Chains and heterogens:
PDB Chain Sequences:
>1sxtA (A:) kdlrkkselqgtalgnlkqiyyynekaktenkeshdqflqhtilfkgfftdhswyndllv dfdskdivdkykgkkvdlygayygyqcaggtpnktacmyggvtlhdnnrlteekkvpinl wldgkqntvpletvktnkknvtvqeldlqarrylqekynlynsdvfdgkvqrglivfhts tepsvnydlfgaqgqysntllriyrdnktinsenmhidiylyts
>1sxtB (B:) kdlrkkselqgtalgnlkqiyyynekaktenkeshdqflqhtilfkgfftdhswyndllv dfdskdivdkykgkkvdlygayygyqcaggtpnktacmyggvtlhdnnrlteekkvpinl wldgkqntvpletvktnkknvtvqeldlqarrylqekynlynsdvfdgkvqrglivfhts tepsvnydlfgaqgqysntllriyrdnktinsenmhidiylyts
>1sxtB (B:) kdlrkkselqgtalgnlkqiyyynekaktenkeshdqflqhtilfkgfftdhswyndllv dfdskdivdkykgkkvdlygayygyqcanktacmyggvtlhdnnrlteekkvpinlwldg kqntvpletvktnkknvtvqeldlqarrylqekynlynsdvfdgkvqrglivfhtsteps vnydlfgaqgqysntllriyrdnktinsenmhidiylyts