>1v3tB (B:) observed residues (from ATOM records)
fmvkakswtlkkhfqgkptqsdfelktvelpplkngevllealflsvdpymriaskrlke
gavmmgqqvarvvesknsafpagsivlaqsgwtthfisdgkgleklltewpdklplslal
gtigmpgltayfgllevcgvkggetvlvsaaagavgsvvgqiaklkgckvvgaagsdeki
aylkqigfdaafnyktvnsleealkkaspdgydcyfdnvggeflntvlsqmkdfgkiaic
gaisvynrmdqlppgpspesiiykqlriegfivyrwqgdvrekalrdlmkwvlegkiqyh
ehvtkgfenmpaafiemlnganlgkavvta