Chains and heterogens:
PDB Chain Sequences:
>1ls1A (A:) mfqqlsarlqeaigrlrgrgriteedlkatlreirralmdadvnlevardfvervreeal gkqvlesltpaevilatvyealkealggearlpvlkdrnlwflvglqgsgktttaaklal yykgkgrrpllvaadtqrpaareqlrllgekvgvpvlevmdgespesirrrveekarlea rdlilvdtagrlqideplmgelarlkevlgpdevllvldamtgqealsvarafdekvgvt glvltkldgdarggaalsarhvtgkpiyfagvsekpeglepfyperlagrilgmg
>1ls1A (A:) mfqqlsarlqeaigrlrgrgriteedlkatlreirralmdadvnlevardfvervreeal gkqvlesltpaevilatvyealkealggearlpvlkdrnlwflvglqgsgktttaaklal yykgkgrrpllvaadtqrpaareqlrllgekvgvpvlevmdgespesirrrveekarlea rdlilvdtagrlqideplmgelarlkevlgpdevllvldamtgqealsvarafdekvgvt glvltkldgdarggaalsarhvtgkpiyfagglepfyperlagrilgmg