Chains and heterogens:
PDB Chain Sequences:
>1i5qA (A:) apqqindivhrtitplieqqkipgmavaviyqgkpyyftwgyadiakkqpvtqqtlfelg svsktftgvlggdaiargeiklsdpttkywpeltakqwngitllhlatytagglplqvpd evksssdllrfyqnwqpawapgtqrlyaassiglfgalavkpsglsfeqamqtrvfqplk lnhtwinvppaeeknyawgyregkavhvspgaldaeaygvkstiedmarwvqsnlkpldi nektlqqgiqlaqsrywqtgdmyqglgwemldwpvnpdsiingsdnkialaarpvkaitp ptpavraswvhktgatggfgsyvafipekelgivmlanknypnparvdaawqilnalq
>1i5qA (A:) apqqindivhrtitplieqqkipgmavaviyqgkpyyftwgyadiakkqpvtqqtlfelg svsktftgvlggdaiargeiklsdpttkywpeltakqwngitllhlatytagglplqvpd evksssdllrfyqnwqpawapgtqrlyaassiglfgalavkpsglsfeqamqtrvfqplk lnhtwinvppaeeknyawgyregkavhvspgaldaeaygvkstiedmarwvqsnlkpldi nektlqqgiqlaqsrywqtgdmyqglgwemldwpvnpdsiigdnkialaarpvkaitppt pavraswvhktgatggfgsyvafipekelgivmlanknypnparvdaawqilnalq
>1i5qB (B:) apqqindivhrtitplieqqkipgmavaviyqgkpyyftwgyadiakkqpvtqqtlfelg svsktftgvlggdaiargeiklsdpttkywpeltakqwngitllhlatytagglplqvpd evksssdllrfyqnwqpawapgtqrlyaassiglfgalavkpsglsfeqamqtrvfqplk lnhtwinvppaeeknyawgyregkavhvspgaldaeaygvkstiedmarwvqsnlkpldi nektlqqgiqlaqsrywqtgdmyqglgwemldwpvnpdsiingsdnkialaarpvkaitp ptpavraswvhktgatggfgsyvafipekelgivmlanknypnparvdaawqilnalq