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Entry version 121 (07 Apr 2021)
Sequence version 1 (04 Apr 2006)
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Protein

Histone H2A

Gene

h2ax.2

Organism
Xenopus tropicalis (Western clawed frog) (Silurana tropicalis)
Status
Unreviewed-Annotation score:

Annotation score:2 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

<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 functionDNA-binding

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-XTR-110330, Recognition and association of DNA glycosylase with site containing an affected purine
R-XTR-110331, Cleavage of the damaged purine
R-XTR-171306, Packaging Of Telomere Ends
R-XTR-201722, Formation of the beta-catenin:TCF transactivating complex
R-XTR-212300, PRC2 methylates histones and DNA
R-XTR-2299718, Condensation of Prophase Chromosomes
R-XTR-2559580, Oxidative Stress Induced Senescence
R-XTR-2559586, DNA Damage/Telomere Stress Induced Senescence
R-XTR-3214815, HDACs deacetylate histones
R-XTR-3214847, HATs acetylate histones
R-XTR-3214858, RMTs methylate histone arginines
R-XTR-427413, NoRC negatively regulates rRNA expression
R-XTR-5250924, B-WICH complex positively regulates rRNA expression
R-XTR-5578749, Transcriptional regulation by small RNAs
R-XTR-5625886, Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3
R-XTR-5689603, UCH proteinases
R-XTR-5689880, Ub-specific processing proteases
R-XTR-5689901, Metalloprotease DUBs
R-XTR-5693565, Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks
R-XTR-5693571, Nonhomologous End-Joining (NHEJ)
R-XTR-5693607, Processing of DNA double-strand break ends
R-XTR-69473, G2/M DNA damage checkpoint
R-XTR-73728, RNA Polymerase I Promoter Opening
R-XTR-73772, RNA Polymerase I Promoter Escape
R-XTR-8936459, RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function
R-XTR-9018519, Estrogen-dependent gene expression
R-XTR-9670095, Inhibition of DNA recombination at telomere

<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:
Histone H2AUniRule annotation
<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:h2ax.2Imported
Synonyms:h2afxImported, h2afx.2Imported, h2afxlImported
ORF Names:TNeu117f13.1-001Imported
<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)Imported
<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-855944, h2ax.2

<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

Chromosome, Nucleosome coreUniRule annotationARBA annotation, NucleusUniRule annotationARBA annotation

<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

Keywords - PTMi

AcetylationARBA annotation, Ubl conjugationARBA annotation

<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

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSXETG00000021560, Expressed in embryo and 11 other tissues

<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

The nucleosome is a histone octamer containing two molecules each of H2A, H2B, H3 and H4 assembled in one H3-H4 heterotetramer and two H2A-H2B heterodimers. The octamer wraps approximately 147 bp of DNA.

UniRule annotation

GO - Molecular functioni

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
8364.ENSXETP00000046591

<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>Domaini6 – 89HistoneInterPro annotationAdd BLAST84
Domaini92 – 124Histone_H2A_CInterPro annotationAdd BLAST33

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>Regioni1 – 21DisorderedSequence analysisAdd BLAST21
Regioni121 – 143DisorderedSequence analysisAdd BLAST23

<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 histone H2A family.UniRule annotationARBA annotation

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG1756, Eukaryota

Ensembl GeneTree

More...
GeneTreei
ENSGT01020000230360

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_062828_3_1_1

Identification of Orthologs from Complete Genome Data

More...
OMAi
FQMAGRG

Database of Orthologous Groups

More...
OrthoDBi
1504122at2759

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00074, H2A, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.20.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR009072, Histone-fold
IPR002119, Histone_H2A
IPR007125, Histone_H2A/H2B/H3
IPR032454, Histone_H2A_C
IPR032458, Histone_H2A_CS

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00125, Histone, 1 hit
PF16211, Histone_H2A_C, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00620, HISTONEH2A

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00414, H2A, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF47113, SSF47113, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00046, HISTONE_H2A, 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.

