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Q6CK59

- H2A_KLULA

UniProt

Q6CK59 - H2A_KLULA

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Protein

Histone H2A

Gene

HTA1

more
Organism
Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37) (Yeast) (Candida sphaerica)
Status
Reviewed - Annotation score: 4 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
Sitei119 – 1191Not ubiquitinatedCurated

GO - Molecular functioni

  1. DNA binding Source: UniProtKB-KW

GO - Biological processi

  1. DNA repair Source: UniProtKB-KW
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
Ordered Locus Names:KLLA0E17413g
AND
Name:HTA2
Ordered Locus Names:KLLA0F13332g
OrganismiKluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37) (Yeast) (Candida sphaerica)
Taxonomic identifieri284590 [NCBI]
Taxonomic lineageiEukaryotaFungiDikaryaAscomycotaSaccharomycotinaSaccharomycetesSaccharomycetalesSaccharomycetaceaeKluyveromyces
ProteomesiUP000000598: Chromosome E, UP000000598: Chromosome F

Subcellular locationi

Nucleus By similarity. Chromosome By similarity

GO - Cellular componenti

  1. nucleosome Source: UniProtKB-KW
  2. nucleus Source: UniProtKB-KW
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 – 130129Histone H2APRO_0000228731Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei4 – 41N6-acetyllysineBy similarity
Modified residuei7 – 71N6-acetyllysineBy similarity
Modified residuei105 – 1051N5-methylglutamineBy similarity
Modified residuei127 – 1271PhosphoserineBy 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 by PPH3, a component of the histone H2A phosphatase complex (HTP-C). 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.

Protein-protein interaction databases

STRINGi28985.Q6CK59.

Structurei

3D structure databases

Select the link destinations:
PDBe
RCSB PDB
PDBj
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
2IR1model-@2-130[»]
ProteinModelPortaliQ6CK59.
SMRiQ6CK59. Positions 13-120.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Motif

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Motifi127 – 1282[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

Phylogenomic databases

eggNOGiCOG5262.
HOGENOMiHOG000234652.
InParanoidiQ6CK59.
KOiK11251.
OMAiQESANAN.
OrthoDBiEOG7GN30N.

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.

Q6CK59-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MSGKGGKAGS AAKASQSRSA KAGLTFPVGR VHRLLRKGNY AQRIGSGAPV
60 70 80 90 100
YLTAVLEYLA AEILELAGNA ARDNKKTRII PRHLQLAIRN DDELNKLLGN
110 120 130
VTIAQGGVLP NIHQNLLPKK SSKAKASQEL
Length:130
Mass (Da):13,819
Last modified:January 23, 2007 - v3
Checksum:i75ED4D357BCB3B53
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CR382125 Genomic DNA. Translation: CAG99819.1.
CR382126 Genomic DNA. Translation: CAG98388.1.
RefSeqiXP_454732.1. XM_454732.1.
XP_455680.1. XM_455680.1.

Genome annotation databases

GeneIDi2893743.
2896017.
KEGGikla:KLLA0E17359g.
kla:KLLA0F13332g.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CR382125 Genomic DNA. Translation: CAG99819.1 .
CR382126 Genomic DNA. Translation: CAG98388.1 .
RefSeqi XP_454732.1. XM_454732.1.
XP_455680.1. XM_455680.1.

3D structure databases

Select the link destinations:
PDBe
RCSB PDB
PDBj
Links Updated
Entry Method Resolution (Å) Chain Positions PDBsum
2IR1 model - @ 2-130 [» ]
ProteinModelPortali Q6CK59.
SMRi Q6CK59. Positions 13-120.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 28985.Q6CK59.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

GeneIDi 2893743.
2896017.
KEGGi kla:KLLA0E17359g.
kla:KLLA0F13332g.

Phylogenomic databases

eggNOGi COG5262.
HOGENOMi HOG000234652.
InParanoidi Q6CK59.
KOi K11251.
OMAi QESANAN.
OrthoDBi EOG7GN30N.

Family and domain databases

Gene3Di 1.10.20.10. 1 hit.
InterProi IPR009072. Histone-fold.
IPR007125. Histone_core_D.
IPR002119. Histone_H2A.
[Graphical view ]
Pfami PF00125. Histone. 1 hit.
[Graphical view ]
PRINTSi PR00620. HISTONEH2A.
SMARTi SM00414. H2A. 1 hit.
[Graphical view ]
SUPFAMi SSF47113. SSF47113. 1 hit.
PROSITEi PS00046. HISTONE_H2A. 1 hit.
[Graphical view ]
ProtoNeti Search...

Entry informationi

Entry nameiH2A_KLULA
AccessioniPrimary (citable) accession number: Q6CK59
Entry historyi
Integrated into UniProtKB/Swiss-Prot: March 21, 2006
Last sequence update: January 23, 2007
Last modified: October 29, 2014
This is version 74 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
There are 2 genes for histone H2A in K.lactis.

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-4; H2AK7ac = acetylated Lys-7; H2AS128ph = phosphorylated Ser-127.Curated

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3