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B7NN18

- NAPA_ECO7I

UniProt

B7NN18 - NAPA_ECO7I

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Protein
Periplasmic nitrate reductase
Gene
napA, ECIAI39_2344
Organism
Escherichia coli O7:K1 (strain IAI39 / ExPEC)
Status
Reviewed - Annotation score: 3 out of 5 - Protein inferred from homologyi

Functioni

Catalytic subunit of the periplasmic nitrate reductase (NAP). Only expressed at high levels during aerobic growth. NapAB complex receives electrons from the membrane-anchored tetraheme protein NapC, thus allowing electron flow between membrane and periplasm. Essential function for nitrate assimilation and may have a role in anaerobic metabolism By similarity.UniRule annotation

Catalytic activityi

Nitrite + acceptor = nitrate + reduced acceptor.UniRule annotation

Cofactori

Binds 1 4Fe-4S cluster By similarity.UniRule annotation
Binds 1 molybdenum-bis(molybdopterin guanine dinucleotide) (Mo-bis-MGD) cofactor per subunit By similarity.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi46 – 461Iron-sulfur (4Fe-4S) By similarity
Metal bindingi49 – 491Iron-sulfur (4Fe-4S) By similarity
Metal bindingi53 – 531Iron-sulfur (4Fe-4S) By similarity
Metal bindingi81 – 811Iron-sulfur (4Fe-4S) By similarity

GO - Molecular functioni

  1. 4 iron, 4 sulfur cluster binding Source: UniProtKB-HAMAP
  2. electron carrier activity Source: UniProtKB-HAMAP
  3. iron ion binding Source: UniProtKB-HAMAP
  4. molybdenum ion binding Source: InterPro
  5. nitrate reductase activity Source: UniProtKB-HAMAP

GO - Biological processi

  1. Mo-molybdopterin cofactor biosynthetic process Source: UniProtKB-HAMAP
  2. nitrate assimilation Source: UniProtKB-HAMAP
Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Electron transport, Nitrate assimilation, Transport

Keywords - Ligandi

4Fe-4S, Iron, Iron-sulfur, Metal-binding, Molybdenum

Enzyme and pathway databases

BioCyciECOL585057:GJ8I-2418-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Periplasmic nitrate reductase (EC:1.7.99.4)
Gene namesi
Name:napA
Ordered Locus Names:ECIAI39_2344
OrganismiEscherichia coli O7:K1 (strain IAI39 / ExPEC)
Taxonomic identifieri585057 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeEscherichia
ProteomesiUP000000749: Chromosome

Subcellular locationi

Periplasm By similarity UniRule annotation

GO - Cellular componenti

  1. periplasmic space Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Periplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Signal peptidei1 – 3131Tat-type signal Reviewed prediction
Add
BLAST
Chaini32 – 828797Periplasmic nitrate reductaseUniRule annotation
PRO_1000186357Add
BLAST

Post-translational modificationi

Predicted to be exported by the Tat system. The position of the signal peptide cleavage has not been experimentally proven.UniRule annotation

Interactioni

Subunit structurei

Interacts with NapB By similarity.UniRule annotation

Protein-protein interaction databases

STRINGi585057.ECIAI39_2344.

Structurei

3D structure databases

ProteinModelPortaliB7NN18.
SMRiB7NN18. Positions 1-35, 37-827.

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini39 – 95574Fe-4S Mo/W bis-MGD-type
Add
BLAST

Sequence similaritiesi

Keywords - Domaini

Signal

Phylogenomic databases

eggNOGiCOG0243.
HOGENOMiHOG000031441.
KOiK02567.
OMAiCACKVER.
OrthoDBiEOG6CVV7G.

Family and domain databases

HAMAPiMF_01630. Nitrate_reduct.
InterProiIPR009010. Asp_de-COase-like_dom.
IPR006657. MoPterin_dinucl-bd_dom.
IPR006656. Mopterin_OxRdtase.
IPR006963. Mopterin_OxRdtase_4Fe-4S_dom.
IPR027467. MopterinOxRdtase_cofactor_BS.
IPR010051. Periplasm_NO3_reductase_lsu.
IPR006311. TAT_signal.
IPR019546. TAT_signal_bac_arc.
[Graphical view]
PfamiPF04879. Molybdop_Fe4S4. 1 hit.
PF00384. Molybdopterin. 1 hit.
PF01568. Molydop_binding. 1 hit.
[Graphical view]
SMARTiSM00926. Molybdop_Fe4S4. 1 hit.
[Graphical view]
SUPFAMiSSF50692. SSF50692. 1 hit.
TIGRFAMsiTIGR01706. NAPA. 1 hit.
TIGR01409. TAT_signal_seq. 1 hit.
PROSITEiPS51669. 4FE4S_MOW_BIS_MGD. 1 hit.
PS00551. MOLYBDOPTERIN_PROK_1. 1 hit.
PS51318. TAT. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

