCGGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTAC
CCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCAGGCCTTGGTGCTTCCACATCTGTCCAAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTA
CTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCCTGCTTTTCAAGGCTGTATGTTTACATTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTG
GGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCACATTTGTATTTGTCATTAGTCAACCGGAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACT
CATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATGATCACACAGTCATACACGTTCTAACTCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAA
GATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGCTGATGATCCACATTTTCTAGCCCACTCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCT
TGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAATCCTAAAGCTCTGGGAGCTGGGTGTCAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTC
TTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAATCAGTGAACACACTTGATGGGAGTTTTCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCT
CAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCAGCTTTGGGAGCAATGTTGGATGAGTGAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGA
GTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGACGAGTCAGGAGCCCCTTCCAAGGGTGGACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGAC
CTAGGGCTAGGGGCATGTTGAATCTCAGCCTCGCCCACTGGCGCTGGACTTGGTACACAGGGTGGGGCAAAGTGGGTACTGGATCCTGATCATCCCTATCCCTGGGGTGTGGCTTCTTGCTGCAC AGTCAGCTTCTAGTTC
TGTAGCCCCAGCTGCTCCTGCGGTGGAGGGAGCTACACATCAGGCTCTGACCCCCTCCAGGTGGGGCCTTCGCGTGAGGGGAGTCAGCACGCATCAGCAGCTGGGCCCAGGGAGTTGCCCCACTGAGCACTGCGGGCTGAC
OH
O
OH
O
CTGCTCCCAACCAGGGAGATGGAGCTTCCCCCTTGAGTCGGGCTGCTGAAGGGGGGTAGGGGATGGAAACAGTGCGTTTGCAGGAGTAAGGGTGCAGTTGGGTCCCTGCGAGAAAATGTCTCAGTTGTGGCAACTGATTGG
TGACCTGGGGGGCGTTTCTGAGCCCACAGTGCTGGCATCAGGACTCAGGTGTGAGGTGCCCCAGACCCTCCCCTTGCCAGTAATTAGCTGATGGCTCGGTGATGCCCAGGGTGAAGGAAGACTTGATTTTGGGAGGGGAGT
O
O
TCTCTCGTAATGACACTGAGGATGCCTTCAAGTTGGGCTTCTGGCATGTTCTGCCCTCGCTCCCCTTCTGTAGTCACCTTGGCCCTCGTGTTGCTGAGCTGTGTGTGGGAGCGGGAAGCGCGTCAGTGGGCGGAGGGAGCG
GGAAGCGCGTCAGTGGGCGGAGTATTTGAGAACATTTCACAAGCCGCTGTTGAGGTTCAGAATCAACCAGCAGATACAGAAACATATTTCGGAGCGTGGGGACCCTTGGGTGAGCTGCCACATGAAGCAGCCCCAGGACCT
O
O
O
O
CCCTGGCTCAAGGAGTGACAGCGAGTTTGTCTGAGGTGAGGGCACAGGCCTGGCGAAGCCTCGTGTGTGGGTGAGACCTGCCCGACCCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGC
AGAGTCAGGGAGACTCATGAGGCCGTTGAGGCCAGGGGCATAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACT
CCTAGCCATGGAGCTCCCATTGGTGGCAGCCAGTGCCACCATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACG
GCACTTCTAATTTGCATTCCCTACCGGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTACCCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCA
GGCCTTGGTGCTTCCACATCTGTCCAAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTACTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCC
TGCTTTTCAAGGCTGTATGTTTACATTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTGGGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCAC
ATTTGTATTTGTCATTAGTCAACCGGAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACTCATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATG
O
O
ATCACACAGTCATACACGTTCTAACTCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAAGATGAGGCCTGAAGTTACCAGGGT
CTCTGTTTGCTGATGC
OH
O
O
