Chains and heterogens:
PDB Chain Sequences:
>1kv7A (A:) aerptlpipdllttdarnriqltigagqstfggktattwgyngnllgpavklqrgkavtv diynqlteettlhwhglevpgevdggpqgiippggkrsvtlnvdqpaatcwfhphqhgkt grqvamglaglvvieddeilklmlpkqwgiddvpvivqdkkfsadgqidyqldvmtaavg wfgdtlltngaiypqhaaprgwlrlrllngcnarslnfatsdnrplyviasdggllpepv kvselpvlmgerfevlvevndnkpfdlvtlpvsqmgmaiapfdkphpvmriqpiaisasg alpdtlsslpalpslegltvrklqlsmdpmldmmgmqmlmekygdqamagmdhsqmmghm ghgnmnhmnhggkfdfhhankingqafdmnkpmfaaakgqyerwvisgvgdmmlhpfhih gtqfrilsengkppaahragwkdtvkvegnvsevlvkfnhdapkehaymahchllehedt gmmlgftv
>1kv7A (A:) rptlpipdllttdarnriqltigagqstfggktattwgyngnllgpavklqrgkavtvdi ynqlteettlhwhglevpgevdggpqgiippggkrsvtlnvdqpaatcwfhphqhgktgr qvamglaglvvieddeilklmlpkqwgiddvpvivqdkkfsadgqidyqldvmtaavgwf gdtlltngaiypqhaaprgwlrlrllngcnarslnfatsdnrplyviasdggllpepvkv selpvlmgerfevlvevndnkpfdlvtlpvsqmgmaiapfdkphpvmriqpiaisasgal pdtlsslpalpslegltvrklqlsmdpmldmmgmqmlmekygdqamagmdfhhankingq afdmnkpmfaaakgqyerwvisgvgdmmlhpfhihgtqfrilsengkppaahragwkdtv kvegnvsevlvkfnhdapkehaymahchllehedtgmmlgftv