>purN E. coli K12. Version NC_000913.3 GI:556503834
atgaatattgtggtgcttatttccggcaacggaagtaatttacaggcaattattgacgcc
tgtaaaaccaacaaaattaaaggcaccgtacgggcagttttcagcaataaggccgacgcg
ttcggccttgaacgcgcccgccaggcgggtattgcaacgcatacgctcatcgccagcgcg
tttgacagtcgtgaagcctatgaccgggagttgattcatgaaatcgacatgtacgcaccc
gatgtggtcgtgctggctggttttatgcgcattctcagcccggcgtttgtctcccactat
gccgggcgtttgctgaacattcacccttctctgctgccgaaatatcccggattacacacc
catcgtcaggcgctggaaaatggcgatgaagagcacggtacatcggtgcatttcgtcacc
gatgaactggacggtggcccggttattttacaggcgaaagtcccggtatttgctggtgat
tcggaagatgacatcaccgcccgcgtgcaaacccaggaacacgccatttatccactggtg
attagctggtttgccgatggtcgtctgaaaatgcacgaaaacgccgcgtggctggatggt
caacgtctgccgccgcagggctacgctgccgacgagtaa