HAMAP

Accession	MF_01353
Dates	4-SEP-2008 (Created) 2-DEC-2010 (Last updated, Version 5)

Data class

Protein

Predictors

HAMAP; MF_01353; [distribution of match scores in UniProtKB];[seed alignment for MF_01353]

Names

NDH1_NDH1N

Identifier

NDHN

Protein name

RecName: Full=NAD(P)H-quinone oxidoreductase subunit N; EC=1.6.5.-; AltName: Full=NAD(P)H dehydrogenase I subunit N; Short=NDH-1 subunit N; Short=NDH-N;

Gene name

ndhN

FUNCTION: NDH-1 shuttles electrons from an unknown electron donor, via FMN and iron-sulfur (Fe-S) centers, to quinones in the respiratory and/or the photosynthetic chain. The immediate electron acceptor for the enzyme in this species is believed to be plastoquinone. Couples the redox reaction to proton translocation, and thus conserves the redox energy in a proton gradient. Cyanobacterial NDH-1 also plays a role in inorganic carbon-concentration (By similarity).

CATALYTIC ACTIVITY: NAD(P)H + plastoquinone = NAD(P)(+) + plastoquinol.

SUBUNIT: NDH-1 can be composed of about 15 different subunits; different subcomplexes with different compositions have been identified which probably have different functions (By similarity).

SUBCELLULAR LOCATION: Cell inner membrane; Peripheral membrane protein; Cytoplasmic side (By similarity).

SUBCELLULAR LOCATION: Cellular thylakoid membrane; Peripheral membrane protein; Cytoplasmic side (By similarity).

SIMILARITY: Belongs to the complex I ndhN subunit family.

Membrane, NAD, NADP, Oxidoreductase, Plastoquinone, Quinone, Transport.

Cell membrane, Cell inner membrane.

Thylakoid.

GO:0016655; Molecular function: oxidoreductase activity, acting on NADH or NADPH, quinone or similar compound as acceptor.
GO:0055114; Biological process: oxidation-reduction process.

GO:0005886; Cellular component: plasma membrane.

GO:0042651; Cellular component: thylakoid membrane.

Size range:	147-162 amino acids
Related UniRules:	None
Template:	P74069 (NDHN_SYNY3)
Scope:	Bacteria; Cyanobacteria Plastid
Fusion:	Nter: None; Cter: None
Duplicate:	None
Plasmid encoded:	None
Comments:	One of a number of subunits unique to cyanobacteria and plastids, it is nuclearly encoded in angiosperms.