>3fkvA (A:) observed residues (from ATOM records)
apqqindivhrtitplieqqkipgmavaviyqgkpyyftwgyadiakkqpvtqqtlfelg
svsrtftgvlggdaiargeiklsdpttkywpeltakqwngitllhlatytagglplqvpd
evksssdllrfyqnwqpawapgtqrlyanssiglfgalavkpsglsfeqamqtrvfqplk
lnhtwinvppaeeknyawgyregkavhvspgaldaeaygvkstiedmarwvqsnlkpldi
nektlqqgiqlaqsrywqtgdmyqglgwemldwpvnpdsiingskialaarpvkaitppt
pavraswvhktgatggfgsyvafipekelgivmlanknypnparvdaawqilnalq