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Entry version 134 (02 Jun 2021)
Sequence version 1 (01 May 2000)
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Protein

Transcription initiation factor IIB-2

Gene

TFIIB2

Organism
Arabidopsis thaliana (Mouse-ear cress)
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 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

General factor that plays a major role in the activation of eukaryotic genes transcribed by RNA polymerase II.

By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the 'Description' field.<p><a href='/help/metal' target='_top'>More...</a></p>Metal bindingi6ZincPROSITE-ProRule annotation1
Metal bindingi9ZincPROSITE-ProRule annotation1
Metal bindingi26ZincPROSITE-ProRule annotation1
Metal bindingi29ZincPROSITE-ProRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section specifies the position(s) and type(s) of zinc fingers within the protein.<p><a href='/help/zn_fing' target='_top'>More...</a></p>Zinc fingeri2 – 34TFIIB-typePROSITE-ProRule annotationAdd BLAST33

<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

Biological processTranscription, Transcription regulation
LigandMetal-binding, Zinc

<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:
Transcription initiation factor IIB-2
Alternative name(s):
General transcription factor TFIIB-2
Short name:
AtTFIIB2
<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:TFIIB2
Ordered Locus Names:At3g10330
ORF Names:F14P13.7
<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>OrganismiArabidopsis thaliana (Mouse-ear cress)
<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 identifieri3702 [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 lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliopsidaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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%5Fmanual">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 3

Organism-specific databases

Arabidopsis Information Portal

More...
Araporti
AT3G10330

The Arabidopsis Information Resource

More...
TAIRi
locus:2076259, AT3G10330

<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

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 or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001193021 – 312Transcription initiation factor IIB-2Add BLAST312

Proteomic databases

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

More...
PaxDbi
Q9SS44

PRoteomics IDEntifications database

More...
PRIDEi
Q9SS44

ProteomicsDB: a multi-organism proteome resource

More...
ProteomicsDBi
234171

<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

Gene expression databases

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
Q9SS44, baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
Q9SS44, 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%5Fsection">'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%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Associates with TFIID-IIA (DA complex) to form TFIID-IIA-IIB (DAB-complex) which is then recognized by polymerase II.

By similarity

GO - Molecular functioni

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...
BioGRIDi
5529, 1 interactor

STRING: functional protein association networks

More...
STRINGi
3702.AT3G10330.1

<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

More...
SMRi
Q9SS44

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 'Family and Domains' section indicates the positions and types of repeated sequence motifs or repeated domains within the protein.<p><a href='/help/repeat' target='_top'>More...</a></p>Repeati115 – 1921Add BLAST78
Repeati216 – 2902Add BLAST75

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the TFIIB family.Curated

Zinc finger

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri2 – 34TFIIB-typePROSITE-ProRule annotationAdd BLAST33

Keywords - Domaini

Repeat, Zinc-finger

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG1597, Eukaryota

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_043736_1_1_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q9SS44

Identification of Orthologs from Complete Genome Data

More...
OMAi
DQRMKRS

Database of Orthologous Groups

More...
OrthoDBi
729732at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q9SS44

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00043, CYCLIN, 2 hits

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR013763, Cyclin-like
IPR036915, Cyclin-like_sf
IPR000812, TFIIB
IPR023486, TFIIB_CS
IPR013150, TFIIB_cyclin
IPR013137, Znf_TFIIB

The PANTHER Classification System

More...
PANTHERi
PTHR11618, PTHR11618, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF08271, TF_Zn_Ribbon, 1 hit
PF00382, TFIIB, 2 hits

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00685, TIFACTORIIB

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00385, CYCLIN, 2 hits

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF47954, SSF47954, 2 hits

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00782, TFIIB, 1 hit
PS51134, ZF_TFIIB, 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.

