Chains and heterogens:
PDB Chain Sequences:
>1kas_ (-) skrrvvvtglgmlspvgntvestwkallagqsgislidhfdtsayatkfaglvkdfnced iisrkeqrkmdafiqygivagvqamqdsgleiteenatrigaaigsgigglglieenhts lmnggprkispffvpstivnmvaghltimyglrgpsisiatactsgvhnighaariiayg dadvmvaggaekastplgvggfgaaralstrndnpqaasrpwdkerdgfvlgdgagmlvl eeyehakkrgakiyaelvgfgmssdayhmtsppengagaalamanalrdagieasqigyv nahgtstpagdkaeaqavktifgeaasrvlvsstksmtghllgaagavesiysilalrdq avpptinldnpdegcdldfvphearqvsgmeytlcnsfgfggtngslifkki
>1kas_ (-) krrvvvtglgmlspvgntvestwkallagqsgislidhfdtsayatkfaglvkdfncedi isrkeqrkmdafiqygivagvqamqdsgleiteenatrigaaigsgigglglieenhtsl mnggprkispffvpstivnmvaghltimyglrgpsisiatactsgvhnighaariiaygd advmvaggaekastplgvggfgaaralstrndnpqaasrpwdkerdgfvlgdgagmlvle eyehakkrgakiyaelvgfgmssdayhmtsppengagaalamanalrdagieasqigyvn ahgtstpagdkaeaqavktifgeaasrvlvsstksmtghllgaagavesiysilalrdqa vpptinldnpdegcdldfvphearqvsgmeytlcnsfgfggtngslifkki