>3gcfB (B:) observed residues (from ATOM records)
saqvkwpryleatlgfdnhwhpaafdhelaegefvavtmlgekvlltrakgevkaiadgc
ahrgvpfskeplcfkagtvscwyhgwtydlddgrlvdvltspgspvigkigikvypvqva
qgvvfvfigdeephalsedlppgfldedthllgirrtvqsnwrlgvengfdtthifmhrn
spwvsgnrlafpygfvpadrdamqvydenwpkgvldrlsenympvfeatldgetvlsael
tgeekkvaaqvsvwlpgvlkvdpfpdptliqyefyvpisetqheyfqvlqrkvegpedvk
tfevefeerwrddalhgfndddvwareaqqefygerdgwskeqlfppdmcivkwrtlase
rgrgvra