Chains and heterogens:
PDB Chain Sequences:
>1bsxA (A:) eelqksighkpeptdeeweliktvteahvatnaqgshwkqkrkflpedigqapivnapeg gkvdleafshftkiitpaitrvvdfakklpmfcelpcedqiillkgccmeimslraavry dpesetltlngemavtrgqlkngglgvvsdaifdlgmslssfnlddtevallqavllmss drpglacveriekyqdsfllafehyinyrkhhvthfwpkllmkvtdlrmigachasrflh mkvecptelfpplflevfed
>1bsxA (A:) kpeptdeeweliktvteahvatnaqgshwkqkrkflpedigqapkvdleafshftkiitp aitrvvdfakklpmfcelpcedqiillkgccmeimslraavrydpesetltlngemavtr gqlkngglgvvsdaifdlgmslssfnlddtevallqavllmssdrpglacveriekyqds fllafehyinyrkhhvthfwpkllmkvtdlrmigachasrflhmkvecptelfpplflev fed
>1bsxB (B:) eelqksighkpeptdeeweliktvteahvatnaqgshwkqkrkflpedigqapivnapeg gkvdleafshftkiitpaitrvvdfakklpmfcelpcedqiillkgccmeimslraavry dpesetltlngemavtrgqlkngglgvvsdaifdlgmslssfnlddtevallqavllmss drpglacveriekyqdsfllafehyinyrkhhvthfwpkllmkvtdlrmigachasrflh mkvecptelfpplflevfed
>1bsxB (B:) kpeptdeeweliktvteahvatnaqgshwkqkrkflpedigqapkvdleafshftkiitp aitrvvdfakklpmfcelpcedqiillkgccmeimslraavrydpesetltlngemavtr gqlkngglgvvsdaifdlgmslssfnlddtevallqavllmssdrpglacveriekyqds fllafehyinyrkhhvthfwpkllmkvtdlrmigachasrflhmkvecptelfpplflev fed