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Protein

Histone H2A type 2-C

Gene

HIST2H2AC

Organism
Homo sapiens (Human)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Core component of nucleosome. 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.

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionDNA-binding

Enzyme and pathway databases

ReactomeiR-HSA-1221632 Meiotic synapsis
R-HSA-171306 Packaging Of Telomere Ends
R-HSA-201722 Formation of the beta-catenin:TCF transactivating complex
R-HSA-212300 PRC2 methylates histones and DNA
R-HSA-2299718 Condensation of Prophase Chromosomes
R-HSA-2559580 Oxidative Stress Induced Senescence
R-HSA-2559582 Senescence-Associated Secretory Phenotype (SASP)
R-HSA-2559586 DNA Damage/Telomere Stress Induced Senescence
R-HSA-3214815 HDACs deacetylate histones
R-HSA-3214847 HATs acetylate histones
R-HSA-3214858 RMTs methylate histone arginines
R-HSA-427359 SIRT1 negatively regulates rRNA expression
R-HSA-427389 ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression
R-HSA-427413 NoRC negatively regulates rRNA expression
R-HSA-5250924 B-WICH complex positively regulates rRNA expression
R-HSA-5334118 DNA methylation
R-HSA-5578749 Transcriptional regulation by small RNAs
R-HSA-5617472 Activation of anterior HOX genes in hindbrain development during early embryogenesis
R-HSA-5625886 Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3
R-HSA-5689603 UCH proteinases
R-HSA-5689880 Ub-specific processing proteases
R-HSA-5689901 Metalloprotease DUBs
R-HSA-606279 Deposition of new CENPA-containing nucleosomes at the centromere
R-HSA-73728 RNA Polymerase I Promoter Opening
R-HSA-73777 RNA Polymerase I Chain Elongation
R-HSA-8936459 RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function
R-HSA-8939236 RUNX1 regulates transcription of genes involved in differentiation of HSCs
R-HSA-912446 Meiotic recombination
R-HSA-977225 Amyloid fiber formation

Names & Taxonomyi

Protein namesi
Recommended name:
Histone H2A type 2-C
Alternative name(s):
Histone H2A-GL101
Histone H2A/q
Gene namesi
Name:HIST2H2AC
Synonyms:H2AFQ
OrganismiHomo sapiens (Human)
Taxonomic identifieri9606 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo
Proteomesi
  • UP000005640 Componenti: Chromosome 1

Organism-specific databases

EuPathDBiHostDB:ENSG00000184260.5
HGNCiHGNC:4738 HIST2H2AC
MIMi602797 gene
neXtProtiNX_Q16777

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; Source: COMPARTMENTS

Keywords - Cellular componenti

Chromosome, Nucleosome core, Nucleus

Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Mutagenesisi2S → A: Blocks the inhibition of transcription by RPS6KA5/MSK1. 1 Publication1

Organism-specific databases

DisGeNETi8338
OpenTargetsiENSG00000184260
PharmGKBiPA29115

Polymorphism and mutation databases

BioMutaiHIST2H2AC
DMDMi47117890

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemoved2 Publications
ChainiPRO_00000552382 – 129Histone H2A type 2-CAdd BLAST128

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei2N-acetylserine2 Publications1
Modified residuei2Phosphoserine; by RPS6KA5By similarity1
Modified residuei4Citrulline; alternate1 Publication1
Modified residuei4Symmetric dimethylarginine; by PRMT5; alternateBy similarity1
Modified residuei6N6-(2-hydroxyisobutyryl)lysine; alternate1 Publication1
Modified residuei6N6-acetyllysine; alternate1 Publication1
Modified residuei10N6-(2-hydroxyisobutyryl)lysine; alternate1 Publication1
Modified residuei10N6-(beta-hydroxybutyryl)lysine; alternate1 Publication1
Modified residuei10N6-succinyllysine; alternate1 Publication1
Modified residuei14N6-(beta-hydroxybutyryl)lysine; alternate1 Publication1
Cross-linki14Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin); alternate2 Publications
Cross-linki16Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin)2 Publications
Modified residuei37N6-(2-hydroxyisobutyryl)lysine; alternate1 Publication1
Modified residuei37N6-(beta-hydroxybutyryl)lysine; alternate1 Publication1
Modified residuei37N6-crotonyllysine; alternate1 Publication1
Modified residuei75N6-(2-hydroxyisobutyryl)lysine1 Publication1
Modified residuei76N6-(2-hydroxyisobutyryl)lysine1 Publication1
Modified residuei96N6-(2-hydroxyisobutyryl)lysine; alternate1 Publication1
Modified residuei96N6-(beta-hydroxybutyryl)lysine; alternate1 Publication1
Modified residuei96N6-succinyllysine; alternate1 Publication1
Modified residuei105N5-methylglutamine1 Publication1
Modified residuei119N6-(2-hydroxyisobutyryl)lysine; alternate1 Publication1
Modified residuei119N6-(beta-hydroxybutyryl)lysine; alternate1 Publication1
Modified residuei119N6-crotonyllysine; alternate1 Publication1
Modified residuei120N6-crotonyllysine; alternate1 Publication1
Cross-linki120Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin); alternate4 Publications
Modified residuei121Phosphothreonine; by DCAF1Combined sources2 Publications1
Modified residuei123PhosphoserineCombined sources1
Modified residuei125N6-crotonyllysine1 Publication1

