Chains and heterogens:
PDB Chain Sequences:
>1gy9A (A:) mserlsitplgpyigaqisgadltrplsdnqfeqlyhavlrhqvvflrdqaitpqqqral aqrfgelhihpvyphaegvdeiivldthndnppdndnwhtdvtfietppagailaakelp stggdtlwtsgiaayealsvpfrqllsglraehdfrksfpeykyrkteeehqrwreavak nppllhpvvrthpvsgkqalfvnegfttrivdvsekeseallsflfahitkpefqvrwrw qpndiaiwdnrvtqhyanadylpqrrimhratilgdkpfyrag
>1gy9A (A:) rlsitplgpyigaqisgadltrplsdnqfeqlyhavlrhqvvflrdqaitpqqqralaqr fgelhihpvyphaegvdeiivldthndnppdndnwhtdvtfietppagailaakelpstg gdtlwtsgiaayealsvpfrqllsglraehdfrksfpeykyrkteeehqrwreavaknpp llhpvvrthpvsgkqalfvnegfttrivdvsekeseallsflfahitkpefqvrwrwqpn diaiwdnrvtqhyanadylpqrrimhratilgdkpfyra
>1gy9B (B:) mserlsitplgpyigaqisgadltrplsdnqfeqlyhavlrhqvvflrdqaitpqqqral aqrfgelhihpvyphaegvdeiivldthndnppdndnwhtdvtfietppagailaakelp stggdtlwtsgiaayealsvpfrqllsglraehdfrksfpeykyrkteeehqrwreavak nppllhpvvrthpvsgkqalfvnegfttrivdvsekeseallsflfahitkpefqvrwrw qpndiaiwdnrvtqhyanadylpqrrimhratilgdkpfyrag
>1gy9B (B:) erlsitplgpyigaqisgadltrplsdnqfeqlyhavlrhqvvflrdqaitpqqqralaq rfgelhihpvyphaegvdeiivldthndnppdndnwhtdvtfietppagailaakelpst ggdtlwtsgiaayealsvpfrqllsglraehdfrksfpeykyehqrwreavaknppllhp vvrthpvsgkqalfvnegfttrivdvsekeseallsflfahitkpefqvrwrwqpndiai wdnrvtqhyanadylpqrrimhratilgdkpfyra