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Entry version 98 (12 Aug 2020)
Sequence version 1 (04 Apr 2006)
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Protein

POU domain, class 2, transcription factor 1

Gene

pou2f1

Organism
Xenopus tropicalis (Western clawed frog) (Silurana tropicalis)
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

Transcription factor that binds to the octamer motif (5'-ATTTGCAT-3') and activates the promoters of the genes for some small nuclear RNAs (snRNA) and histone H2B. Acts downstream of Notch signaling during radial glia formation. Regulates apoptosis, possibly via an FGF-signaling pathway (By similarity).By similarity

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 and type of each DNA-binding domain present within the protein.<p><a href='/help/dna_bind' target='_top'>More...</a></p>DNA bindingi395 – 454HomeoboxPROSITE-ProRule annotationAdd BLAST60

<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, Developmental protein, DNA-binding
Biological processTranscription, Transcription regulation

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-XTR-6807505, RNA polymerase II transcribes snRNA genes
R-XTR-76071, RNA Polymerase III Transcription Initiation From Type 3 Promoter
R-XTR-9018519, Estrogen-dependent gene expression

<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:
POU domain, class 2, transcription factor 1Imported
Alternative name(s):
Octamer-binding protein 1
Short name:
Oct-1By similarity
Octamer-binding transcription factor 1By similarity
Short name:
OTF-1
<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:pou2f1Imported
Synonyms:oct-1By similarity, oct1By similarity
ORF Names:TEgg001p15.1
<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>OrganismiXenopus tropicalis (Western clawed frog) (Silurana tropicalis)
<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 identifieri8364 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiAmphibiaBatrachiaAnuraPipoideaPipidaeXenopodinaeXenopusSilurana
<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
  • UP000008143 <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: Unassembled WGS sequence

Organism-specific databases

Xenopus laevis and tropicalis biology and genomics resource

More...
Xenbasei
XB-GENE-853992, pou2f1

<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 Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Keywords - Cellular componenti

Cytoplasm, 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_00003896181 – 757POU domain, class 2, transcription factor 1Add BLAST757

Proteomic databases

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

More...
PaxDbi
Q28BL7

PRoteomics IDEntifications database

More...
PRIDEi
Q28BL7

<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

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
8364.ENSXETP00000013682

<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
Q28BL7

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>Domaini294 – 368POU-specificPROSITE-ProRule annotationAdd BLAST75

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 biasi47 – 282Gln-richSequence analysisAdd BLAST236
Compositional biasi479 – 591Thr-richSequence analysisAdd BLAST113

<p>This subsection of the 'Family and domains' section provides general information on the biological role of a domain. The term 'domain' is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The POU domain controls nuclear translocation.By similarity

<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 POU transcription factor family. Class-2 subfamily.Sequence analysis

Keywords - Domaini

Homeobox

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG3802, Eukaryota

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_013065_4_0_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q28BL7

KEGG Orthology (KO)

More...
KOi
K09364

Database of Orthologous Groups

More...
OrthoDBi
873012at2759

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00086, homeodomain, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.260.40, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR009057, Homeobox-like_sf
IPR017970, Homeobox_CS
IPR001356, Homeobox_dom
IPR010982, Lambda_DNA-bd_dom_sf
IPR013847, POU
IPR000327, POU_dom
IPR000972, TF_octamer

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00046, Homeodomain, 1 hit
PF00157, Pou, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00029, OCTAMER
PR00028, POUDOMAIN

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00389, HOX, 1 hit
SM00352, POU, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF46689, SSF46689, 1 hit
SSF47413, SSF47413, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00027, HOMEOBOX_1, 1 hit
PS50071, HOMEOBOX_2, 1 hit
PS00035, POU_1, 1 hit
PS00465, POU_2, 1 hit
PS51179, POU_3, 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.

