Chains and heterogens:
PDB Chain Sequences:
>1nsrA (A:) msikirdfglgsdlisltnkagvtisftnlgarivdwqkdgkhlilgfdsakeylekday pgatvgptagrikdglvkisgkdyilnqnegpqtlhggeesihtklwtyevtdlgaevqv kfslvsndgtngypgkiemsvthsfdddnkwkihyeaisdkdtvfnptghvyfnlngdas esvenhglrlaasrfvplkdqteivrgdivdikntdldfrqekqlsnafnsnmeqvqlvk ginhpflldqlgldkeqarltlddtsisvftdqpsiviftanfgdlgtlyhekkqvhhgg itfecqvspgseqipelgdislkagekyqattiyslhtklehhhhhh
>1nsrA (A:) sikirdfglgsdlisltnkagvtisftnlgarivdwqkdgkhlilgfdsakeylekdayp gatvgptagrikdglvkisgkdyilnqnegpqtlhggeesihtklwtyevtdlgaevqvk fslvsndgtngypgkiemsvthsfdddnkwkihyeaisdkdtvfnptghvyfnlngdase svenhglrlaasrfvplkdqteivrgdivdikntdldfrqekqlsnafnsnmeqvqlvkg inhpflldqlgldkeqarltlddtsisvftdqpsiviftanfgdlgtlyhekkqvhhggi tfecqvspgseqipelgdislkagekyqattiyslhtkl
>1nsrB (B:) msikirdfglgsdlisltnkagvtisftnlgarivdwqkdgkhlilgfdsakeylekday pgatvgptagrikdglvkisgkdyilnqnegpqtlhggeesihtklwtyevtdlgaevqv kfslvsndgtngypgkiemsvthsfdddnkwkihyeaisdkdtvfnptghvyfnlngdas esvenhglrlaasrfvplkdqteivrgdivdikntdldfrqekqlsnafnsnmeqvqlvk ginhpflldqlgldkeqarltlddtsisvftdqpsiviftanfgdlgtlyhekkqvhhgg itfecqvspgseqipelgdislkagekyqattiyslhtklehhhhhh
>1nsrB (B:) sikirdfglgsdlisltnkagvtisftnlgarivdwqkdgkhlilgfdsakeylekdayp gatvgptagrikdglvkisgkdyilnqnegpqtlhggeesihtklwtyevtdlgaevqvk fslvsndgtngypgkiemsvthsfdddnkwkihyeaisdkdtvfnptghvyfnlngdase svenhglrlaasrfvplkdqteivrgdivdikntdldfrqekqlsnafnsnmeqvqlvkg inhpflldqlgldkeqarltlddtsisvftdqpsiviftanfgdlgtlyhekkqvhhggi tfecqvspgseqipelgdislkagekyqattiyslhtklehhhhhh