Home  |  Contact
Annotation rule MF_01359
Send feedback

General rule information [?]

Accession MF_01359
Dates 18-NOV-2008 (Created)
19-NOV-2019 (Last updated, Version 16)
Name NDH1_NuoCD_1
Scope
Bacteria; Alphaproteobacteria
Bacteria; Betaproteobacteria
Bacteria; Gammaproteobacteria
Template P33599 (NUOCD_ECOLI)

Propagated annotation [?]


Identifier, protein and gene names [?]

Identifier
NUOCD
Protein name
RecName: Full=NADH-quinone oxidoreductase subunit C/D;
EC 7.1.1.-;
AltName: Full=NADH dehydrogenase I subunit C/D;
AltName: Full=NDH-1 subunit C/D;
Gene name
nuoC, nuoCD, nuoD

Comments [?]

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 ubiquinone. 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.
Catalytic activity RHEA:57888: a quinone + 5 H(+)(in) + NADH = a quinol + 4 H(+)(out) + NAD(+)
Subunit NDH-1 is composed of 13 different subunits. Subunits NuoB, CD, E, F, and G constitute the peripheral sector of the complex.
case not defined <Property:Membrane> or <Property:Membrane=1>
Subcellular location Cell membrane; Peripheral membrane protein; Cytoplasmic side.
else case <Property:Membrane=2>
Subcellular location Cell inner membrane; Peripheral membrane protein; Cytoplasmic side.
end case
Similarity In the N-terminal section; belongs to the complex I 30 kDa subunit family.
In the C-terminal section; belongs to the complex I 49 kDa subunit family.

Keywords [?]

case defined <Property:Membrane> and <Property:Membrane=2>
end case

Gene Ontology [?]

GO:0016655; Molecular function: oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor.
GO:0050136; Molecular function: NADH dehydrogenase (quinone) activity.
GO:0005886; Cellular component: plasma membrane.

Cross-references [?]

PROSITE PS00542; COMPLEX1_30K; 1;
PS00535; COMPLEX1_49K; 1;
Pfam PF00329; Complex1_30kDa; 1;
PF00346; Complex1_49kDa; 1;
TIGRFAMs TIGR01961; NuoC_fam; 1;
TIGR01962; NuoD; 1;

Features [?]

From: NUOCD_ECOLI (P33599)
Key     From     To       Description   Tag   Condition   FTGroup
REGION     Nter     186       NADH dehydrogenase I subunit C        
REGION     210     Cter       NADH dehydrogenase I subunit D        

Additional information [?]

Size range 578-608 amino acids
Related rules MF_01357 (NDHJ); MF_01358 (NDHH); MF_01397 (NUOCD)
Fusion Nter: MF_01356 (nuoB); Cter: None
Comments This family is specific for the nuoC-nuoD fusion found in the Alpha-, Beta-, Gamma- and some Deltaproteobacteria. The nuoCD fusion protein found in the Aquificae, Bacteroidetes, some other Delta- and Epsilonproteobacteria is different enough that it seems to be another subfamily (MF_01397). The Geobacter, PELCD and SYNFM nuoBCD fusion proteins are also members of this family. The individual families are MF_01357 (nuoC) and MF_01358 (nuoD). In many bacteria there are both the individual and fused versions. 14 proteins form the NDH-1 complex in most bacteria, there are at least 15 subunits in cyanobacteria and chloroplasts. PARDE and THET8 are annotated with another nomenclature.