B7NN18-1 [UniParc]FASTAAdd to Basket

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MKLSRRSFMK ANAVAAAAAA AGLSVPGVAR AVVGQQEAIK WDKAPCRFCG    50
TGCGVLVGTQ QGRVVACQGD PDAPVNRGLN CIKGYFLPKI MYGKDRLTQP 100
LLRMKNGKYD KEGEFTPITW DQAFDVMEEK FKTALKEKGP ESIGMFGSGQ 150
WTIWEGYAAS KLFKAGFRSN NIDPNARHCM ASAVVGFMRT FGMDEPMGCY 200
DDIEQADAFV LWGANMAEMH PILWSRITNR RLSNQNVTVA VLSTYQHRSF 250
ELADNGIIFT PQSDLVILNY IANYIIQNNA INQDFFSKHV NLRKGATDIG 300
YGLRPTHPLE KAAKNPGSDA SEPMSFEDYK AFVAEYTLEK TAEMTGVPKD 350
QLEQLAQLYA DPNKKVISYW TMGFNQHTRG VWANNLVYNL HLLTGKISQP 400
GCGPFSLTGQ PSACGTAREV GTFAHRLPAD MVVTNEKHRD ICEKKWNIPS 450
GTIPAKIGLH AVAQDRALKD GKLNVYWTMC TNNMQAGPNI NEERMPGWRD 500
PRNFIIVSDP YPTVSALAAD LILPTAMWVE KEGAYGNAER RTQFWRQQVQ 550
APGEAKSDLW QLVQFSRRFK TEEVWPEELL AKKPELRGKT LYEVLYATPE 600
VSKFPVSELA EDQLNDESRE LGFYLQKGLF EEYAWFGRGH GHDLAPFDDY 650
HKARGLRWPV VNGKETQWRY SEGNDPYVKM GEGYKFYGKP DGKAVIFALP 700
FEPAAEAPDE EYDLWLSTGR VLEHWHTGSM TRRVPELHRA FPEAVLFIHP 750
LDAKARDLRR GDKVKVVSRR GEVISIVETR GRNRPPQGLV YMPFFDAAQL 800
VNKLTLDATD PLSKETDFKK CAVKLEKV 828
Length:828
Mass (Da):93,116
Last modified:February 10, 2009 - v1
Checksum:iA22D7635C9882ACC
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CU928164 Genomic DNA. Translation: CAR18470.1.
RefSeqiYP_002408304.1. NC_011750.1.

Genome annotation databases

EnsemblBacteriaiCAR18470; CAR18470; ECIAI39_2344.
GeneIDi7152186.
KEGGiect:ECIAI39_2344.
PATRICi18333441. VBIEscCol51957_2443.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CU928164 Genomic DNA. Translation: CAR18470.1 .
RefSeqi YP_002408304.1. NC_011750.1.

3D structure databases

ProteinModelPortali B7NN18.
SMRi B7NN18. Positions 1-35, 37-827.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 585057.ECIAI39_2344.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai CAR18470 ; CAR18470 ; ECIAI39_2344 .
GeneIDi 7152186.
KEGGi ect:ECIAI39_2344.
PATRICi 18333441. VBIEscCol51957_2443.

Phylogenomic databases

eggNOGi COG0243.
HOGENOMi HOG000031441.
KOi K02567.
OMAi CACKVER.
OrthoDBi EOG6CVV7G.

Enzyme and pathway databases

BioCyci ECOL585057:GJ8I-2418-MONOMER.

Family and domain databases

HAMAPi MF_01630. Nitrate_reduct.
InterProi IPR009010. Asp_de-COase-like_dom.
IPR006657. MoPterin_dinucl-bd_dom.
IPR006656. Mopterin_OxRdtase.
IPR006963. Mopterin_OxRdtase_4Fe-4S_dom.
IPR027467. MopterinOxRdtase_cofactor_BS.
IPR010051. Periplasm_NO3_reductase_lsu.
IPR006311. TAT_signal.
IPR019546. TAT_signal_bac_arc.
[Graphical view ]
Pfami PF04879. Molybdop_Fe4S4. 1 hit.
PF00384. Molybdopterin. 1 hit.
PF01568. Molydop_binding. 1 hit.
[Graphical view ]
SMARTi SM00926. Molybdop_Fe4S4. 1 hit.
[Graphical view ]
SUPFAMi SSF50692. SSF50692. 1 hit.
TIGRFAMsi TIGR01706. NAPA. 1 hit.
TIGR01409. TAT_signal_seq. 1 hit.
PROSITEi PS51669. 4FE4S_MOW_BIS_MGD. 1 hit.
PS00551. MOLYBDOPTERIN_PROK_1. 1 hit.
PS51318. TAT. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: IAI39 / ExPEC.

Entry informationi

Entry nameiNAPA_ECO7I
AccessioniPrimary (citable) accession number: B7NN18
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: February 10, 2009
Last modified: May 14, 2014
This is version 41 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

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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