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Entry version 113 (02 Dec 2020)
Sequence version 1 (01 Oct 1989)
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Protein

Nitrogen fixation protein VnfA

Gene

vnfA

Organism
Azotobacter vinelandii
Status
Reviewed-Annotation score:

Annotation score:3 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Required for the expression of the V-dependent nitrogen fixation system in Azotobacter vinelandii. It is required for the regulation of nitrogenase 2 transcription. Interacts with sigma-54.

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi238 – 245ATPPROSITE-ProRule annotation8
Nucleotide bindingi301 – 310ATPPROSITE-ProRule annotation10
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section specifies the position and type of each DNA-binding domain present within the protein.<p><a href='/help/dna_bind' target='_top'>More...</a></p>DNA bindingi493 – 512H-T-H motifAdd BLAST20

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionActivator, DNA-binding
Biological processNitrogen fixation, Transcription, Transcription regulation, Two-component regulatory system
LigandATP-binding, Nucleotide-binding

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Nitrogen fixation protein VnfA
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:vnfA
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiAzotobacter vinelandii
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri354 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaPseudomonadalesPseudomonadaceaeAzotobacter

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000813171 – 522Nitrogen fixation protein VnfAAdd BLAST522

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction%5Fsection">Interaction</a>' section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="https://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated at every <a href="http://www.uniprot.org/help/synchronization">UniProt release</a>.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

P12627
With#Exp.IntAct
itself2EBI-7020421,EBI-7020421

GO - Molecular functioni

Protein-protein interaction databases

Molecular INTeraction database

More...
MINTi
P12627

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

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SMRi
P12627

Database of comparative protein structure models

More...
ModBasei
Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini35 – 177GAFAdd BLAST143
Domaini210 – 439Sigma-54 factor interactionPROSITE-ProRule annotationAdd BLAST230

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni22 – 183A domainAdd BLAST162

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.30.450.40, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR003593, AAA+_ATPase
IPR003018, GAF
IPR029016, GAF-like_dom_sf
IPR009057, Homeobox-like_sf
IPR002197, HTH_Fis
IPR027417, P-loop_NTPase
IPR002078, Sigma_54_int
IPR025662, Sigma_54_int_dom_ATP-bd_1
IPR025943, Sigma_54_int_dom_ATP-bd_2
IPR025944, Sigma_54_int_dom_CS

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF01590, GAF, 1 hit
PF02954, HTH_8, 1 hit
PF00158, Sigma54_activat, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR01590, HTHFIS

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00382, AAA, 1 hit
SM00065, GAF, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF46689, SSF46689, 1 hit
SSF52540, SSF52540, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00675, SIGMA54_INTERACT_1, 1 hit
PS00676, SIGMA54_INTERACT_2, 1 hit
PS00688, SIGMA54_INTERACT_3, 1 hit
PS50045, SIGMA54_INTERACT_4, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

P12627-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSSLPQYCEC GLGECRTDVL PLLYEMSQIA TESGDLSSII SILLRLMKRH
60 70 80 90 100
MKVVRGMVTL YDRDSGSIVL HESFGLSPEE AGKGVYLLGE GIIGRVVETG
110 120 130 140 150
QSIVVPCIRD EPAFLNRTGS RDRDSDDANL SFICVPILRG RQVMGTISAE
160 170 180 190 200
RLYDNAELLK LDVEVLSILA TTTAQAVELY LVENVENVAL EAENRRLRSA
210 220 230 240 250
LGERFKPANI IGNSKPMLEV YQLIERVVRT RTTVLILGES GVGKELVAGA
260 270 280 290 300
IHYNSPAAKG PFVKFNCASL PESVIESELF GHEKGSFTGA IGLRKGRFEE
310 320 330 340 350
AAGGTIFLDE VGEMSLTTQA KLLRVLQERS FERVGGNTTI HVDLRVIAAT
360 370 380 390 400
NRNLAEMVAD GTFAEDLYYR LNVFPITIPP LRERGSDIIT LADHFVSRFS
410 420 430 440 450
REMGIEVNRI STPRLNMLQS YQWPGNVREL ENVIERAMLL SEDGVIHGYH
460 470 480 490 500
LPPSLQAPVV GDSEAPPDGL EARLGAIEYE LIVEALKLHH GNMTEAATHL
510 520
GLTARVLGLR MGKYNLNYKD YR
Length:522
Mass (Da):57,630
Last modified:October 1, 1989 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i35619FD910AF59A1
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
M26752 Genomic DNA Translation: AAA82516.1

Protein sequence database of the Protein Information Resource

More...
PIRi
D44514

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M26752 Genomic DNA Translation: AAA82516.1
PIRiD44514

3D structure databases

SMRiP12627
ModBaseiSearch...

Protein-protein interaction databases

MINTiP12627

Family and domain databases

Gene3Di3.30.450.40, 1 hit
InterProiView protein in InterPro
IPR003593, AAA+_ATPase
IPR003018, GAF
IPR029016, GAF-like_dom_sf
IPR009057, Homeobox-like_sf
IPR002197, HTH_Fis
IPR027417, P-loop_NTPase
IPR002078, Sigma_54_int
IPR025662, Sigma_54_int_dom_ATP-bd_1
IPR025943, Sigma_54_int_dom_ATP-bd_2
IPR025944, Sigma_54_int_dom_CS
PfamiView protein in Pfam
PF01590, GAF, 1 hit
PF02954, HTH_8, 1 hit
PF00158, Sigma54_activat, 1 hit
PRINTSiPR01590, HTHFIS
SMARTiView protein in SMART
SM00382, AAA, 1 hit
SM00065, GAF, 1 hit
SUPFAMiSSF46689, SSF46689, 1 hit
SSF52540, SSF52540, 1 hit
PROSITEiView protein in PROSITE
PS00675, SIGMA54_INTERACT_1, 1 hit
PS00676, SIGMA54_INTERACT_2, 1 hit
PS00688, SIGMA54_INTERACT_3, 1 hit
PS50045, SIGMA54_INTERACT_4, 1 hit

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiVNFA_AZOVI
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: P12627
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: October 1, 1989
Last sequence update: October 1, 1989
Last modified: December 2, 2020
This is version 113 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

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