Q28BL7-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKLHSSSKIP NHAWLSDARM NNPSETSKSS ESGDGNTGTQ TNGLDFQKQA
60 70 80 90 100
VPIGAITSAQ AQALLGHLHQ VQLAGTSLQA AAQSLNVQTK FKEEPGEPTQ
110 120 130 140 150
AVQPSQQPSL QAAIPQTQLM VAGGPITGLT LTPAQQQLLL QQAQAQLLAA
160 170 180 190 200
AVQHSASQQH SAAGATISAS AATPMTQIPL SQPIQIAQDL QQLQQLQQQN
210 220 230 240 250
LNLQQFVLVH PTTNLPPAQF IISQTPQGQQ GLLQAQNLLT QLPQQSQANL
260 270 280 290 300
LQSQPSITLT SQPATPTRTI AATPVQQLPQ SQTTPKRIDT PSLEEPSDLE
310 320 330 340 350
ELEQFAKTFK QRRIKLGFTQ GDVGLAMGKL YGNDFSQTTI SRFEALNLSF
360 370 380 390 400
KNMCKLKPLL EKWLNDAENI TSDSSLSNQS VLNSPGHGME GLNRRRKKRT
410 420 430 440 450
SIETNIRVAL EKSFLENQKP TSEEITMIAD QLNMEKEVIR VWFCNRRQKE
460 470 480 490 500
KRINPPSSGG SSSSPIKSLF SSANPLVATT PSLVTSSTAT TLTVNPVLPL
510 520 530 540 550
TSAAAITSFP VPGTTGTSSA NTATVISTAP PVSSVLTSPS LSPSPSATAA
560 570 580 590 600
TSEASTASGT STTHTTSTPL TSPLSTGQVM VTASGIHTAA TALQGAAQLP
610 620 630 640 650
TSASLAAMAA AAGLNPGLMA PSQFAAGGAL FSLNPGALGS ALSPALMSNS
660 670 680 690 700
TLATIQALAS SGSLPITSLD ATGNLVFANA GGTPNIVTAP LFLNPQNLSL
710 720 730 740 750
LTSNPVSLVS AASTGVTGPI TSLHATTSSV DSVQNTLFTV ASASGAASTT

TSASKAQ
Length:757
Mass (Da):78,444
Last modified:April 4, 2006 - 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:i65AD8A5AF51B02E2
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
CR942771 mRNA Translation: CAJ82126.1

NCBI Reference Sequences

More...
RefSeqi
NP_001016337.2, NM_001016337.3
XP_012812409.1, XM_012956955.2

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
549091

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
xtr:549091

<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
CR942771 mRNA Translation: CAJ82126.1
RefSeqiNP_001016337.2, NM_001016337.3
XP_012812409.1, XM_012956955.2

3D structure databases

SMRiQ28BL7
ModBaseiSearch...

Protein-protein interaction databases

STRINGi8364.ENSXETP00000013682

Proteomic databases

PaxDbiQ28BL7
PRIDEiQ28BL7

Genome annotation databases

GeneIDi549091
KEGGixtr:549091

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
5451
XenbaseiXB-GENE-853992, pou2f1

Phylogenomic databases

eggNOGiKOG3802, Eukaryota
HOGENOMiCLU_013065_4_0_1
InParanoidiQ28BL7
KOiK09364
OrthoDBi873012at2759

Enzyme and pathway databases

ReactomeiR-XTR-6807505, RNA polymerase II transcribes snRNA genes
R-XTR-76071, RNA Polymerase III Transcription Initiation From Type 3 Promoter
R-XTR-9018519, Estrogen-dependent gene expression

Family and domain databases

CDDicd00086, homeodomain, 1 hit
Gene3Di1.10.260.40, 1 hit
InterProiView protein in InterPro
IPR009057, Homeobox-like_sf
IPR017970, Homeobox_CS
IPR001356, Homeobox_dom
IPR010982, Lambda_DNA-bd_dom_sf
IPR013847, POU
IPR000327, POU_dom
IPR000972, TF_octamer
PfamiView protein in Pfam
PF00046, Homeodomain, 1 hit
PF00157, Pou, 1 hit
PRINTSiPR00029, OCTAMER
PR00028, POUDOMAIN
SMARTiView protein in SMART
SM00389, HOX, 1 hit
SM00352, POU, 1 hit
SUPFAMiSSF46689, SSF46689, 1 hit
SSF47413, SSF47413, 1 hit
PROSITEiView protein in PROSITE
PS00027, HOMEOBOX_1, 1 hit
PS50071, HOMEOBOX_2, 1 hit
PS00035, POU_1, 1 hit
PS00465, POU_2, 1 hit
PS51179, POU_3, 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 nameiPO2F1_XENTR
<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: Q28BL7
<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: December 15, 2009
Last sequence update: April 4, 2006
Last modified: August 12, 2020
This is version 98 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 programChordata 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. SIMILARITY comments
    Index of protein domains and families
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