ID   H2A1_EREGS              Reviewed;         131 AA.
AC   Q74ZL4;
DT   31-AUG-2004, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   27-MAR-2024, entry version 99.
DE   RecName: Full=Histone H2A.1;
GN   Name=HTA1; OrderedLocusNames=AGR184W;
OS   Eremothecium gossypii (strain ATCC 10895 / CBS 109.51 / FGSC 9923 / NRRL
OS   Y-1056) (Yeast) (Ashbya gossypii).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC   Saccharomycetales; Saccharomycetaceae; Eremothecium.
OX   NCBI_TaxID=284811;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 10895 / CBS 109.51 / FGSC 9923 / NRRL Y-1056;
RX   PubMed=15001715; DOI=10.1126/science.1095781;
RA   Dietrich F.S., Voegeli S., Brachat S., Lerch A., Gates K., Steiner S.,
RA   Mohr C., Poehlmann R., Luedi P., Choi S., Wing R.A., Flavier A.,
RA   Gaffney T.D., Philippsen P.;
RT   "The Ashbya gossypii genome as a tool for mapping the ancient Saccharomyces
RT   cerevisiae genome.";
RL   Science 304:304-307(2004).
RN   [2]
RP   GENOME REANNOTATION.
RC   STRAIN=ATCC 10895 / CBS 109.51 / FGSC 9923 / NRRL Y-1056;
RX   PubMed=23749448; DOI=10.1534/g3.112.002881;
RA   Dietrich F.S., Voegeli S., Kuo S., Philippsen P.;
RT   "Genomes of Ashbya fungi isolated from insects reveal four mating-type
RT   loci, numerous translocations, lack of transposons, and distinct gene
RT   duplications.";
RL   G3 (Bethesda) 3:1225-1239(2013).
CC   -!- FUNCTION: Core component of nucleosome which plays a central role in
CC       DNA double strand break (DSB) repair. Nucleosomes wrap and compact DNA
CC       into chromatin, limiting DNA accessibility to the cellular machineries
CC       which require DNA as a template. Histones thereby play a central role
CC       in transcription regulation, DNA repair, DNA replication and
CC       chromosomal stability. DNA accessibility is regulated via a complex set
CC       of post-translational modifications of histones, also called histone
CC       code, and nucleosome remodeling.
CC   -!- SUBUNIT: The nucleosome is a histone octamer containing two molecules
CC       each of H2A, H2B, H3 and H4 assembled in one H3-H4 heterotetramer and
CC       two H2A-H2B heterodimers. The octamer wraps approximately 147 bp of
CC       DNA.
CC   -!- SUBCELLULAR LOCATION: Nucleus. Chromosome.
CC   -!- DOMAIN: The [ST]-Q motif constitutes a recognition sequence for kinases
CC       from the PI3/PI4-kinase family.
CC   -!- PTM: Phosphorylated to form H2AS128ph (gamma-H2A) in response to DNA
CC       double-strand breaks (DSBs) generated by exogenous genotoxic agents and
CC       by stalled replication forks. Phosphorylation is dependent on the DNA
CC       damage checkpoint kinases MEC1/ATR and TEL1/ATM, spreads on either side
CC       of a detected DSB site and may mark the surrounding chromatin for
CC       recruitment of proteins required for DNA damage signaling and repair.
CC       Gamma-H2A is removed from the DNA prior to the strand invasion-primer
CC       extension step of the repair process and subsequently dephosphorylated
CC       by PPH3, a component of the histone H2A phosphatase complex (HTP-C).
CC       Dephosphorylation is necessary for efficient recovery from the DNA
CC       damage checkpoint (By similarity). {ECO:0000250}.
CC   -!- PTM: Sumoylation on Lys-126 may lead to transcriptional repression.
CC       {ECO:0000250}.
CC   -!- PTM: Acetylated by ESA1 to form H2AK4ac and H2AK7ac. {ECO:0000250}.
CC   -!- MISCELLANEOUS: In contrast to vertebrates and insects, its C-terminus
CC       is not monoubiquitinated. {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the histone H2A family. {ECO:0000305}.
