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A2RIB7

- NAOX_LACLM

UniProt

A2RIB7 - NAOX_LACLM

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Protein
NADH oxidase
Gene
noxE, llmg_0408
Organism
Lactococcus lactis subsp. cremoris (strain MG1363)
Status
Reviewed - Annotation score: 4 out of 5 - Experimental evidence at protein leveli

Functioni

Catalyzes the four-electron reduction of molecular oxygen to water. Active on beta-NADH, but not on alpha-NADH, beta-NADPH or alpha-NADPH. Under aerobic conditions, oxygen acts as the electron acceptor. Under anaerobic conditions, DCIP and MB can replace oxygen as the electron acceptor.2 Publications

Catalytic activityi

NADH + acceptor = NAD+ + reduced acceptor.2 Publications

Cofactori

Binds 1 FAD per subunit.2 Publications

Enzyme regulationi

Inhibited by hydrogen peroxide, sulfhydryl reagents and quinine, but not by EDTA.2 Publications

Kineticsi

  1. KM=4.1 µM for beta-NADH (in the presence of oxygen)2 Publications

Vmax=83 µmol/min/mg enzyme toward beta-NADH (in the presence of oxygen)1 Publication

pH dependencei

Optimum pH is 6.0-9.0. Below pH 6.0 the enzyme is reversibly inactivated, above pH 10.0 the enzyme is irreversibly inactivated.1 Publication

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei10 – 101Proton acceptor By similarityBy similarity
Active sitei42 – 421Redox-active By similarityBy similarity
Binding sitei42 – 421FAD By similarityBy similarity
Binding sitei159 – 1591NAD; via amide nitrogen By similarityBy similarity
Binding sitei178 – 1781NAD By similarityBy similarity
Binding sitei187 – 1871NAD By similarityBy similarity
Binding sitei244 – 2441NAD; via amide nitrogen By similarityBy similarity
Binding sitei282 – 2821FAD By similarityBy similarity
Binding sitei298 – 2981NAD; via carbonyl oxygen By similarityBy similarity
Binding sitei300 – 3001FAD; via amide nitrogen By similarityBy similarity
Binding sitei329 – 3291NAD; via carbonyl oxygen By similarityBy similarity

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi7 – 115FAD By similarityBy similarity
Nucleotide bindingi109 – 1124FAD By similarityBy similarity

GO - Molecular functioni

  1. NADH dehydrogenase activity Source: UniProtKB-EC
  2. flavin adenine dinucleotide binding Source: InterPro
Complete GO annotation...

GO - Biological processi

  1. cell redox homeostasis Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Ligandi

FAD, Flavoprotein, NAD

Enzyme and pathway databases

BioCyciLLAC416870:GCDT-419-MONOMER.
SABIO-RKA2RIB7.

Names & Taxonomyi

Protein namesi
Recommended name:
NADH oxidase (EC:1.6.99.3)
Short name:
NOXase
Gene namesi
Name:noxE
Ordered Locus Names:llmg_0408
OrganismiLactococcus lactis subsp. cremoris (strain MG1363)
Taxonomic identifieri416870 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliLactobacillalesStreptococcaceaeLactococcus
ProteomesiUP000000364: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 446446NADH oxidase
PRO_0000292941Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei42 – 421Cysteine sulfenic acid (-SOH) By similarityBy similarity

Keywords - PTMi

Oxidation

Interactioni

Subunit structurei

Homodimer.2 Publications

Protein-protein interaction databases

STRINGi416870.llmg_0408.

Structurei

3D structure databases

ProteinModelPortaliA2RIB7.

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Redox-active center

Phylogenomic databases

eggNOGiCOG0446.
HOGENOMiHOG000276710.
KOiK00359.
OMAiYMESPVL.
OrthoDBiEOG6QVRCJ.

Family and domain databases

Gene3Di3.30.390.30. 1 hit.
InterProiIPR016156. FAD/NAD-linked_Rdtase_dimer.
IPR013027. FAD_pyr_nucl-diS_OxRdtase.
IPR004099. Pyr_nucl-diS_OxRdtase_dimer.
IPR023753. Pyr_nucl-diS_OxRdtase_FAD/NAD.
IPR001327. Pyr_OxRdtase_NAD-bd_dom.
[Graphical view]
PfamiPF00070. Pyr_redox. 1 hit.
PF07992. Pyr_redox_2. 1 hit.
PF02852. Pyr_redox_dim. 1 hit.
[Graphical view]
PRINTSiPR00368. FADPNR.
SUPFAMiSSF55424. SSF55424. 1 hit.

Sequencei

Sequence statusi: Complete.