TGATGATCCACATTTTCTAGCCCACTCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCTTGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAA
TCCTAAAGCTCTGGGAGCTGGGTGTCAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTCTTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAAT
OH
O
OH
CAGTGAACACACTTGATGGGAGTTTTCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCTCAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCA
O
OH
O
GCTTTGGGAGCAATGTTGGATGAGTGAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGAGTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGAC
O
GAGTCAGGAGCCCCTTCCAAGGGTGGACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGACCTAGGGCTAGGGGCATGTTGAATCTCAGCCTCGCCCACTG
O
OH
GCGCTGGACTTGGTACACAGGGTGGGGCAAAGTGGGTACTGGATCCTGATCATCCCTATCCCTGGGGTGTGGCTTCTTGCTGCACAGTCAGCTTCTAGTTCTGTAGCCCCAGCTGCTCCTGCGGTGGAGGGAGCTACACAT
OH
O
CAGGCTCTGACCCCCTCCAGGTGGGGCCTTCGCGTGAGGGGAGTCAGCACGCATCAGCAGCTGGGCCCAGGGAGTTGCCCCACTGAGCACTGCGGGCTGACCTGCTCCCAACCAGGGAGATGGAGCTTCCCCCTTGAGTCG
OH
O
OH
OH
GGCTGCTGAAGGGGGGTAGGGGATGGAAACAGTGCGTTTGCAGGAGTAAGGGTGCAGTTGGGTCCCTGCGAGAAAATGTCTCAGTTGTGGCAACTGATTGGTGACCTGGGGGGCGTTTCTGAGCCCACAGTGCTGGCATCA
O
O
O
GGACTCAGGTGTGAGGTGCCCCAGACCCTCCCCTTGCCAGTAATTAGCTGATGGCTCGGTGATGCCCAGGGTGAAGGAAGACTTGATTTTGGGAGGGGAGTTCTCTCGTAATGACACTGAGGATGCCTTCAAGTTGGGCTT
O
O
OH OH O
CTGGCATGTTCTGCCCTCGCTCCCCTTCTGTAGTCACCTTGGCCCTCGTGTTGCTGAGCTGTGTGTGGGAGCGGGAAGCGCGTCAGTGGGCGGAGGGAGCGGGAAGCGCGTCAGTGGGCGGAGTATTTGAGAACATTTCAC
O
O
O
O
O
OH OH O
AAGCCGCTGTTGAGGTTCAGAATCAACCAGCAGATACAGAAACATATTTCGGAGCGTGGGGACCCTTGGGTGAGCTGCCACATGAAGCAGCCCCAGGACCTCCCTGGCTCAAGGAGTGACAGCGAGTTTGTCTGAGGTGAG
O
O
O
GGCACAGGCCTGGCGAAGCCTCGTGTGTGGGTGAGACCTGCCCGACCCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGCAGAGTCAGGGAGACTCATGAGGCCGTTGAGGCCAGGGGCA
O
O
TAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACTCCTAGCCATGGAGCTCCCATTGGT GGCAGCCAGTGCCACC
O
O
O
OH
ATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGCAGAGTCAGGGAGACTCATGAGGCCG
O
O
TTGAGGCCAGGGGCATAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACTCCTAGCCATGGAGCTCCCATTGGTG
OH
GCAGCCAGTGCCACCATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACGGCACTTCTAATTTGCATTCCCTACC
GGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTACCCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCAGGCCTTGGTGCTTCCACATCTGTCC
AAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTACTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCCTGCTTTTCAAGGCTGTATGTTTACA
TTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTGGGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCACATTTGTATTTGTCATTAGTCAACCG
OH
GAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACTCATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATGATCACACAGTCATACACGTTCTAAC
OH
OH
TCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAAGATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGCTGATGATCCACATTTTCTAGCCCAC
OH
TCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCTTGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAATCCTAAAGCTCTGGGAGCTGGGTGT
CAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTCTTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAATCAGTGAACACACTTGATGGGAGTTT
O
O
TCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCTCAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCAGCTTTGGGAGCAATGTTGGATGAGT
