>1sxtA (A:) SEQRES residues kdlrkkselqgtalgnlkqiyyynekaktenkeshdqflqhtilfkgfftdhswyndllv dfdskdivdkykgkkvdlygayygyqcaggtpnktacmyggvtlhdnnrlteekkvpinl wldgkqntvpletvktnkknvtvqeldlqarrylqekynlynsdvfdgkvqrglivfhts tepsvnydlfgaqgqysntllriyrdnktinsenmhidiylyts