Reviewed, UniProtKB/Swiss-Prot Q6FE71 (NUOA_ACIAD)

Names and origin

Protein names

Recommended name:
    NADH-quinone oxidoreductase subunit A
    EC=1.6.99.5
Alternative name(s):
    NADH dehydrogenase I subunit A
    NDH-1 subunit A
    NUO1

Gene names

Name:	nuoA
Ordered Locus Names:	ACIAD0730

Organism

Acinetobacter sp. (strain ADP1) [Complete proteome] [HAMAP]

Taxonomic identifier

62977 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Pseudomonadales › Moraxellaceae › Acinetobacter

Protein attributes

Sequence length	183 AA.
Sequence status	Complete.
Protein existence	Inferred from homology.

General annotation (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 By similarity. HAMAP MF_01394
Catalytic activity	NADH + quinone = NAD+ + quinol. HAMAP MF_01394
Subunit structure	NDH-1 is composed of 14 different subunits. Subunits nuoA, H, J, K, L, M, N constitute the membrane sector of the complex By similarity. HAMAP MF_01394
Subcellular location	Cell inner membrane; Multi-pass membrane protein By similarity HAMAP MF_01394.
Sequence similarities	Belongs to the complex I subunit 3 family.

Ontologies

Keywords
Biological process	Transport
Cellular component	Cell inner membrane Cell membrane Membrane
Domain	Transmembrane
Ligand	NAD Ubiquinone
Molecular function	Oxidoreductase
PTM	Quinone
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	oxidation reduction Inferred from electronic annotation. Source: HAMAP photosynthesis, light reaction Inferred from electronic annotation. Source: HAMAP transport Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	integral to membrane Inferred from electronic annotation. Source: UniProtKB-SubCell plasma membrane Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	NADH dehydrogenase (ubiquinone) activity Inferred from electronic annotation. Source: InterPro quinone binding Inferred from electronic annotation. Source: UniProtKB-KW
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 183	183	NADH-quinone oxidoreductase subunit A HAMAP MF_01394		PRO_0000362616
Regions
	Transmembrane	11 – 31	21	Potential
	Transmembrane	63 – 83	21	Potential
	Transmembrane	98 – 118	21	Potential

Sequences

	Sequence		Length	Mass (Da)
	Q6FE71-1 [UniParc]. Last modified July 19, 2004. Version 1. Checksum: 2EFC97F90A3B8D7A	FASTA	183	20,052
	10 20 30 40 50 60 MSAITPYDWA IIAFVIGVTF LCVFMLTVPL LLGGKSWGRA KQEQFESGVV SAGGARIRLS 70 80 90 100 110 120 AKFYLVAIFF VVFDLEALYL YAWATSVREV GWMGFTTMVI FVVDLLIALI YVFATGALTW 130 140 150 160 170 180 SPSDRRKAAG IKPKIGSPNM NIAEITRFNS IEELVIDPTG HIPAQSSGRM KSKTSTAPSS KQE

References

[1]

"Unique features revealed by the genome sequence of Acinetobacter sp. ADP1, a versatile and naturally transformation competent bacterium." Barbe V., Vallenet D., Fonknechten N., Kreimeyer A., Oztas S., Labarre L., Cruveiller S., Robert C., Duprat S., Wincker P., Ornston L.N., Weissenbach J., Marliere P., Cohen G.N., Medigue C. Nucleic Acids Res. 32:5766-5779(2004) [PubMed: 15514110] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBL GenBank DDBJ	CR543861 Genomic DNA. Translation: CAG67637.1.
RefSeq	YP_045459.1.
3D structure databases
ModBase	Search...
Protein-protein interaction databases
STRING	Q6FE71.
Genome annotation databases
GeneID	2879580.
GenomeReviews	Gene locus ACIAD0730 in contig CR543861_GR.
KEGG	aci:ACIAD0730.
NMPDR	fig|62977.3.peg.473.
Organism-specific databases
CMR	Search...
Phylogenomic databases
eggNOG	COG0838.
HOGENOM	HBG605540.
OMA	ALYLYAY.
PhylomeDB	Q6FE71.
Enzyme and pathway databases
BioCyc	ASP62977:ACIAD0730-MONOMER.
Family and domain databases
HAMAP	MF_01394. NDH1_NuoA. [Tree]
InterPro	IPR000440. NADH_UbQ/plastoQ_OxRdtase_su3. [Graphical view]
PANTHER	PTHR11058. Oxidored_q4. 1 hit.
Pfam	PF00507. Oxidored_q4. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

NUOA_ACIAD

Accession

Primary (citable) accession number: Q6FE71

Entry history

Integrated into UniProtKB/Swiss-Prot:	February 10, 2009
Last sequence update:	July 19, 2004
Last modified:	January 19, 2010
This is version 41 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)