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Entry version 110 (11 Dec 2019)
Sequence version 1 (01 Jun 2002)
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Protein

Transcription factor NAI1

Gene

NAI1

Organism
Arabidopsis thaliana (Mouse-ear cress)
Status
Reviewed-Annotation score:

Annotation score:4 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 transcript 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

Transcription activator that regulates the expression of at least NAI2, PYK10 and PBP1. Required for and mediates the formation of endoplasmic reticulum bodies (ER bodies). Involved in the symbiotic interactions with the endophytes of the Sebacinaceae fungus family, such as Piriformospora indica and Sebacina.6 Publications

<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 processTranscription, Transcription regulation

<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_and_taxonomy_section">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:
Transcription factor NAI1
Alternative name(s):
Basic helix-loop-helix protein 20
Short name:
AtbHLH20
Short name:
bHLH 20
Transcription factor EN 27
bHLH transcription factor bHLH020
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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:NAI1
Synonyms:BHLH20, EN27
Ordered Locus Names:At2g22770
ORF Names:T30L20.3
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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>OrganismiArabidopsis thaliana (Mouse-ear cress)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 identifieri3702 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliopsidaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000006548 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components. <br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome 2

Organism-specific databases

Arabidopsis Information Portal

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Araporti
AT2G22770

The Arabidopsis Information Resource

More...
TAIRi
locus:2062235 AT2G22770

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cell wall Cytoskeleton Vacuole Chloroplast Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertion Graphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Keywords - Cellular componenti

Nucleus

<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.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00003587341 – 320Transcription factor NAI1Add BLAST320

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

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PaxDbi
Q8S3F1

PRoteomics IDEntifications database

More...
PRIDEi
Q8S3F1

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the ‘Expression’ section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified ‘at protein level’. <br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Expressed constitutively in roots, leaves, stems, and flowers.1 Publication

Gene expression databases

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
Q8S3F1 baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
Q8S3F1 AT

<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_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homodimer.

Curated

GO - Molecular functioni

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGrid)

More...
BioGridi
2160, 8 interactors

Protein interaction database and analysis system

More...
IntActi
Q8S3F1, 5 interactors

STRING: functional protein association networks

More...
STRINGi
3702.AT2G22770.1

<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
Q8S3F1

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_and_domains_section">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>Domaini128 – 177bHLHPROSITE-ProRule annotationAdd BLAST50

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes the position of regions of compositional bias within the protein and the particular amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi64 – 87Ser-richAdd BLAST24

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

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eggNOGi
ENOG410JB60 Eukaryota
ENOG41118GE LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000240300

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q8S3F1

Identification of Orthologs from Complete Genome Data

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OMAi
GCMIKIL

Database of Orthologous Groups

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OrthoDBi
1211596at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q8S3F1

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00083 HLH, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
4.10.280.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR011598 bHLH_dom
IPR036638 HLH_DNA-bd_sf

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00010 HLH, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00353 HLH, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF47459 SSF47459, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS50888 BHLH, 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_length">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_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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.

Q8S3F1-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MDDSSFMDLM IDTDEYLIDD WESDFPICGE TNTNPGSESG SGTGFELLAE
60 70 80 90 100
RPTKQMKTNN NMNSTSSSPS SSSSSGSRTS QVISFGSPDT KTNPVETSLN
110 120 130 140 150
FSNQVSMDQK VGSKRKDCVN NGGRREPHLL KEHVLAERKR RQKLNERLIA
160 170 180 190 200
LSALLPGLKK TDKATVLEDA IKHLKQLQER VKKLEEERVV TKKMDQSIIL
210 220 230 240 250
VKRSQVYLDD DSSSYSSTCS AASPLSSSSD EVSIFKQTMP MIEARVSDRD
260 270 280 290 300
LLIRVHCEKN KGCMIKILSS LEKFRLEVVN SFTLPFGNST LVITILTKMD
310 320
NKFSRPVEEV VKNIRVALAE
Length:320
Mass (Da):35,697
Last modified:June 1, 2002 - 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:iB4BD1E25BD2D244D
GO

<p>This subsection of the ‘Sequence’ section reports difference(s) between the protein sequence shown in the UniProtKB entry and other available protein sequences derived from the same gene.<p><a href='/help/sequence_caution' target='_top'>More...</a></p>Sequence cautioni

The sequence AAC63588 differs from that shown. Reason: Erroneous gene model prediction.Curated

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Sequence’ section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti73S → C in BAD44011 (PubMed:12679534).Curated1

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
AF488564 mRNA Translation: AAM10936.1
AC005617 Genomic DNA Translation: AAC63588.1 Sequence problems.
CP002685 Genomic DNA Translation: AEC07352.1
AK176248 mRNA Translation: BAD44011.1

Protein sequence database of the Protein Information Resource

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PIRi
F84616

NCBI Reference Sequences

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RefSeqi
NP_850031.2, NM_179700.3

Genome annotation databases

Ensembl plant genome annotation project

More...
EnsemblPlantsi
AT2G22770.1; AT2G22770.1; AT2G22770

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
816807

Gramene; a comparative resource for plants

More...
Gramenei
AT2G22770.1; AT2G22770.1; AT2G22770

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ath:AT2G22770

<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
AF488564 mRNA Translation: AAM10936.1
AC005617 Genomic DNA Translation: AAC63588.1 Sequence problems.
CP002685 Genomic DNA Translation: AEC07352.1
AK176248 mRNA Translation: BAD44011.1
PIRiF84616
RefSeqiNP_850031.2, NM_179700.3

3D structure databases

SMRiQ8S3F1
ModBaseiSearch...

Protein-protein interaction databases

BioGridi2160, 8 interactors
IntActiQ8S3F1, 5 interactors
STRINGi3702.AT2G22770.1

Proteomic databases

PaxDbiQ8S3F1
PRIDEiQ8S3F1

Genome annotation databases

EnsemblPlantsiAT2G22770.1; AT2G22770.1; AT2G22770
GeneIDi816807
GrameneiAT2G22770.1; AT2G22770.1; AT2G22770
KEGGiath:AT2G22770

Organism-specific databases

AraportiAT2G22770
TAIRilocus:2062235 AT2G22770

Phylogenomic databases

eggNOGiENOG410JB60 Eukaryota
ENOG41118GE LUCA
HOGENOMiHOG000240300
InParanoidiQ8S3F1
OMAiGCMIKIL
OrthoDBi1211596at2759
PhylomeDBiQ8S3F1

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q8S3F1

Gene expression databases

ExpressionAtlasiQ8S3F1 baseline and differential
GenevisibleiQ8S3F1 AT

Family and domain databases

CDDicd00083 HLH, 1 hit
Gene3Di4.10.280.10, 1 hit
InterProiView protein in InterPro
IPR011598 bHLH_dom
IPR036638 HLH_DNA-bd_sf
PfamiView protein in Pfam
PF00010 HLH, 1 hit
SMARTiView protein in SMART
SM00353 HLH, 1 hit
SUPFAMiSSF47459 SSF47459, 1 hit
PROSITEiView protein in PROSITE
PS50888 BHLH, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

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 nameiBH020_ARATH
<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: Q8S3F1
Secondary accession number(s): O82398, Q67Z70
<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_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: December 16, 2008
Last sequence update: June 1, 2002
Last modified: December 11, 2019
This is version 110 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 programPlant Protein Annotation Program

<p>This section contains any relevant information that doesn’t fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Reference proteome

Documents

  1. Arabidopsis thaliana
    Arabidopsis thaliana: entries and gene names
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