Ferric-chelate reductases reduce Fe(3+) to Fe(2+) before its transport from the endosome to the cytoplasm (By similarity). MTAPGFTVSAFILLLHVSFVANYPSGKVTKSCGGMIPEHGHTPQSHPAHNISVSQKTFRPGDQIKVTLSGPPFKGFLLEARDAENLSGPPVGSFTLIDSHVSQLLTCEDVQGSAVSHRSPSKKTEIKVFWDAPSGAPNHITFLATVVEKYKIYWVKIPGPVISQPNVPPFTTPEATIAPMPTVPSVSHLTRSFNASDCGNKKFCIRSPLNCDPEKERACVLLSFTRDDQSVMVEMSGPSKGYLSVAFSHDRWMGDDDAYVCILEDQIVHIQPSHLTGRSHPIMDFGDPLEDMAWRLVDGVMQCSFRRNITLPGVKNRFDLNASYYIFVADGAAVDGRIHKHSQQPLITYEKYNVTGDPKNIGGSHSLLLLKVHGALMFVAWMTTVSVGVLIARFFKPVWSKALFGDAAWFQVHRTLMLTTSALTFIAFLLPFIYRGGWNWHAGYHPYLGFIVMVLAVLQLLLAAFRPPLHDPRRQMFNWTHWSMGTAARIIAVAAMFLGMDLPGLNLPGPWKTYAMIGFVAWHVGTEIILEIHAYRLSRKVEILDDDRIQILQSFTAAEAEGYVFKKVVLAIYVCGNLTFLTMFLSAINRL FRRS1_BOVIN Ferric-chelate reductase 1 FRRS1 591