Chains and heterogens:
PDB Chain Sequences:
>1g9gA (A:) asspankvyqdrfesmyskikdpangyfseqgipyhsietlmveapdyghvttseamsyy mwleamhgrfsgdftgfdkswsvteqyliptekdqpntsmsrydankpatyapefqdpsk ypspldtsqpvgrdpinsqltsaygtsmlygmhwildvdnwygfgaradgtskpsyintf qrgeqestwetipqpcwdehkfggqygfldlftkdtgtpakqfkytnapdadaravqaty wadqwakeqgksvstsvgkatkmgdylrysffdkyfrkigqpsqagtgydaahyllswyy awgggidstwswiigsshnhfgyqnpfaawvlstdanfkpkssngasdwaksldrqlefy qwlqsaegaiaggatnswngryeavpsgtstfygmgyvenpvyadpgsntwfgmqvwsmq rvaelyyktgdarakklldkwakwingeikfnadgtfqipstidwegqpdtwnptqgytg nanlhvkvvnygtdlgcasslantltyyaaksgdetsrqnaqklldamwnnysdskgist veqrgdyhrfldqevfvpagwtgkmpngdviksgvkfidirskykqdpewqtmvaalqag qvptqrlhrfwaqsefavangvyailfpd