Chains and heterogens:
PDB Chain Sequences:
>1k9oE (E:) ivggytcqensvpyqvslnsgyhfcggslindqwvvsaahcyksriqvrlgehninvleg neqfvnaakiikhpnfdrktlnndimliklsspvklnarvatvalpsscapagtqclisg wgntlssgvnepdllqcldapllpqadceasypgkitdnmvcvgfleggkdscqgdaggp vvcngelqgivswgygcalpdnpgvytkvcnyvdwiqdtiaan
>1k9oI (I:) getdlqkilresndqftaqmfsevvkanpgqnvvlsafsvlpplgqlalasvgeshdell ralalpndnvtkdvfadlnrgvravkgvdlkmaskiyvakglelnddfaavsrdvfgsev qnvdfvksveaagainkwvedqtnnriknlvdpdaldettrsvlvnaiyfkgswkdkfvk ertmdrdfhvskdktikvptmigkkdvryadvpeldakmiemsyegdqasmiiilpnqvd gitaleqklkdpkalsraeerlynteveitlpkfkietttdlkevlsnmnikklftpgaa rlenllktkesltvdaaiqkafievneegaeaaaanafgivpkslilypevhidrpfyfe lkidgipmfngkviep