Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

Nitrate reductase

Gene

napA

Organism
Escherichia coli 99.0741
Status
Unreviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Catalytic subunit of the nitrate reductase (NAP). Only expressed at high levels during aerobic growth. NapAB complex receives electrons from the membrane-anchored tetraheme protein NapC. Essential function for nitrate assimilation and may have a role in anaerobic metabolism.UniRule annotation
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.SAAS annotation

Catalytic activityi

2 ferrocytochrome + nitrate + 2 H+ = 2 ferricytochrome + nitrite.UniRule annotationSAAS annotation

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi46Iron-sulfur (4Fe-4S)UniRule annotation1
Metal bindingi49Iron-sulfur (4Fe-4S)UniRule annotation1
Metal bindingi53Iron-sulfur (4Fe-4S)UniRule annotation1
Metal bindingi81Iron-sulfur (4Fe-4S)UniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionOxidoreductaseUniRule annotationSAAS annotationImported
Biological processElectron transportUniRule annotationSAAS annotation, Nitrate assimilationUniRule annotationSAAS annotation, Transport
Ligand4Fe-4SUniRule annotationSAAS annotation, Iron, Iron-sulfur, Metal-binding, MolybdenumUniRule annotationSAAS annotation

Names & Taxonomyi

Protein namesi
Recommended name:
Nitrate reductaseUniRule annotation (EC:1.9.6.1UniRule annotation)
Gene namesi
Name:napAUniRule annotationImported
ORF Names:EC970259_2537Imported
OrganismiEscherichia coli 99.0741Imported
Taxonomic identifieri869678 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia
Proteomesi
  • UP000018180 Componenti: Unassembled WGS sequence

Subcellular locationi

  • Periplasm SAAS annotation
  • Secreted UniRule annotation
  • Note: Membrane-associated.UniRule annotation

GO - Cellular componenti

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 31Sequence analysisAdd BLAST31
ChainiPRO_500897710432 – 828Nitrate reductaseSequence analysisAdd BLAST797

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.UniRule annotationSAAS annotation

Structurei

3D structure databases

ProteinModelPortaliV6G2J6.
SMRiV6G2J6.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini39 – 954Fe-4S Mo/W bis-MGD-typeInterPro annotationAdd BLAST57

Sequence similaritiesi

Belongs to the prokaryotic molybdopterin-containing oxidoreductase family. NasA/NapA/NarB subfamily.SAAS annotation

Keywords - Domaini

SignalUniRule annotation

Family and domain databases

HAMAPiMF_01630. Nitrate_reduct. 1 hit.
InterProiView protein in InterPro
IPR009010. Asp_de-COase-like_dom_sf.
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.
PANTHERiPTHR11615:SF123. PTHR11615:SF123. 1 hit.
PfamiView protein in Pfam
PF04879. Molybdop_Fe4S4. 1 hit.
PF00384. Molybdopterin. 1 hit.
PF01568. Molydop_binding. 1 hit.
SMARTiView protein in SMART
SM00926. Molybdop_Fe4S4. 1 hit.
SUPFAMiSSF50692. SSF50692. 1 hit.
TIGRFAMsiTIGR01706. NAPA. 1 hit.
TIGR01409. TAT_signal_seq. 1 hit.
PROSITEiView protein in PROSITE
PS51669. 4FE4S_MOW_BIS_MGD. 1 hit.
PS00551. MOLYBDOPTERIN_PROK_1. 1 hit.
PS51318. TAT. 1 hit.

Sequencei

Sequence statusi: Complete.

V6G2J6-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKLSRRSFMK ANAVAAAAAA AGLSVPGVAR AVVGQQEAIK WDKAPCRFCG
60 70 80 90 100
TGCGVLVGTQ QGRVVACQGD PDAPVNRGLN CIKGYFLPKI MYGKDRLTQP
110 120 130 140 150
LLRMKNGKYD KEGEFTPITW DQAFDVMEEK FKTALKEKGP ESIGMFGSGQ
160 170 180 190 200
WTIWEGYAAS KLFKAGFRSN NIDPNARHCM ASAVVGFMRT FGMDEPMGCY
210 220 230 240 250
DDIEQADAFV LWGANMAEMH PILWSRITNR RLSNQNVTVA VLSTYQHRSF
260 270 280 290 300
ELADNGIIFT PQSDLVILNY IANYIIQNNA INQDFFSKHV NLRKGATDIG
310 320 330 340 350
YGLRPTHPLE KAAKNPGSDA SEPMSFEDYK AFVAEYTLEK TAEMTGVPKD
360 370 380 390 400
QLEQLAQLYA DPNKKVISYW TMGFNQHTRG VWANNLVYNL HLLTGKISQP
410 420 430 440 450
GCGPFSLTGQ PSACGTAREV GTFAHRLPAD MVVTNEKHRD ICEKKWNIPG
460 470 480 490 500
GTIPAKIGLH AVAQDRALKD GKLNVYWTMC TNNMQAGPNI NEERMPGWRD
510 520 530 540 550
PRNFIIVSDP YPTVSALAAD LILPTAMWVE KEGAYGNAER RTQFWRQQVQ
560 570 580 590 600
APGEAKSDLW QLVQFSRRFK TEEVWPEELL AKKPELRGKT LYEVLYATPE
610 620 630 640 650
VSKFPVSELA EDQLNDESRE LGFYLQKGLF EEYAWFGRGH GHDLAPFDDY
660 670 680 690 700
HKARGLRWPV VNGKETQWRY SEGNDPYVKA GEGYKFYGKP DGKAVIFALP
710 720 730 740 750
FEPAAEAPDE EYDLWLSTGR VLEHWHTGSM TRRVPELHRA FPEAVLFIHP
760 770 780 790 800
LDAKARDLRR GDKVKVVSRR GEVISIVETR GRNRPPQGLV YMPFFDAAQL
810 820
VNKLTLDATD PLSKETDFKK CAVKLEKV
Length:828
Mass (Da):93,026
Last modified:February 19, 2014 - v1
Checksum:iC5B3B8ABC93EAA3E
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AEZR02000006 Genomic DNA. Translation: EIH47210.1.
RefSeqiWP_000778057.1. NZ_AEZR02000006.1.

Genome annotation databases

EnsemblBacteriaiEIH47210; EIH47210; EC970259_2537.

Similar proteinsi

Entry informationi

Entry nameiV6G2J6_ECOLX
AccessioniPrimary (citable) accession number: V6G2J6
Entry historyiIntegrated into UniProtKB/TrEMBL: February 19, 2014
Last sequence update: February 19, 2014
Last modified: November 22, 2017
This is version 32 of the entry and version 1 of the sequence. See complete history.
Entry statusiUnreviewed (UniProtKB/TrEMBL)

Miscellaneousi

Caution

The sequence shown here is derived from an EMBL/GenBank/DDBJ whole genome shotgun (WGS) entry which is preliminary data.Imported

Keywords - Technical termi

Complete proteomeImported