>3ixbA (A:) observed residues (from ATOM records)
apqqindivhrtitplieqqkipgmavaviyqgkpyyftwgyadiakkqpvtqqtlfelg
svsktftgvlggdaiargeiklsdpttkywpeltakqwngitllhlatytagglplqvpd
evksssdllrfyqnwqpawapgtqrlyanssiglfgalavkpsglsfeqamqtrvfqplk
lnhtwinvppaeeknyawgyregkavhvspgaldakaygvkstiedmarwvqsnlkpldi
nektlqqgiqlaqsrywqtgdmyqglgwemldwpvnpdsiiialaarpvkaitpptpavr
aswvhktgatggfgsyvafipekelgivmlanknypnparvdaawqilnalq