Chains and heterogens:
PDB Chain Sequences:
>1fsaA (A:) tdqaafdtnivtltrfvmeqgrkargtgemtqllnslctavaaistavrkagiahlygia gstnvtgdqvkkldvlsndlvinvlkssfatcvlvteedknaiivepekrgkyvvcfdpl dgssnidclvsigtifgiyrknstdepsekdalqpgrnlvaagyalygsatmlvlamvng vncfmldpaigefilvdrnvkikkkgsiysinegyakefdpaiteyiqrkkfppdnsapy garyvgsmvadvhrtlvyggifmypankkspkgklrllyecnpmayvmekagglattgke avldivptdihqrapiilgspedvtelleiyqkhaak
>1fsaB (B:) tdqaafdtnivtltrfvmeqgrkargtgemtqllnslctavaaistavrkagiahlygia gstnvtgdqvkkldvlsndlvinvlkssfatcvlvteedknaiivepekrgkyvvcfdpl dgssnidclvsigtifgiyrknstdepsekdalqpgrnlvaagyalygsatmlvlamvng vncfmldpaigefilvdrnvkikkkgsiysinegyakefdpaiteyiqrkkfppdnsapy garyvgsmvadvhrtlvyggifmypankkspkgklrllyecnpmayvmekagglattgke avldivptdihqrapiilgspedvtelleiyqkhaak