Protein
Probable respiratory nitrate reductase subunit cytochrome b-561
Organism
Haloferax mediterranei (strain ATCC 33500 / DSM 1411 / JCM 8866 / NBRC 14739 / NCIMB 2177 / R-4)
Function
The respiratory membrane-bound nitrate reductase enzyme complex plays a role in generation of metabolic energy by using nitrate as a terminal electron acceptor during anaerobic conditions. Proposed membrane-embedded heme-iron subunit involved in a protonmotive Q-cycle mechanism-based electron transfer to the beta subunit.
Similarity
Belongs to the cytochrome b family.
Sequence
MSRIDRLADQSADAGNRVYDWMNARFDLDSGRKFLGKAFPAEDSFLLGEVALFCFLLLVLTGMFLGMFFEPSTSDVKYEGSVAKFQGEEVPEAFASVLHITYDIPFGMFIRRMHHWAAHLFVASIGLHMLRVFFTGAYRNPREPNWVVGTALAGLSMGAAYTGYALPFDEFAATATGIGYNLATSIPLVGEVIGKAFFGGEFPSSATIPRLYFIHVLIIPIAIGVLLAIHMMILVRQKHTEAPRDDDVRGLTPKGGQPTDGAVTSDGGTESVVPKEDDSVVVGLPAFPNQTAVSAVVFFLTLATVAMLAGFLPVHNIAEYGPNNPAGTPELIMPDWFLMWVYGLLKLLPSWMSFTIPVVGIHISTEFVGGVLLPTLVFGIIAVWPFVDYHDKSVHFTANPLDRSWQTAVGVAAVQFIMIASIAGMNNLLGRALGVGTGVINPILTVALFVVPIGSGLLTYRILEDSTEQEHARQYTEQAEEADDD