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3.D.1.1.1
NADH dehydrogenase I, NuoA-N.  NuoL probably comprises part of the proton pathway (Nakamaru-Ogiso et al. 2010).  NuoL (ND5), NuoM (ND4) and NuoN (ND2) are all homologous to proton:sodium antiporters and may all play reoles in pumping protons using a similar mechanism (Sato et al. 2013).

Accession Number:P33599
Protein Name:NUCD aka NUOC aka NUOCD aka NUOD aka B2286
Length:596
Molecular Weight:68236.00
Species:Escherichia coli [83333]
Location1 / Topology2 / Orientation3: Cytoplasm1 / Peripheral membrane protein2
Substrate hydron

Cross database links:

DIP: DIP-10380N
RefSeq: AP_002884.1    NP_416789.2   
Entrez Gene ID: 946759   
Pfam: PF00329    PF00346   
BioCyc: EcoCyc:NUOC-MONOMER    ECOL168927:B2286-MONOMER    MetaCyc:NUOC-MONOMER   
KEGG: ecj:JW5375    eco:b2286   

Gene Ontology

GO:0005737 C:cytoplasm
GO:0045272 C:plasma membrane respiratory chain complex I
GO:0051287 F:NAD or NADH binding
GO:0008137 F:NADH dehydrogenase (ubiquinone) activity
GO:0015453 F:oxidoreduction-driven active transmembrane ...
GO:0048038 F:quinone binding
GO:0009061 P:anaerobic respiration
GO:0055114 P:oxidation reduction
GO:0006810 P:transport

References (8)

[1] “The gene locus of the proton-translocating NADH: ubiquinone oxidoreductase in Escherichia coli. Organization of the 14 genes and relationship between the derived proteins and subunits of mitochondrial complex I.”  Weidner U.et.al.   7690854
[2] “Construction of a contiguous 874-kb sequence of the Escherichia coli-K12 genome corresponding to 50.0-68.8 min on the linkage map and analysis of its sequence features.”  Yamamoto Y.et.al.   9205837
[3] “The complete genome sequence of Escherichia coli K-12.”  Blattner F.R.et.al.   9278503
[4] “Highly accurate genome sequences of Escherichia coli K-12 strains MG1655 and W3110.”  Hayashi K.et.al.   16738553
[5] “Interaction of purified NDH-1 from Escherichia coli with ubiquinone analogues.”  David P.et.al.   11997136
[6] “Mutations in NADH:ubiquinone oxidoreductase of Escherichia coli affect growth on mixed amino acids.”  Pruss B.M.et.al.   8157582
[7] “Isolation and characterization of the proton-translocating NADH: ubiquinone oxidoreductase from Escherichia coli.”  Leif H.et.al.   7607227
[8] “Protein complexes of the Escherichia coli cell envelope.”  Stenberg F.et.al.   16079137

External Searches:

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MTDLTAQEPA WQTRDHLDDP VIGELRNRFG PDAFTVQATR TGVPVVWIKR EQLLEVGDFL 
61:	KKLPKPYVML FDLHGMDERL RTHREGLPAA DFSVFYHLIS IDRNRDIMLK VALAENDLHV 
121:	PTFTKLFPNA NWYERETWDL FGITFDGHPN LRRIMMPQTW KGHPLRKDYP ARATEFSPFE 
181:	LTKAKQDLEM EALTFKPEEW GMKRGTENED FMFLNLGPNH PSAHGAFRIV LQLDGEEIVD 
241:	CVPDIGYHHR GAEKMGERQS WHSYIPYTDR IEYLGGCVNE MPYVLAVEKL AGITVPDRVN 
301:	VIRVMLSELF RINSHLLYIS TFIQDVGAMT PVFFAFTDRQ KIYDLVEAIT GFRMHPAWFR 
361:	IGGVAHDLPR GWDRLLREFL DWMPKRLASY EKAALQNTIL KGRSQGVAAY GAKEALEWGT 
421:	TGAGLRATGI DFDVRKARPY SGYENFDFEI PVGGGVSDCY TRVMLKVEEL RQSLRILEQC 
481:	LNNMPEGPFK ADHPLTTPPP KERTLQHIET LITHFLQVSW GPVMPANESF QMIEATKGIN 
541:	SYYLTSDGST MSYRTRVRTP SFAHLQQIPA AIRGSLVSDL IVYLGSIDFV MSDVDR