A2RIB7-1 [UniParc]FASTAAdd to Basket

« Hide

MKIVVIGTNH AGIATANTLL EQYPGHEIVM IDRNSNMSYL GCGTAIWVGR    50
QIEKPDELFY AKAEDFEAKG VKILTETEVS EIDFANKKVY AKTKSDDEII 100
EAYDKLVLAT GSRPIIPNLP GKDLKGIHFL KLFQEGQAID AEFAKEKVKR 150
IAVIGAGYIG TEIAEAAKRR GKEVLLFDAE NTSLASYYDE EFAKGMDENL 200
AQHGIELHFG ELAKEFKANE EGYVSQIVTN KATYDVDLVI NCIGFTANSA 250
LASDKLATFK NGAIKVDKHQ QSSDPDVYAV GDVATIYSNA LQDFTYIALA 300
SNAVRSGIVA GHNIGGKELE SVGVQGSNGI SIFGYNMTST GLSVKAAKKL 350
GLEVSFSDFE DKQKAWFLHE NNDSVKIRIV YETKSRRIIG AQLASKSEII 400
AGNINMFSLA IQEKKTIDEL ALLDLFFLPH FNSPYNYMTV AALNAK 446
Length:446
Mass (Da):48,872
Last modified:March 6, 2007 - v1
Checksum:i1B1FA2FE313D6C03
GO

Sequence conflict

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti11 – 111A → AA AA sequence 1 Publication

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AY046926 Genomic DNA. Translation: AAL02357.1.
AM406671 Genomic DNA. Translation: CAL97012.1.
RefSeqiYP_001031758.1. NC_009004.1.

Genome annotation databases

EnsemblBacteriaiCAL97012; CAL97012; llmg_0408.
GeneIDi4796799.
KEGGillm:llmg_0408.
PATRICi22281862. VBILacLac4574_0419.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AY046926 Genomic DNA. Translation: AAL02357.1 .
AM406671 Genomic DNA. Translation: CAL97012.1 .
RefSeqi YP_001031758.1. NC_009004.1.

3D structure databases

ProteinModelPortali A2RIB7.
ModBasei Search...

Protein-protein interaction databases

STRINGi 416870.llmg_0408.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai CAL97012 ; CAL97012 ; llmg_0408 .
GeneIDi 4796799.
KEGGi llm:llmg_0408.
PATRICi 22281862. VBILacLac4574_0419.

Phylogenomic databases

eggNOGi COG0446.
HOGENOMi HOG000276710.
KOi K00359.
OMAi YMESPVL.
OrthoDBi EOG6QVRCJ.

Enzyme and pathway databases

BioCyci LLAC416870:GCDT-419-MONOMER.
SABIO-RK A2RIB7.

Family and domain databases

Gene3Di 3.30.390.30. 1 hit.
InterProi IPR016156. FAD/NAD-linked_Rdtase_dimer.
IPR013027. FAD_pyr_nucl-diS_OxRdtase.
IPR004099. Pyr_nucl-diS_OxRdtase_dimer.
IPR023753. Pyr_nucl-diS_OxRdtase_FAD/NAD.
IPR001327. Pyr_OxRdtase_NAD-bd_dom.
[Graphical view ]
Pfami PF00070. Pyr_redox. 1 hit.
PF07992. Pyr_redox_2. 1 hit.
PF02852. Pyr_redox_dim. 1 hit.
[Graphical view ]
PRINTSi PR00368. FADPNR.
SUPFAMi SSF55424. SSF55424. 1 hit.
ProtoNeti Search...

Publicationsi

« Hide 'large scale' publications
  1. "Metabolic engineering of lactic acid bacteria, the combined approach: kinetic modelling, metabolic control and experimental analysis."
    Hoefnagel M.H.N., Starrenburg M.J.C., Martens D.E., Hugenholtz J., Kleerebezem M., Van Swam I.I., Bongers R., Westerhoff H.V., Snoep J.L.
    Microbiology 148:1003-1013(2002) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
  2. "The complete genome sequence of the lactic acid bacterial paradigm Lactococcus lactis subsp. cremoris MG1363."
    Wegmann U., O'Connell-Motherway M., Zomer A., Buist G., Shearman C., Canchaya C., Ventura M., Goesmann A., Gasson M.J., Kuipers O.P., van Sinderen D., Kok J.
    J. Bacteriol. 189:3256-3270(2007) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: MG1363.
  3. "Purification and characterisation of the water forming NADH-oxidase from Lactococcus lactis."
    Lopez de Felipe F., Hugenholtz J.
    Int. Dairy J. 11:37-44(2001)
    [AGRICOLA] [Europe PMC]
    Cited for: PROTEIN SEQUENCE OF 1-25, FUNCTION, CATALYTIC ACTIVITY, COFACTOR, ENZYME REGULATION, BIOPHYSICOCHEMICAL PROPERTIES, SUBUNIT.

Entry informationi

Entry nameiNAOX_LACLM
AccessioniPrimary (citable) accession number: A2RIB7
Secondary accession number(s): P81759, Q8KR34
Entry historyi
Integrated into UniProtKB/Swiss-Prot: June 26, 2007
Last sequence update: March 6, 2007
Last modified: May 14, 2014
This is version 54 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Direct protein sequencing

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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