OH
OH
GAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGAGTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGACGAGTCAGGAGCCCCTTCCAAGGGTG
GACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGACCTAGGGCTAGGGGCATGTTGAA
MERCK Database scaning
Lead compound
Merck
annotation
BM
L
scor
e
Antilipemic
0.71
Antibioti
clikeness
(30-10-2
ANN)
0.56
Metabolite analogue
CONFIRMED
Lovastatin
NP-007587
Antineoplasti
c
Cytostatic
agent
0.72
Analgesic;
Antiinflamat
ory
0.74
0.99
CONFIRMED
Olivomycin A
Gentisic acid
NP-009248
0.66
NP-001423
CONFIRMED
THE UNIVERSITY OF BRITISH COLUMBIA
MEDICINE INFECTIOUS DISEASES
3. Attacking essential proteins in emerging
and re-emerging pathogens: Prospectives, Protocols
IN SILICO
EXPERIMENT
Bacterial genome
1000 bate proteins
from Salmonella
and S. aureus
MRSA to be
expressed and
tagged
“Hubs” of bacterial proteinprotein interaction networks
POOL OF NOVEL DRUG TARGETS
Bioinformatics
Target
Identification,
Aims 1 and 2
Human genome
“Creation of
antibiotic-likeness”
models
Aim 3
Pullout experiment
Protein-protein
interaction data
(MASS SPEC)
Reconstruction of
protein-protein
interaction network
(experimenatal +
tentative)
“ANTIBIOTIC-LIKE” RANKING
OF
ELECTRONIC COLLECTIONS
OF UNTESTED COMPOUNDS
‘Mimickers’ proteins
INDEL containing
essential proteins
TARGET-BASED
DRUG DESIGN
Known
antimicrobial
compounds
GGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACGGCACTTCTAATTTGCATTCCCTACCGGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTAC
CCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCAGGCCTTGGTGCTTCCACATCTGTCCAAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTA
CTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCCTGCTTTTCAAGGCTGTATGTTTACATTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTG
GGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCACATTTGTATTTGTCATTAGTCAACCGGAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACT
CATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATGATCACACAGTCATACACGTTCTAACTCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAA
GATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGCTGATGATCCACATTTTCTAGCCCACTCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCT
TGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAATCCTAAAGCTCTGGGAGCTGGGTGTCAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAG TATTCCATTGTAGCTC
TTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAATCAGTGAACACACTTGATGGGAGTTTTCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCT
CAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCAGCTTTGGGAGCAATGTTGGATGAGTGAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGA
GTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGACGAGTCAGGAGCCCCTTCCAAGGGTGGACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGAC
CTAGGGCTAGGGGCATGTTGAATCTCAGCCTCGCCCACTGGCGCTGGACTTGGTACACAGGGTGGGGCAAAGTGGGTACTGGATCCTGATCATCCCTATCCCTGGGGTGTGGCTTCTTGCTGCACAGTCAGCTTCTAGTTC
TGTAGCCCCAGCTGCTCCTGCGGTGGAGGGAGCTACACATCAGGCTCTGACCCCCTCCAGGTGGGGCCTTCGCGTGAGGGGAGTCAGCACGCATCAGCAGCTGGGCCCAGGGAGTTGCCCCACTGAGCACTGCGGGCTGAC
CTGCTCCCAACCAGGGAGATGGAGCTTCCCCCTTGAGTCGGGCTGCTGAAGGGGGGTAGGGGATGGAAACAGTGCGTTTGCAGGAGTAAGGGTGCAGTTGGGTCCCTGCGAGAAAATGTCTCAGTTGTGGCAACTGATTGG
