Chains and heterogens:
PDB Chain Sequences:
>2xc3A (A:) mhhhhhhmpspnlppgfdftdpaiyaerlpvaefaelrsaapiwwngqdpgkgggfhdgg fwaitklndvkeisrhsdvfssyengviprfkndiaredievqrfvmlnmdaphhtrlrk iisrgftpravgrlhdelqeraqkiaaeaaaagsgdfveqvscelplqaiagllgvpqed rgklfhwsnemtgnedpeyahidpkassaeligyamkmaeekaknpaddivtqliqadid geklsddefgffvvmlavagnettrnsitqgmmafaehpdqwelykkvrpetaadeivrw atpvtafqrtalrdyelsgvqikkgqrvvmfyrsanfdeevfqdpftfnilrnpnphvgf ggtgahyciganlarmtinlifnavadhmpdlkpisaperlrsgwlngikhwqvdytgrl pvah
>2xc3A (A:) spnlppgfdftdpaiyaerlpvaefaelrsaapiwwngqdpgkgggfhdggfwaitklnd vkeisrhsdvfssyengviprfkndiaredievqrfvmlnmdaphhtrlrkiisrgftpr avgrlhdelqeraqkiaaeaaaagsgdfveqvscelplqaiagllgvpqedrgklfhwsn emtgnedpeyahidpkassaeligyamkmaeekadivtqliqadidgeklsddefgffvv mlavagnettrnsitqgmmafaehpdqwelykkvrpetaadeivrwatpvtafqrtalrd yelsgvqikkgqrvvmfyrsanfdeevfqdpftfnilrnpnphvgfggtgahyciganla rmtinlifnavadhmpdlkpisaperlrsgwlngikhwqvdytgrlpva