>sp|P20921|FRDB_PROVU Fumarate reductase iron-sulfur subunit OS=Proteus vulgaris GN=frdB
MADDMKHVKMEVMRYNPETDDAPHFVTYDVPYDEQTSLLDALGYIKDNLAPDLSYRWSCR
MAICGSCGMMVNRVPKLACKTFMRDYPNGVRIEALGNFPVERDLVVDMTHFIESLEAIKP
YILGNDRKPSEGPNKQTPAQMAKYHQFSGCINCGLCYAACPQFGLNPEFIGPAAITLAQR
YNTDSRDHGAKERMPQLNGENGVWSCTFVGYCSEVCPKHVDPAAAIQQGKAASAQDFVIA
MLKPR