ExplorEnz: EC 1.18.1.4

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1.18.1.4

Accepted name:

rubredoxin—NAD(P)⁺ reductase

Reaction:

2 reduced rubredoxin + NAD(P)⁺ + H⁺ = 2 oxidized rubredoxin + NAD(P)H

Glossary:

benzyl viologen = 1,1′-dibenzyl-4,4′-bipyridinium
2,6-dichloroindophenol = 4-(2,6-dichloro-4-hydroxyphenylimino)cyclohexa-2,5-dien-1-one
menadione = 2-methyl-1,4-naphthoquinone
rubredoxin = iron-containing protein found in sulfur-metabolizing bacteria and archaea, participating in electron transfer

Other name(s):

rubredoxin-nicotinamide adenine dinucleotide (phosphate) reductase; rubredoxin-nicotinamide adenine; dinucleotide phosphate reductase; NAD(P)⁺-rubredoxin oxidoreductase; NAD(P)H-rubredoxin oxidoreductase

Systematic name:

rubredoxin:NAD(P)⁺ oxidoreductase

Comments:

The enzyme from Pyrococcus furiosus requires FAD. It reduces a number of electron carriers, including benzyl viologen, menadione and 2,6-dichloroindophenol, but rubredoxin is the most efficient. Ferredoxin is not utilized.

Links to other databases:

BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 80237-97-4

References:

1.	Petitdemange, H., Blusson, H. and Gay, R. Detection of NAD(P)H-rubredoxin oxidoreductases in Clostridia. Anal. Biochem. 116 (1981) 564–570. [DOI] [PMID: 6274224]
2.	Ma, K. and Adams, M.W.W. A hyperactive NAD(P)H:rubredoxin oxidoreductase from the hyperthermophilic archaeon Pyrococcus furiosus. J. Bacteriol. 181 (1999) 5530–5533. [PMID: 10464233]

[EC 1.18.1.4 created 1984, modified 2001, modified 2011]