Chains and heterogens:
PDB Chain Sequences:
>2gfwA (A:) mrgshhhhhhgsacvskrrvvvtglgmlspvgntvestwkallagqsgislidhfdtsay atkfaglvkdfncediisrkeqrkmdafiqygivagvqamqdsgleiteenatrigaaig sgigglglieenhtslmnggprkispffvpstivnmvaghltimyglrgpsisiatacts gvhnighaariiaygdadvmvaggaekastplgvggfgaaralstrndnpqaasrpwdke rdgfvlgdgagmlvleeyehakkrgakiyaelvgfgmssdayhmtsppengagaalaman alrdagieasqigyvnahgtstpagdkaeaqavktifgeaasrvlvsstksmtghllgaa gavesiysilalrdqavpptinldnpdegcdldfvphearqvsgmeytlcnsfgfggtng slifkki
>2gfwA (A:) krrvvvtglgmlspvgntvestwkallagqsgislidhfdtsayatkfaglvkdfncedi isrkeqrkmdafiqygivagvqamqdsgleiteenatrigaaigsgigglglieenhtsl mnggprkispffvpstivnmvaghltimyglrgpsisiatactsgvhnighaariiaygd advmvaggaekastplgvggfgaaralstrndnpqaasrpwdkerdgfvlgdgagmlvle eyehakkrgakiyaelvgfgmssdayhmtsppengagaalamanalrdagieasqigyvn ahgtstpagdkaeaqavktifgeaasrvlvsstksmtghllgaagavesiysilalrdqa vpptinldnpdegcdldfvphearqvsgmeytlcnsfgfggtngslifkki