Chains and heterogens:
PDB Chain Sequences:
>1pz1A (A:) meytsiadtgieasriglgtwaiggtmwggtdektsietiraaldqgitlidtapaygfg qseeivgkaikeymkrdqvilatktaldwknnqlfrhanrariveevenslkrlqtdyid lyqvhwpdplvpieetaevmkelydagkiraigvsnfsieqmdtfravaplhtiqppynl feremeesvlpyakdnkittllygslcrglltgkmteeytfegddlrnhdpkfqkprfke ylsavnqldklaktrygksvihlavrwildqpgadialwgarkpgqlealseitgwtlns edqkdintilentisdpvgpefmapptreeipg
>1pz1B (B:) meytsiadtgieasriglgtwaiggtmwggtdektsietiraaldqgitlidtapaygfg qseeivgkaikeymkrdqvilatktaldwknnqlfrhanrariveevenslkrlqtdyid lyqvhwpdplvpieetaevmkelydagkiraigvsnfsieqmdtfravaplhtiqppynl feremeesvlpyakdnkittllygslcrglltgkmteeytfegddlrnhdpkfqkprfke ylsavnqldklaktrygksvihlavrwildqpgadialwgarkpgqlealseitgwtlns edqkdintilentisdpvgpefmapptreeipg