Chains and heterogens:
PDB Chain Sequences:
>1xpcA (A:) alsltadqmvsalldaeppilyseydptrpfseasmmglltnladrelvhminwakrvpg fvdltlhdqvhllecawleilmiglvwrsmehpgkllfapnllldrnqgkcvegmveifd mllatssrfrmmnlqgeefvclksiillnsgvytflsstlksleekdhihrvldkitdtl ihlmakagltlqqqhqrlaqlllilshirhmsnkgmehlysmkcknvvplydlllemlda hrlhapts
>1xpcA (A:) alsltadqmvsalldaeppilyseydptrpfseasmmglltnladrelvhminwakrvpg fvdltlhdqvhllecawleilmiglvwrsmehpgkllfapnllldrnqgkcvegmveifd mllatssrfrmmnlqgeefvclksiillnsgvytflsstlksleekdhihrvldkitdtl ihlmakagltlqqqhqrlaqlllilshirhmsnkgmehlysmkcknvvplydlllemlda hrlha