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Joined up ontologies: incorporating the Gene Ontology into the UMLS The Gene Ontology (GO) Controlled vocabulary for describing molecular biology hierarchical multiple parentage allowed defined terms Structure of GO (Created using the tool GenNav, developed at NLM) The ontologies What does it do? What processes is it involved in? Where does it act? gene product The ontologies What does it do? molecular function What processes is it involved in? Where does it act? gene product The ontologies What does it do? molecular function What processes is it involved in? biological process Where does it act? gene product The ontologies What does it do? molecular function What processes is it involved in? biological process Where does it act? gene product cellular component Gene annotation: assigning GO terms to gene products Genes or gene products GO terms “linked” to gene products Gene products annotated to all 3 ontologies May be linked to more than one term in each ontology nucleus regulation of transcription ATP dependent helicase DNA binding Queries across databases fly rat nuclease signal transducer mouse DNA binding helicase regulation of transcription membrane osmosensory signaling pathway yeast cytoplasm toxin catabolism DNA binding nucleus mitotic cell cycle nucleus Find me all gene products with ‘DNA binding activity’… Associating with different levels of ontology (Created using the tool GenNav, developed at NLM) GO and other systems Useful to equate GO with other systems Mappings files References in GO e.g. ec2go as dbxrefs e.g. BioCyc References in other systems e.g. BRENDA (in process) UMLS Metathesaurus GO into UMLS Unified Medical Language System Long-term project at NLM Three parts: specialist lexicon; sematic network; Metathesaurus Metathesaurus interrelates biomedical vocabularies Includes ~60 vocabularies including SNOMED and MeSH. Inserting GO into UMLS inversion insertion converting GO to correct format for UMLS inserting GO using matching algorithms editing all concepts containing GO term reviewed by hand 7.34 % Statistics CSP2002 (Computer Retrieval of Information on Scientific Projects Thesaurus) 11.05 % SNMI98 (Systemized Nomenclature of Human and Veterinary Medicine) SNOMED CRISP GO MeSH 19.74 % MSH2003_2002_08_14 (Medical Subject Headings) % of GO in sources with other concepts, by source Potential applications Mining abstracts using GO terms: DNA helicase ; GO:0003678 UMLS GO <-> MeSH MeSH term Status of GO into UMLS Molecular function ontology already inserted Hope to insert other two ontologies by April Release GO with UMLS by end of year www.geneontology.org •FlyBase & Berkeley Drosophila Genome Project •Saccharomyces Genome Database • PomBase (Sanger Institute) • Rat Genome Database • Genome Knowledge Base (CSHL) • The Institute for Genomic Research • Compugen, Inc •The Arabidopsis Information Resource •WormBase •DictyBase •Mouse Genome Informatics •Swiss-Prot/TrEMBL/InterPro •Pathogen Sequencing Unit (Sanger Institute) •National Library of Medicine •Alexa McCray •Stuart Nelson •Bill Hole •Oak Ridge Institute for Science and Education •National Library of Medicine •U. S. Department of Energy The Gene Ontology Consortium is supported by an R01 grant from the National Human Genome Research Institute (NHGRI) [grant HG02273]. SGD is supported by a P41, National Resources, grant from the NHGRI [grant HG01315]; MGD by a P41 from the NHGRI [grant HG00330]; GXD by the National Institute of Child Health and Human Development [grant HD33745]; FlyBase by a P41 from the NHGRI [grant HG00739] and by the Medical Research Council, London. TAIR is supported by the National Science Foundation [grant DBI-9978564]. WormBase is supported by a P41, National Resources, grant from the NHGRI [grant HG02223]; RGD is supported by an R01 grant from the NHLBI [grant HL64541]; DictyBase is supported by an R01 grant from the NIGMS [grant GM064426].