Chains and heterogens:
PDB Chain Sequences:
>1qk2A (A:) tatysgnpfvgvtpwanayyasevsslaipsltgamataaaavakvpsfmwldtldktpl meqtladirtanknggnyagqfvvydlpdrdcaalasngeysiadggvakyknyidtirq ivveysdirtllviepdslanlvtnlgtpkcanaqsaylecinyavtqlnlpnvamylda ghagwlgwpanqdpaaqlfanvyknasspralrglatnvanyngwnitsppsytqgnavy neklyihaigpllanhgwsnaffitdqgrsgkqptgqqqwgdwcnvigtgfgirpsantg dslldsfvwvkpggecdgtsdssaprfdshcalpdalqpapqagawfqayfvqlltnanp sfl
>1qk2B (B:) tatysgnpfvgvtpwanayyasevsslaipsltgamataaaavakvpsfmwldtldktpl meqtladirtanknggnyagqfvvydlpdrdcaalasngeysiadggvakyknyidtirq ivveysdirtllviepdslanlvtnlgtpkcanaqsaylecinyavtqlnlpnvamylda ghagwlgwpanqdpaaqlfanvyknasspralrglatnvanyngwnitsppsytqgnavy neklyihaigpllanhgwsnaffitdqgrsgkqptgqqqwgdwcnvigtgfgirpsantg dslldsfvwvkpggecdgtsdssaprfdshcalpdalqpapqagawfqayfvqlltnanp sfl