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Protein

Periplasmic nitrate reductase

Gene

napA

Organism
Vibrio vulnificus (strain YJ016)
Status
Reviewed-Annotation score: 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.UniRule annotation

Catalytic activityi

Nitrite + acceptor = nitrate + reduced acceptor.UniRule annotation

Cofactori

Protein has several cofactor binding sites:
  • [4Fe-4S] clusterUniRule annotationNote: Binds 1 [4Fe-4S] cluster.UniRule annotation
  • Mo-bis(molybdopterin guanine dinucleotide)UniRule annotationNote: Binds 1 molybdenum-bis(molybdopterin guanine dinucleotide) (Mo-bis-MGD) cofactor per subunit.UniRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi48 – 481Iron-sulfur (4Fe-4S)UniRule annotation
Metal bindingi51 – 511Iron-sulfur (4Fe-4S)UniRule annotation
Metal bindingi55 – 551Iron-sulfur (4Fe-4S)UniRule annotation
Metal bindingi83 – 831Iron-sulfur (4Fe-4S)UniRule annotation

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

BioCyciVVUL196600:GJ9W-4589-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Periplasmic nitrate reductaseUniRule annotation (EC:1.7.99.4UniRule annotation)
Gene namesi
Name:napAUniRule annotation
Ordered Locus Names:VVA1192
OrganismiVibrio vulnificus (strain YJ016)
Taxonomic identifieri196600 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaVibrionalesVibrionaceaeVibrio
ProteomesiUP000002675 Componenti: Chromosome II

Subcellular locationi

  1. Periplasm 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 – 3030Tat-type signalUniRule annotationAdd
BLAST
Chaini31 – 829799Periplasmic nitrate reductasePRO_0000046013Add
BLAST

Post-translational modificationi

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

Interactioni

Subunit structurei

Interacts with NapB.UniRule annotation

Protein-protein interaction databases

STRINGi196600.VVA1192.

Structurei

3D structure databases

ProteinModelPortaliQ7MD44.
SMRiQ7MD44. Positions 41-827.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini41 – 97574Fe-4S Mo/W bis-MGD-typeUniRule annotationAdd
BLAST

Sequence similaritiesi

Belongs to the prokaryotic molybdopterin-containing oxidoreductase family. NasA/NapA/NarB subfamily.UniRule annotation
Contains 1 4Fe-4S Mo/W bis-MGD-type domain.UniRule annotation

Keywords - Domaini

Signal

Phylogenomic databases

eggNOGiCOG0243.
HOGENOMiHOG000031441.
KOiK02567.
OMAiKITWDKA.
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.
[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.
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.

Q7MD44-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKMTRRAFVK ANAAASAAAV AGITLPASAA NLIASSDQTK ITWDKAPCRF
60 70 80 90 100
CGTGCSVLVG TQNGKVVATQ GDPEAPVNKG LNCIKGYFLS KIMYGQDRLT
110 120 130 140 150
QPLLRMKDGK YDKEGDFTPV SWDVAFDTMA EKWKASLAKK GPTSIGMFGS
160 170 180 190 200
GQWTVMEGYA AAKMMKAGFR SNNIDPNARH CMASAVVGFM RTFGIDEPMG
210 220 230 240 250
CYDDFEHADS FVLWGSNMAE MHPVLWTRIT DRRLSHPHVK VNVLSTYYHR
260 270 280 290 300
SFELADSGYI FKPQSDLAIA NFIANYIIQN DAVNWDFVNK HTNFKQATTD
310 320 330 340 350
IGYGLRDDDP LQKQAKNPNS GNMTSISFEE YKKSVAPYTV EKASEMSGVA
360 370 380 390 400
QDKLIELAKQ YADPNTKVMS LWTMGMNQHT RGVWMNSLVY NIHLLTGKIA
410 420 430 440 450
TPGNSPFSLT GQPSACGTAR EVGTFAHRLP ADMVVANPKH RAIAEKIWKL
460 470 480 490 500
PEGTIPPKPG FHAVLQDRML HDGVLNCYWV QCNNNMQAGP NINGERLPGY
510 520 530 540 550
RNPENFIVVS DPYPTATAQA ADLILPTAMW IEKEGAYGNA ERRTQAWYQQ
560 570 580 590 600
VGTVGEAKSD LWQVMEFSKR FKMEEVWPEE LLAKAPQYRG KTMYDMLFAN
610 620 630 640 650
GQVDKFPLSE ARQLNDDSHH FGFYVQKGLF EEYAEFGRGH GHDLAPYDVY
660 670 680 690 700
HTVRGLRWPV VDGKETLWRY KEGSDPYAKK GSGWDFYGKP DGKALIISAP
710 720 730 740 750
YEAPPESPDA EYDMWLCTGR VLEHWHTGTM TRRVPELYKA VPDAVCYIHP
760 770 780 790 800
EDAKARGLRR GDEVLISNKR GEVRVRVETR GRNRPPQGLV FVPFFDARIL
810 820
INKLILDATD PLSKQTDFKK CPVKITKVA
Length:829
Mass (Da):92,800
Last modified:December 15, 2003 - v1
Checksum:iE1B1F29B75E5F03A
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000038 Genomic DNA. Translation: BAC97218.1.
RefSeqiNP_937248.1. NC_005140.1.
WP_011152449.1. NC_005140.1.

Genome annotation databases

EnsemblBacteriaiBAC97218; BAC97218; BAC97218.
GeneIDi2622051.
KEGGivvy:VVA1192.
PATRICi20175688. VBIVibVul40472_4347.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000038 Genomic DNA. Translation: BAC97218.1.
RefSeqiNP_937248.1. NC_005140.1.
WP_011152449.1. NC_005140.1.

3D structure databases

ProteinModelPortaliQ7MD44.
SMRiQ7MD44. Positions 41-827.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi196600.VVA1192.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAC97218; BAC97218; BAC97218.
GeneIDi2622051.
KEGGivvy:VVA1192.
PATRICi20175688. VBIVibVul40472_4347.

Phylogenomic databases

eggNOGiCOG0243.
HOGENOMiHOG000031441.
KOiK02567.
OMAiKITWDKA.
OrthoDBiEOG6CVV7G.

Enzyme and pathway databases

BioCyciVVUL196600:GJ9W-4589-MONOMER.

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.
[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.
PROSITEiPS51669. 4FE4S_MOW_BIS_MGD. 1 hit.
PS00551. MOLYBDOPTERIN_PROK_1. 1 hit.
PS51318. TAT. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: YJ016.

Entry informationi

Entry nameiNAPA_VIBVY
AccessioniPrimary (citable) accession number: Q7MD44
Entry historyi
Integrated into UniProtKB/Swiss-Prot: February 7, 2006
Last sequence update: December 15, 2003
Last modified: March 4, 2015
This is version 83 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

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.