TGACCTGGGGGGCGTTTCTGAGCCCACAGTGCTGGCATCAGGACTCAGGTGTGAGGTGCCCCAGACCCTCCCCTTGCCAGTAATTAGCTGATGGCTCGGTGATGCCCAGGGTGAAGGAAGACTTGATTTTGGGAGGGGAGT
TCTCTCGTAATGACACTGAGGATGCCTTCAAGTTGGGCTTCTGGCATGTTCTGCCCTCGCTCCCCTTCTGTAGTCACCTTGGCCCTCGTGTTGCTGAGCTGTGTGTGGGAGCGGGAAGCGCGTCAGTGGGCGGAGGGAGCG
GGAAGCGCGTCAGTGGGCGGAGTATTTGAGAACATTTCACAAGCCGCTGTTGAGGTTCAGAATCAACCAGCAGATACAGAAACATATTTCGGAGCGTGGGGACCCTTGGGTGAGCTGCCACATGAAGCAGCCCCAGGACCT
CCCTGGCTCAAGGAGTGACAGCGAGTTTGTCTGAGGTGAGGGCACAGGCCTGGCGAAGCCTCGTGTGTGGGTGAGACCTGCCCGACCCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGC
AGAGTCAGGGAGACTCATGAGGCCGTTGAGGCCAGGGGCATAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACT
CCTAGCCATGGAGCTCCCATTGGTGGCAGCCAGTGCCACCATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACG
GCACTTCTAATTTGCATTCCCTACCGGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTACCCTGGAAGGGCTCGCCCTCTGCGG AATTTCAGTTCATGCA
GGCCTTGGTGCTTCCACATCTGTCCAAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTACTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCC
TGCTTTTCAAGGCTGTATGTTTACATTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTGGGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCAC
ATTTGTATTTGTCATTAGTCAACCGGAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACTCATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATG
ATCACACAGTCATACACGTTCTAACTCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAAGATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGC
TGATGATCCACATTTTCTAGCCCACTCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCTTGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAA
TCCTAAAGCTCTGGGAGCTGGGTGTCAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTCTTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAAT
CAGTGAACACACTTGATGGGAGTTTTCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCTCAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCA
GCTTTGGGAGCAATGTTGGATGAGTGAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGAGTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGAC
GAGTCAGGAGCCCCTTCCAAGGGTGGACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGACCTAGGGCTAGGGGCATGTTGAATCTCAGCCTCGCCCACTG
GCGCTGGACTTGGTACACAGGGTGGGGCAAAGTGGGTACTGGATCCTGATCATCCCTATCCCTGGGGTGTGGCTTCTTGCTGCACAGTCAGCTTCTAGTTCTGTAGCCCCAGCTGCTCCTGCGGTGGAGGGAGCTACACAT
CAGGCTCTGACCCCCTCCAGGTGGGGCCTTCGCGTGAGGGGAGTCAGCACGCATCAGCAGCTGGGCCCAGGGAGTTGCCCCACTGAGCACTGCGGGCTGACCTGCTCCCAACCAGGGAGATGGAGCTTCCCCCTTGAGTCG
GGCTGCTGAAGGGGGGTAGGGGATGGAAACAGTGCGTTTGCAGGAGTAAGGGTGCAGTTGGGTCCCTGCGAGAAAATGTCTCAGTTGTGGCAACTGATTGGTGACCTGGGGGGCGTTTCTGAGCCCACAGTGCTGGCATCA
GGACTCAGGTGTGAGGTGCCCCAGACCCTCCCCTTGCCAGTAATTAGCTGATGGCTCGGTGATGCCCAGGGTGAAGGAAGACTTGATTTTGGGAGGGGAGTTCTCTCGTAATGACACTGAGGATG CCTTCAAGTTGGGCTT
CTGGCATGTTCTGCCCTCGCTCCCCTTCTGTAGTCACCTTGGCCCTCGTGTTGCTGAGCTGTGTGTGGGAGCGGGAAGCGCGTCAGTGGGCGGAGGGAGCGGGAAGCGCGTCAGTGGGCGGAGTATTTGAGAACATTTCAC
AAGCCGCTGTTGAGGTTCAGAATCAACCAGCAGATACAGAAACATATTTCGGAGCGTGGGGACCCTTGGGTGAGCTGCCACATGAAGCAGCCCCAGGACCTCCCTGGCTCAAGGAGTGACAGCGAGTTTGTCTGAGGTGAG
GGCACAGGCCTGGCGAAGCCTCGTGTGTGGGTGAGACCTGCCCGACCCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGCAGAGTCAGGGAGACTCATGAGGCCGTTGAGGCCAGGGGCA
TAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACTCCTAGCCATGGAGCTCCCATTGGTGGCAGCCAGTGCCACC
ATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGCCAGTGCCTTACCCGAGGAGCTACTGGCCCAGTGGGGGAGGCATTCAGGTGGGCAGAGTCAGGGAGACTCATGAGGCCG
TTGAGGCCAGGGGCATAGAGCTGGCCAAGGAGCCATGGCTCACTAACGTGTTGTATGGGGCTCCTTCCCTTCAGGTCCAGGCTCCTGCGTGAAGTGATGCTCCTCTTTGCCTTACTCCTAGCCATGGAGCTCCCATTGGTG
GCAGCCAGTGCCACCATCGCGCTCAGTGTAAGTATCATTCCCTCTCACTGTCCTGGAGAGGACGAGAATTCCACCTGGAGATTCTGGGCCACTTTGGTTCCCCATGAGCCAAGACGGCACTTCTAATTTGCATTCCCTACC
GGAGTCCCTGTCTGTAGCCAGCCTGGCTTTCAGCTGGTGCCCAAAGTGACAAATGTATCTGCAATGACAAAGGTACCCTGGAAGGGCTCGCCCTCTGCGGAATTTCAGTTCATGCAGGCCTTGGTGCTTCCACATCTGTCC
AAGGGCCTTTCAAATGTGACTTTTAACTCTGTGGATTGATTTGCCCGGTTGTCACATTCTGAGCAGCCACAACCTACTGCATCCCATGTAGAAGTGGAAGTGACCTGATTTTTTCCTGCTTTTCAAGGCTGTATGTTTACA
TTTGCCTCCAATCATTCCTATGGGAATTCCTTGGGAGTCTAACTTGGAGATTTTGTTTCTTCTGCCTTTGCTCCTGGGGGCTTAATCACTTCTGTGCCTCTGGTTATCTGTGGCACATTTGTATTTGTCATTAGTCAACCG
GAGACTCGGGGTCTGAGTGGAGGGTATGTCCCCCTCCAGTGATGGTTTCTGTTGGCTTCCCAGGGTGAGGATGACTCATGACCACTTGCAAGTGGTTTTTGTGTCTGGGGTTTATGATCACACAGTCATACACGTTCTAAC
TCCAGACTGACTGTTGAGAAAGCCTCTGGGTAAGGGAATTCCTGGGAAACACACTGTTTTCATGCATCCTCTGGAAGATGAGGCCTGAAGTTACCAGGGTCTCTGTTTGCTGATGCTGATGATCC ACATTTTCTAGCCCAC
TCTGCTTCTCTGACACCTTTAGTCTTGAGGATCCATGNTCTGTGAAGGAATCCAAGCTCTCATTTCGCACTCACCTTGGCCCTGGCTCTGTCTCCAGGACCTCTTCTACTACAAAATCCTAAAGCTCTGGGAGCTGGGTGT
CAACCTGTGCCCGAGGAAATCATACAGTTACTGTGGACTTTCCAGTTTGCTGTCTTCTAGTATTCCATTGTAGCTCTTGGGTATTTTCCCATCCACCCCAAGATCCAGCTGGAAATCAGTGAACACACTTGATGGGAGTTT
TCCTGCATGTGCTCTGGGCATTGACAGTAGAAGGGTGTTCAGAATGTCTGCTGTGCCCTCATGGAGGAAGAGNGCTCAGTGTACATGCTCTGGGTCAGTAGGTGCCCTTGAGCCCAGCTTTGGGAGCAATGTTGGATGAGT
Jeong, H., Mason, S. P., Barabasi, A. L., & Oltvai, Z. N. (2001). Lethality and centrality in protein networks. Nature, 411, 41-42.
GAAGGAGGGATCCAGGGCAAAGCAGGCACGACAGAGTGGAGACGGCGCTGCTGGCTCTCAGGGGAATGGGCATGGAGTGGGTAGGAGATCCACCTAAGGAGGCTGGCTGGCTGGACGAGTCAGGAGCCCCTTCCAAGGGTG
GACACTGACAGGCCCCCAGTCTTGGTCTCCTGCATGCCAGAGGTACCAGCCCATCTTTTTTCCTAAACTTGATGACCTAGGGCTAGGGGCATGTTGAA
PINs
In most protein interaction networks (PINs), there the majority of proteins
participate in few interactions while the vast number of interactions occur
through few essential ‘HUB’ proteins.
PINs are resistant to
random attack, but very
vulnerable when it comes
to ‘intelligent’ removal of
the hubs
IN SILICO
EXPERIMENT
Bacterial genome
1000 bate proteins
from Salmonella
and S. aureus
MRSA to be
expressed and
tagged
“Hubs” of bacterial proteinprotein interaction networks
POOL OF NOVEL DRUG TARGETS
Bioinformatics
Target
Identification,
Aims 1 and 2
Human genome
“Creation of
antibiotic-likeness”
models
Aim 3
Pullout experiment
Protein-protein
interaction data
(MASS SPEC)
Reconstruction of
protein-protein
interaction network
(experimenatal +
tentative)
“ANTIBIOTIC-LIKE” RANKING
OF
ELECTRONIC COLLECTIONS
OF UNTESTED COMPOUNDS
‘Mimickers’ proteins
INDEL containing
essential proteins
TARGET-BASED
DRUG DESIGN
Known
antimicrobial
compounds
Acknowledgements:
Canadian Institute of Health Research (CIHR)
UBC/VHHSC
Genome Canada; Genome BC
“Emergency discovery” of novel antimicrobials among
known drugs in response to new and re-emerging
infectious threats
A. Cherkasov
UBC / VGH Infectious Diseases
[email protected]
Approved DRUGS re-profiled into:
“FIRST-LINE DEFENCE” Antibiotics
Tropical- and other 3rd world Anti-infectives
Orphan therapeutics