Post-translational modificationi

Deiminated on Arg-4 in granulocytes upon calcium entry.1 Publication
Monoubiquitination of Lys-120 (H2AK119Ub) by RING1, TRIM27 and RNF2/RING2 complex gives a specific tag for epigenetic transcriptional repression and participates in X chromosome inactivation of female mammals. It is involved in the initiation of both imprinted and random X inactivation. Ubiquitinated H2A is enriched in inactive X chromosome chromatin. Ubiquitination of H2A functions downstream of methylation of 'Lys-27' of histone H3 (H3K27me). H2AK119Ub by RNF2/RING2 can also be induced by ultraviolet and may be involved in DNA repair. Monoubiquitination of Lys-120 (H2AK119Ub) by TRIM27 may promote transformation of cells in a number of breast cancers (PubMed:25470042). Following DNA double-strand breaks (DSBs), it is ubiquitinated through 'Lys-63' linkage of ubiquitin moieties by the E2 ligase UBE2N and the E3 ligases RNF8 and RNF168, leading to the recruitment of repair proteins to sites of DNA damage. Ubiquitination at Lys-14 and Lys-16 (H2AK13Ub and H2AK15Ub, respectively) in response to DNA damage is initiated by RNF168 that mediates monoubiquitination at these 2 sites, and 'Lys-63'-linked ubiquitin are then conjugated to monoubiquitin; RNF8 is able to extend 'Lys-63'-linked ubiquitin chains in vitro. Deubiquitinated by USP51 at Lys-14 and Lys-16 (H2AK13Ub and H2AK15Ub, respectively) after damaged DNA is repaired (PubMed:27083998). H2AK119Ub and ionizing radiation-induced 'Lys-63'-linked ubiquitination (H2AK13Ub and H2AK15Ub) are distinct events.12 Publications
Phosphorylation on Ser-2 (H2AS1ph) is enhanced during mitosis. Phosphorylation on Ser-2 by RPS6KA5/MSK1 directly represses transcription. Acetylation of H3 inhibits Ser-2 phosphorylation by RPS6KA5/MSK1. Phosphorylation at Thr-121 (H2AT120ph) by DCAF1 is present in the regulatory region of many tumor suppresor genes and down-regulates their transcription.5 Publications
Symmetric dimethylation on Arg-4 by the PRDM1/PRMT5 complex may play a crucial role in the germ-cell lineage.By similarity
Glutamine methylation at Gln-105 (H2AQ104me) by FBL is specifically dedicated to polymerase I. It is present at 35S ribosomal DNA locus and impairs binding of the FACT complex (PubMed:24352239).1 Publication
Crotonylation (Kcr) is specifically present in male germ cells and marks testis-specific genes in post-meiotic cells, including X-linked genes that escape sex chromosome inactivation in haploid cells. Crotonylation marks active promoters and enhancers and confers resistance to transcriptional repressors. It is also associated with post-meiotically activated genes on autosomes.1 Publication

Keywords - PTMi

Acetylation, Citrullination, Hydroxylation, Isopeptide bond, Methylation, Phosphoprotein, Ubl conjugation

Proteomic databases

EPDiQ16777
MaxQBiQ16777
PaxDbiQ16777
PeptideAtlasiQ16777
PRIDEiQ16777
TopDownProteomicsiQ16777

PTM databases

iPTMnetiQ16777
PhosphoSitePlusiQ16777
SwissPalmiQ16777

Expressioni

Gene expression databases

BgeeiENSG00000184260
CleanExiHS_HIST2H2AC

Organism-specific databases

HPAiHPA041189

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.

GO - Molecular functioni

Protein-protein interaction databases

BioGridi113934113 interactors.
CORUMiQ16777
IntActiQ16777 18 interactors.
STRINGi9606.ENSP00000332194

Structurei

3D structure databases

ProteinModelPortaliQ16777
SMRiQ16777
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the histone H2A family.Curated

Phylogenomic databases

eggNOGiKOG1756 Eukaryota
COG5262 LUCA
GeneTreeiENSGT00910000143981
HOGENOMiHOG000234652
HOVERGENiHBG009342
InParanoidiQ16777
KOiK11251
OMAiESHHNAK
OrthoDBiEOG091G0XGD
PhylomeDBiQ16777
TreeFamiTF300137

Family and domain databases

CDDicd00074 H2A, 1 hit
Gene3Di1.10.20.101 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

Sequencei

Sequence statusi: Complete.

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

Q16777-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSGRGKQGGK ARAKAKSRSS RAGLQFPVGR VHRLLRKGNY AERVGAGAPV
60 70 80 90 100
YMAAVLEYLT AEILELAGNA ARDNKKTRII PRHLQLAIRN DEELNKLLGK
110 120
VTIAQGGVLP NIQAVLLPKK TESHKAKSK
Length:129
Mass (Da):13,988
Last modified:January 23, 2007 - v4
Checksum:i358AE20D1C531724
GO

Mass spectrometryi

Molecular mass is 13890.8 Da from positions 2 - 129. Determined by ESI. Monoisotopic with N-acetylserine.1 Publication

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AY131973 Genomic DNA Translation: AAN59959.1
AY648852 Genomic DNA Translation: AAT68255.1
AL591493 Genomic DNA Translation: CAI12569.1
BC060324 mRNA Translation: AAH60324.1
X57985 Genomic DNA Translation: CAA41050.1
CCDSiCCDS937.1
PIRiI37466
RefSeqiNP_003508.1, NM_003517.2
UniGeneiHs.408067

Genome annotation databases

EnsembliENST00000331380; ENSP00000332194; ENSG00000184260
GeneIDi8338
KEGGihsa:8338
UCSCiuc001etd.4 human

Similar proteinsi

Entry informationi

Entry nameiH2A2C_HUMAN
AccessioniPrimary (citable) accession number: Q16777
Secondary accession number(s): Q6DRA7, Q8IUE5
Entry historyiIntegrated into UniProtKB/Swiss-Prot: January 24, 2001
Last sequence update: January 23, 2007
Last modified: March 28, 2018
This is version 174 of the entry and version 4 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome