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Protein

Histone H2A

Gene

HTA1

Organism
Podospora anserina (Pleurage anserina)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Core component of nucleosome which plays a central role in DNA double strand break (DSB) repair. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sitei121 – 1211Not ubiquitinatedCurated

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

DNA damage, DNA repair

Keywords - Ligandi

DNA-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Histone H2A
Gene namesi
Name:HTA1
ORF Names:Pa5D0006
OrganismiPodospora anserina (Pleurage anserina)
Taxonomic identifieri5145 [NCBI]
Taxonomic lineageiEukaryotaFungiDikaryaAscomycotaPezizomycotinaSordariomycetesSordariomycetidaeSordarialesLasiosphaeriaceaePodospora

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Chromosome, Nucleosome core, Nucleus

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Initiator methioninei1 – 11RemovedBy similarity
Chaini2 – 135134Histone H2APRO_0000228733Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei6 – 61N6-acetyllysineBy similarity
Modified residuei10 – 101N6-acetyllysineBy similarity
Modified residuei107 – 1071N5-methylglutamineBy similarity
Modified residuei132 – 1321PhosphoserineBy similarity

Post-translational modificationi

Phosphorylated to form H2AS128ph (gamma-H2A) in response to DNA double-strand breaks (DSBs) generated by exogenous genotoxic agents and by stalled replication forks. Phosphorylation is dependent on the DNA damage checkpoint kinases MEC1/ATR and TEL1/ATM, spreads on either side of a detected DSB site and may mark the surrounding chromatin for recruitment of proteins required for DNA damage signaling and repair. Gamma-H2A is removed from the DNA prior to the strand invasion-primer extension step of the repair process and subsequently dephosphorylated. Dephosphorylation is necessary for efficient recovery from the DNA damage checkpoint (By similarity).By similarity
Acetylated by ESA1 to form H2AK4ac and H2AK7ac.By similarity

Keywords - PTMi

Acetylation, Methylation, Phosphoprotein

Interactioni

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.

Structurei

3D structure databases

ProteinModelPortaliQ875B8.
SMRiQ875B8. Positions 15-122.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Motif

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Motifi132 – 1332[ST]-Q motif

Domaini

The [ST]-Q motif constitutes a recognition sequence for kinases from the PI3/PI4-kinase family.

Sequence similaritiesi

Belongs to the histone H2A family.Curated

Family and domain databases

Gene3Di1.10.20.10. 1 hit.
InterProiIPR009072. Histone-fold.
IPR007125. Histone_core_D.
IPR002119. Histone_H2A.
[Graphical view]
PfamiPF00125. Histone. 1 hit.
[Graphical view]
PRINTSiPR00620. HISTONEH2A.
SMARTiSM00414. H2A. 1 hit.
[Graphical view]
SUPFAMiSSF47113. SSF47113. 1 hit.
PROSITEiPS00046. HISTONE_H2A. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q875B8-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTGGGKSGGK ASSGKNAQSR SSKAGLAFPV GRVHRLLRKG NYAQRVGAGA
60 70 80 90 100
PVYLAAVLEY LAAEILELAG NAARDNKKTR IIPRHLQLAI RNDEELNKLL
110 120 130
GHVTIAQGGV LPNIHQNLLP KKTGTKPGKN ASQEL
Length:135
Mass (Da):14,251
Last modified:January 23, 2007 - v3
Checksum:i90785684E485DF3F
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BX088700 Genomic DNA. Translation: CAD60693.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BX088700 Genomic DNA. Translation: CAD60693.1.

3D structure databases

ProteinModelPortaliQ875B8.
SMRiQ875B8. Positions 15-122.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Family and domain databases

Gene3Di1.10.20.10. 1 hit.
InterProiIPR009072. Histone-fold.
IPR007125. Histone_core_D.
IPR002119. Histone_H2A.
[Graphical view]
PfamiPF00125. Histone. 1 hit.
[Graphical view]
PRINTSiPR00620. HISTONEH2A.
SMARTiSM00414. H2A. 1 hit.
[Graphical view]
SUPFAMiSSF47113. SSF47113. 1 hit.
PROSITEiPS00046. HISTONE_H2A. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. "Characterization of the genomic organization of the region bordering the centromere of chromosome V of Podospora anserina by direct sequencing."
    Silar P., Barreau C., Debuchy R., Kicka S., Turcq B., Sainsard-Chanet A., Sellem C.H., Billault A., Cattolico L., Duprat S., Weissenbach J.
    Fungal Genet. Biol. 39:250-263(2003) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: s.

Entry informationi

Entry nameiH2A_PODAS
AccessioniPrimary (citable) accession number: Q875B8
Entry historyi
Integrated into UniProtKB/Swiss-Prot: March 21, 2006
Last sequence update: January 23, 2007
Last modified: January 7, 2015
This is version 59 of the entry and version 3 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programFungal Protein Annotation Program

Miscellaneousi

Miscellaneous

In contrast to vertebrates and insects, its C-terminus is not monoubiquitinated.Curated

Caution

To ensure consistency between histone entries, we follow the 'Brno' nomenclature for histone modifications, with positions referring to those used in the literature for the 'closest' model organism. Due to slight variations in histone sequences between organisms and to the presence of initiator methionine in UniProtKB/Swiss-Prot sequences, the actual positions of modified amino acids in the sequence generally differ. In this entry the following conventions are used: H2AK4ac = acetylated Lys-6; H2AK7ac = acetylated Lys-10; H2AS128ph = phosphorylated Ser-132.Curated

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.