Chains and heterogens:
PDB Chain Sequences:
>1fkx_ (-) tpafnkpkvelhvhldgaikpetilyfgkkrgialpadtveelrniigmdkplslpgfla kfdyympviagcreaikriayefvemkakegvvyvevrysphllanskvdpmpwnqtegd vtpddvvdlvnqglqegeqafgikvrsilccmrhqpswslevlelckkynqktvvamdla gdetiegsslfpghveayegavkngihrtvhagevgspevvreavdilktervghgyhti edealynrllkenmhfevcpwssyltgawdpktthavvrfkndkanyslntdaplifkst ldtdyqmtkkdmgfteeefkrlninaakssflpeeekkellerlyreyq