Chains and heterogens:
PDB Chain Sequences:
>1l7jA (A:) sikirdfglgsdlisltnkagvtisftnlgarivdwqkdgkhlilgfdsakeylekdayp gatvgptagrikdglvkisgkdyilnqnegpqtlhggeesihtklwtyevtdlgaevqvk fslvsndgtngypgkiemsvthsfdddnkwkihyeaisdkdtvfnptghvyfnlngdase svenhglrlaasrfvplkdqteivrgdivdikntdldfrqekqlsnafnsnmeqvqlvkg idhpflldqlgldkeqarltlddtsisvftdqpsiviftanfgdlgtlyhekkqvhhggi tfecqvspgseqipelgdislkagekyqattiyslhtk
>1l7jB (B:) sikirdfglgsdlisltnkagvtisftnlgarivdwqkdgkhlilgfdsakeylekdayp gatvgptagrikdglvkisgkdyilnqnegpqtlhggeesihtklwtyevtdlgaevqvk fslvsndgtngypgkiemsvthsfdddnkwkihyeaisdkdtvfnptghvyfnlngdase svenhglrlaasrfvplkdqteivrgdivdikntdldfrqekqlsnafnsnmeqvqlvkg idhpflldqlgldkeqarltlddtsisvftdqpsiviftanfgdlgtlyhekkqvhhggi tfecqvspgseqipelgdislkagekyqattiyslhtk