Chains and heterogens:
PDB Chain Sequences:
>1f9dA (A:) asspankvyqdrfesmyskikdpangyfseqgipyhsietlmveapdyghvttsqamsyy mwleamhgrfsgdftgfdkswsvteqyliptekdqpntsmsrydankpatyapefqdpsk ypspldtsqpvgrdpinsqltsaygtsmlygmhwildvdnwygfgaradgtskpsyintf qrgeqestwetipqpcwdehkfggqygfldlftkdtgtpakqfkytnapdadaravqaty wadqwakeqgksvstsvgkatkmgdylrysffdkyfrkigqpsqagtgydaahyllswyy awgggidstwswiigsshnhfgyqnpfaawvlstdanfkpkssngasdwaksldrqlefy qwlqsaegaiaggatnswngryeavpsgtstfygmgyvenpvyadpgsntwfgmqvwsmq rvaelyyktgdarakklldkwakwingeikfnadgtfqipstidwegqpdtwnptqgytg nanlhvkvvnygtdlgcasslantltyyaaksgdetsrqnaqklldamwnnysdskgist veqrgdyhrfldqevfvpagwtgkmpngdviksgvkfidirskykqdpewqtmvaalqag qvptqrlhrfwaqsefavangvyailfpd