CC   -!- CAUTION: To ensure consistency between histone entries, we follow the
CC       'Brno' nomenclature for histone modifications, with positions referring
CC       to those used in the literature for the 'closest' model organism. Due
CC       to slight variations in histone sequences between organisms and to the
CC       presence of initiator methionine in UniProtKB/Swiss-Prot sequences, the
CC       actual positions of modified amino acids in the sequence generally
CC       differ. In this entry the following conventions are used: H2AK4ac =
CC       acetylated Lys-4; H2AK7ac = acetylated Lys-7; H2AS128ph =
CC       phosphorylated Ser-128. {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAS54674.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; AE016820; AAS54674.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; NP_986850.1; NM_211912.1.
DR   AlphaFoldDB; Q74ZL4; -.
DR   SMR; Q74ZL4; -.
DR   STRING; 284811.Q74ZL4; -.
DR   GeneID; 4623152; -.
DR   KEGG; ago:AGOS_AGR184W; -.
DR   InParanoid; Q74ZL4; -.
DR   OrthoDB; 235643at2759; -.
DR   Proteomes; UP000000591; Chromosome VII.
DR   GO; GO:0000786; C:nucleosome; IEA:UniProtKB-KW.
DR   GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR   GO; GO:0003677; F:DNA binding; IBA:GO_Central.
DR   GO; GO:0046982; F:protein heterodimerization activity; IEA:InterPro.
DR   GO; GO:0030527; F:structural constituent of chromatin; IEA:InterPro.
DR   GO; GO:0006281; P:DNA repair; IEA:UniProtKB-KW.
DR   CDD; cd00074; H2A; 1.
DR   Gene3D; 1.10.20.10; Histone, subunit A; 1.
DR   InterPro; IPR009072; Histone-fold.
DR   InterPro; IPR002119; Histone_H2A.
DR   InterPro; IPR007125; Histone_H2A/H2B/H3.
DR   InterPro; IPR032454; Histone_H2A_C.
DR   InterPro; IPR032458; Histone_H2A_CS.
DR   PANTHER; PTHR23430; HISTONE H2A; 1.
DR   PANTHER; PTHR23430:SF50; HISTONE H2A; 1.
DR   Pfam; PF00125; Histone; 1.
DR   Pfam; PF16211; Histone_H2A_C; 1.
DR   PRINTS; PR00620; HISTONEH2A.
DR   SMART; SM00414; H2A; 1.
DR   SUPFAM; SSF47113; Histone-fold; 1.
DR   PROSITE; PS00046; HISTONE_H2A; 1.
PE   3: Inferred from homology;
KW   Acetylation; Chromosome; DNA damage; DNA repair; DNA-binding;
KW   Isopeptide bond; Methylation; Nucleosome core; Nucleus; Phosphoprotein;
KW   Reference proteome; Ubl conjugation.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000250"
FT   CHAIN           2..131
FT                   /note="Histone H2A.1"
FT                   /id="PRO_0000055205"
FT   MOTIF           128..129
FT                   /note="[ST]-Q motif"
FT   SITE            119
FT                   /note="Not ubiquitinated"
FT                   /evidence="ECO:0000305"
FT   MOD_RES         2
FT                   /note="N-acetylserine"
FT                   /evidence="ECO:0000250"
FT   MOD_RES         4
FT                   /note="N6-acetyllysine"
FT                   /evidence="ECO:0000250"
FT   MOD_RES         7
FT                   /note="N6-acetyllysine"
FT                   /evidence="ECO:0000250"
FT   MOD_RES         105
FT                   /note="N5-methylglutamine"
FT                   /evidence="ECO:0000250"
FT   MOD_RES         128
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000250"
FT   CROSSLNK        126
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in SUMO)"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   131 AA;  13865 MW;  7849DC54E66539AA CRC64;
     MSGKGGKAGS AAKASQSRSA KAGLTFPVGR VHRLLRKGNY AQRIGSGAPV YMTAVLEYLA
     AEILELAGNA ARDNKKTRII PRHLQLAIRN DDELNKLLGN VTIAQGGVLP NIHANLLPKK
     SAKATKASQE L
//