Protein
NADH-quinone oxidoreductase subunit N
Organism
Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / LMG 4051 / NBRC 15346 / NCIMB 9279 / R1 / VKM B-1422)
Function
NDH-1 shuttles electrons from NADH, via FMN and iron-sulfur (Fe-S) centers, to quinones in the respiratory chain. The immediate electron acceptor for the enzyme in this species is believed to be a menaquinone. Couples the redox reaction to proton translocation (for every two electrons transferred, four hydrogen ions are translocated across the cytoplasmic membrane), and thus conserves the redox energy in a proton gradient.
Similarity
Belongs to the complex I subunit 2 family.
Sequence
MNLVLPDVSLAPMLPVLLVLVGAIVSTLGGFWLPRRTLTALNILFVLASGASLVWLWGGAPWAAGMDVPRSAFAGALRADPAALLLGGTVLLGALLTLLVSLDTAYRARVSFAEFDALLMYAVTGCLLIAFSGDLIVMLIGLEIMSLASYVLATLQDSRRSQEAGLKYFLLGSVGSAILIYGLAFLYGATGTLNYAGIAQQVSALDPQNIGILVTGTLLVLSGFGVKIALVPFHQWTPDVYSGAPTLVSLFLSTVVKVAAFAGMLRVFGGALAAGPGWHSVLQILVALTLVIGNAAALYQQNFKRLLAYSAVAHTGFLAMTLLGDTAQGGAALGYYLLVYTLMTVGALAVVAALQRTEEGLTINDMRGLYYRHPAYAVALAFCLASLAGLPPFAGFFAKYLAIQVAFQAGYLLISVLAVLSSVAALVYYLRPAMLMFMPDRTPAREYAHGQRPATNVAVALSLIGIVVLGLLPNLWYGWVASPEIWRLLAGT