Chains and heterogens:
PDB Chain Sequences:
>1amf_ (-) gkitvfaaasltnamqdiatqfkkekgvdvvssfassstlarqieagapadlfisadqkw mdyavdkkaidtatrqtllgnslvvvapkasvqkdftidsktnwtsllnggrlavgdpeh vpagiyakealqklgawdtlspklapaedvrgalalverneaplgivygsdavaskgvkv vatfpedshkkveypvavveghnnatvkafydylkgpqaaeifkrygftik