Q28E74-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSGRGKTGGK TRAKAKTRSS RAGLQFPVGR VHRLLRKGNY AERVGAGAPV
60 70 80 90 100
YLAAVLEYLT AEILELAGNA ARDNKKTRII PRHLQLAVRN DEELNKLLGG
110 120 130 140
VTIAQGGVLP NIQTVLLPKK TSAAPTATGK SSGKKSSQQS QEY
Length:143
Mass (Da):15,247
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:i723BEFCD2A47D96B
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
CR848416 mRNA Translation: CAJ82985.1

NCBI Reference Sequences

More...
RefSeqi
NP_001015968.1, NM_001015968.2

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSXETT00000087341; ENSXETP00000072643; ENSXETG00000039546

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
548722

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
xtr:548722

<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
CR848416 mRNA Translation: CAJ82985.1
RefSeqiNP_001015968.1, NM_001015968.2

3D structure databases

Database of comparative protein structure models

More...
ModBasei
Search...

SWISS-MODEL Interactive Workspace

More...
SWISS-MODEL-Workspacei
Submit a new modelling project...

Protein-protein interaction databases

STRINGi8364.ENSXETP00000046591

Genome annotation databases

EnsembliENSXETT00000087341; ENSXETP00000072643; ENSXETG00000039546
GeneIDi548722
KEGGixtr:548722

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
548722
XenbaseiXB-GENE-855944, h2ax.2

Phylogenomic databases

eggNOGiKOG1756, Eukaryota
GeneTreeiENSGT01020000230360
HOGENOMiCLU_062828_3_1_1
OMAiFQMAGRG
OrthoDBi1504122at2759

Enzyme and pathway databases

ReactomeiR-XTR-110330, Recognition and association of DNA glycosylase with site containing an affected purine
R-XTR-110331, Cleavage of the damaged purine
R-XTR-171306, Packaging Of Telomere Ends
R-XTR-201722, Formation of the beta-catenin:TCF transactivating complex
R-XTR-212300, PRC2 methylates histones and DNA
R-XTR-2299718, Condensation of Prophase Chromosomes
R-XTR-2559580, Oxidative Stress Induced Senescence
R-XTR-2559586, DNA Damage/Telomere Stress Induced Senescence
R-XTR-3214815, HDACs deacetylate histones
R-XTR-3214847, HATs acetylate histones
R-XTR-3214858, RMTs methylate histone arginines
R-XTR-427413, NoRC negatively regulates rRNA expression
R-XTR-5250924, B-WICH complex positively regulates rRNA expression
R-XTR-5578749, Transcriptional regulation by small RNAs
R-XTR-5625886, Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3
R-XTR-5689603, UCH proteinases
R-XTR-5689880, Ub-specific processing proteases
R-XTR-5689901, Metalloprotease DUBs
R-XTR-5693565, Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks
R-XTR-5693571, Nonhomologous End-Joining (NHEJ)
R-XTR-5693607, Processing of DNA double-strand break ends
R-XTR-69473, G2/M DNA damage checkpoint
R-XTR-73728, RNA Polymerase I Promoter Opening
R-XTR-73772, RNA Polymerase I Promoter Escape
R-XTR-8936459, RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function
R-XTR-9018519, Estrogen-dependent gene expression
R-XTR-9670095, Inhibition of DNA recombination at telomere

Gene expression databases

BgeeiENSXETG00000021560, Expressed in embryo and 11 other tissues

Family and domain databases

CDDicd00074, H2A, 1 hit
Gene3Di1.10.20.10, 1 hit
InterProiView protein in InterPro
IPR009072, Histone-fold
IPR002119, Histone_H2A
IPR007125, Histone_H2A/H2B/H3
IPR032454, Histone_H2A_C
IPR032458, Histone_H2A_CS
PfamiView protein in Pfam
PF00125, Histone, 1 hit
PF16211, Histone_H2A_C, 1 hit
PRINTSiPR00620, HISTONEH2A
SMARTiView protein in SMART
SM00414, H2A, 1 hit
SUPFAMiSSF47113, SSF47113, 1 hit
PROSITEiView protein in PROSITE
PS00046, HISTONE_H2A, 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 nameiQ28E74_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: Q28E74
<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/TrEMBL: April 4, 2006
Last sequence update: April 4, 2006
Last modified: April 7, 2021
This is version 121 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 statusiUnreviewed (UniProtKB/TrEMBL)

<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 proteomeImported
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