Chains and heterogens:
PDB Chain Sequences:
>1gr9A (A:) misladlqrrietgelspnaaiaqshaaiearekevhafvrhdksaraqasgplrgiavg ikdiidtanmptemgseiyrgwqprsdapvvmmlkragatiigkttttafasrdptatln phntghspggsssgsaaavgagmiplalgtqtggsvirpaaycgtaaikpsfrmlptvgv kcyswaldtvglfgaraedlargllamtgrsefsgivpakaprigvvrqefagavepaae qglqaaikaaeragasvqaidlpeavheawrihpiiqdfeahralawefsehhdeiapml rasldatvgltpkeydearrigrrgrrelgevfegvdvlltysapgtapakalastgdpr ynrlwtlmgnpcvnvpvlkvgglpigvqviarfgndahalatawfledalak
>1gr9B (B:) misladlqrrietgelspnaaiaqshaaiearekevhafvrhdksaraqasgplrgiavg ikdiidtanmptemgseiyrgwqprsdapvvmmlkragatiigkttttafasrdptatln phntghspggsssgsaaavgagmiplalgtqtggsvirpaaycgtaaikpsfrmlptvgv kcyswaldtvglfgaraedlargllamtgrsefsgivpakaprigvvrqefagavepaae qglqaaikaaeragasvqaidlpeavheawrihpiiqdfeahralawefsehhdeiapml rasldatvgltpkeydearrigrrgrrelgevfegvdvlltysapgtapakalastgdpr ynrlwtlmgnpcvnvpvlkvgglpigvqviarfgndahalatawfledalak