Q9SS44-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSDAFCSDCK RHTEVVFDHS AGDTVCSECG LVLESHSIDE TSEWRTFANE
60 70 80 90 100
SGDNDPVRVG GPTNPLLADG GLTTVISKPN GSSGDFLSSS LGRWQNRGSN
110 120 130 140 150
PDRGLIVAFK TIATMADRLG LVATIKDRAN EIYKRVEDQK SSRGRNQDAL
160 170 180 190 200
LAACLYIACR QEDKPRTVKE ICSVANGATK KEIGRAKEYI VKQLGLETGQ
210 220 230 240 250
LVEMGTIHAG DFMRRFCSNL GMTNQTVKAA QESVQKSEEF DIRRSPISIA
260 270 280 290 300
AAVIYIITQL SDEKKPLRDI SVATGVAEGT IRNSYKDLYP HLSKIIPAWY
310
AKEEDLKNLQ SP
Length:312
Mass (Da):34,222
Last modified:May 1, 2000 - 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:i54138B5255E04382
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
AY463601 mRNA Translation: AAR28003.1
AC009400 Genomic DNA Translation: AAF02810.1
CP002686 Genomic DNA Translation: AEE74892.1
AY050421 mRNA Translation: AAK91437.1
AY060526 mRNA Translation: AAL31139.1
AY087850 mRNA Translation: AAM65403.1
Z34661 mRNA Translation: CAA84309.1

NCBI Reference Sequences

More...
RefSeqi
NP_187644.1, NM_111868.3

Genome annotation databases

Ensembl plant genome annotation project

More...
EnsemblPlantsi
AT3G10330.1; AT3G10330.1; AT3G10330

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
820195

Gramene; a comparative resource for plants

More...
Gramenei
AT3G10330.1; AT3G10330.1; AT3G10330

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ath:AT3G10330

<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
AY463601 mRNA Translation: AAR28003.1
AC009400 Genomic DNA Translation: AAF02810.1
CP002686 Genomic DNA Translation: AEE74892.1
AY050421 mRNA Translation: AAK91437.1
AY060526 mRNA Translation: AAL31139.1
AY087850 mRNA Translation: AAM65403.1
Z34661 mRNA Translation: CAA84309.1
RefSeqiNP_187644.1, NM_111868.3

3D structure databases

SMRiQ9SS44
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi5529, 1 interactor
STRINGi3702.AT3G10330.1

Proteomic databases

PaxDbiQ9SS44
PRIDEiQ9SS44
ProteomicsDBi234171

Genome annotation databases

EnsemblPlantsiAT3G10330.1; AT3G10330.1; AT3G10330
GeneIDi820195
GrameneiAT3G10330.1; AT3G10330.1; AT3G10330
KEGGiath:AT3G10330

Organism-specific databases

AraportiAT3G10330
TAIRilocus:2076259, AT3G10330

Phylogenomic databases

eggNOGiKOG1597, Eukaryota
HOGENOMiCLU_043736_1_1_1
InParanoidiQ9SS44
OMAiDQRMKRS
OrthoDBi729732at2759
PhylomeDBiQ9SS44

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q9SS44

Gene expression databases

ExpressionAtlasiQ9SS44, baseline and differential
GenevisibleiQ9SS44, AT

Family and domain databases

CDDicd00043, CYCLIN, 2 hits
InterProiView protein in InterPro
IPR013763, Cyclin-like
IPR036915, Cyclin-like_sf
IPR000812, TFIIB
IPR023486, TFIIB_CS
IPR013150, TFIIB_cyclin
IPR013137, Znf_TFIIB
PANTHERiPTHR11618, PTHR11618, 1 hit
PfamiView protein in Pfam
PF08271, TF_Zn_Ribbon, 1 hit
PF00382, TFIIB, 2 hits
PRINTSiPR00685, TIFACTORIIB
SMARTiView protein in SMART
SM00385, CYCLIN, 2 hits
SUPFAMiSSF47954, SSF47954, 2 hits
PROSITEiView protein in PROSITE
PS00782, TFIIB, 1 hit
PS51134, ZF_TFIIB, 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 nameiTF2B2_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: Q9SS44
Secondary accession number(s): P92972, Q53YT9
<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: June 6, 2002
Last sequence update: May 1, 2000
Last modified: June 2, 2021
This is version 134 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
  2. SIMILARITY comments
    Index of protein domains and families
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