Chains and heterogens:
PDB Chain Sequences:
>1xksA (A:) gsmfphhsitesvnydvktfgsslpvkvmealtlaevddqltinideggwaclvckekli iwkialspitklsvckelqlppsdfhwsadlvalsysspsgeahstqavavmvatregsi rywpslagedtyteafvdsggdktysfltavqggsfilsssgsqlirlipessgkihqhi lpqgqgmlsgigrkvsslfgilspssdltlssvlwdrerssfysltssniskwelddsse khayswdinralkenitdaiwgsesnyeaikegvniryldlkqncdglvilaaawhsadn pcliyyslitiedngcqmsdavtvevtqynppfqsedlilcqltvpnfsnqtaylynesa vyvcstgtgkfslpqekivfnaqgdsvlgagacggvpiifsrnsglvsitsrenvsilae dlegslassvagpnsesmifetttknetia
>1xksA (A:) esvnydvktfgsslpvkvmealtlaevddqltinideggwaclvckekliiwkialspit klsvckelqlppsdfhwsadlvalsysstqavavmvatregsirywpslagedtyteafv dktysfltavqggsfilsssgsqlirlipessgkihqhilpqgqgmsdltlssvlwdrer ssfysltssniskwelddssekhayswdinralkenitdaiwgsesnyeaikegvniryl dlkqncdglvilaaawhsadnpcliyyslitiedngcqmsdavtvevtqynppfqsedli lcqltvpnfsnqtaylynesavyvcstgtgkfslpqekivfnaqgdsvlgagacggvpii fsrnsglvsitsre