Download DNA, RNA, Protein Sequences as Strings of Characters.

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DNA, RNA, Protein Sequences as Strings of Characters.
Much bioinformatics analysis is concerned with searching and comparing the sequences of DNA
or proteins.
DNA sequences are strings of 4 letters: ATGC. The letters represent different bases of DNA.
RNA sequences are strings of 4 letters: AUGC.
Protein sequences are strings of 20 letters: ACDEFGHIKLMNPQRSTVWY for different amino
acids.
GenBank and SWISS-PROT records contain information about the organism, gene, and protein
sequence with literature references. The sequence includes the numbers, which may cause
problems with some analysis programs.
FASTA format is a standard format that is commonly used by programs that analyze sequence
data. This format consists of one line starting with “>” that labels the sequence, followed by the
sequence data as several lines of letters.
DNA sequence of gene in FASTA format:
>gi|16127994:3597560-3598414
TTACGCTTCAATGGCAGCACGCAATTTTTTCATCGCGTTCTTTTCCAGCTGGCGTACACGCTCAGCGGAA
ACGCCGTAACGGTCAGCCAGTTCCTGCAACGTGGACTTGTTGTCTTCGTCCAGCCAGCGCGCACGGATGA
TGTCCTGGCTGCGTTCGTCCAGACCCTGCATCGCGTCGGTCAGACGGTTTGCCGCCTGCTCTTCCCAGTT
ATCATCTTCAATGCCGTCGGCAAAGTTAGATGATTTATCCTGCAGATAGAGCACCGGAGCCATCGGCTGG
CTGTCGGAATCGTCGTCGGAAGACAGGTCAAAGGTCATGTCCTGTGCCGCCATACGTGATTCCATCTCAC
GTACGTCTTTGCTGGTTACGCCCAGTTCACGGGCCACCATTTCGACTTCATCCTGGTTAAACCAGCCCAG
ACGCTGCTTGGTTTTACGCAGGTTGAAGAACAGTTTGCGCTGCGCTTTGGTGGTCGCAACTTTGACGATA
CGCCAGTTACGCAGAACGTATTCGTGGATCTCTGCTTTGATCCAGTGAACGGCGAAGGAGACCAGGCGCA
CACCCACTTCCGGGTTGAAACGGCGCACTGCTTTCATCAGGCCGATGTTACCTTCCTGAATCAAATCCGC
CTGTGGCAGGCCATAGCCCGCATAATTACGAGCAATATGAACAACAAACCGCAGGTGAGACAGGATCAGC
GTTTTAGCTGCTTCCAGATCGCCATGGTAATGCAGCTTTTCAGCCAGCGCCCGCTCCTCGTCAGCCGACA
ACATCGGCCACGCGTTAGCTGCCCGGATGTAGGAATCCAGGTTGCCAACTGGGGCTAAAGCTAAACTTTG
CATTTTGTCAGTCAT
Protein sequence in FASTA format:
>gi|16131333|ref|NP_417918.1| RNA polymerase, sigma(32) factor
MTDKMQSLALAPVGNLDSYIRAANAWPMLSADEERALAEKLHYHGDLEAAKTLILSHLRFVVHIARNYAG
YGLPQADLIQEGNIGLMKAVRRFNPEVGVRLVSFAVHWIKAEIHEYVLRNWRIVKVATTKAQRKLFFNLR
KTKQRLGWFNQDEVEMVARELGVTSKDVREMESRMAAQDMTFDLSSDDDSDSQPMAPVLYLQDKSSNFAD
GIEDDNWEEQAANRLTDAMQGLDERSQDIIRARWLDEDNKSTLQELADRYGVSAERVRQLEKNAMKKLRA
AIEA
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