ID   H2A1_LILLO              Reviewed;         110 AA.
AC   Q9XG56;
DT   27-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1999, sequence version 1.
DT   03-AUG-2022, entry version 65.
DE   RecName: Full=Histone H2A.1;
DE   AltName: Full=GcH2A;
GN   Name=gcH2A;
OS   Lilium longiflorum (Trumpet lily).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Liliales; Liliaceae; Lilium.
OX   NCBI_TaxID=4690;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA], TISSUE SPECIFICITY, AND DEVELOPMENTAL STAGE.
RX   PubMed=10092186; DOI=10.1023/a:1006162120037;
RA   Xu H., Swoboda I., Bhalla P.L., Singh M.B.;
RT   "Male gametic cell-specific expression of H2A and H3 histone genes.";
RL   Plant Mol. Biol. 39:607-614(1999).
CC   -!- FUNCTION: Core component of nucleosome. Nucleosomes wrap and compact
CC       DNA into chromatin, limiting DNA accessibility to the cellular
CC       machineries which require DNA as a template. Histones thereby play a
CC       central role in transcription regulation, DNA repair, DNA replication
CC       and chromosomal stability. DNA accessibility is regulated via a complex
CC       set of post-translational modifications of histones, also called
CC       histone 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 {ECO:0000250}. Chromosome {ECO:0000250}.
CC   -!- TISSUE SPECIFICITY: Expressed in the generative cell within the
CC       bicellular pollen. Not detected in other reproductive or vegetative
CC       tissues. {ECO:0000269|PubMed:10092186}.
CC   -!- DEVELOPMENTAL STAGE: Associated with the differentiation of male
CC       gametic cells during pollen maturation. {ECO:0000269|PubMed:10092186}.
CC   -!- SIMILARITY: Belongs to the histone H2A family. {ECO:0000305}.
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DR   EMBL; AJ010974; CAB40356.1; -; mRNA.
DR   AlphaFoldDB; Q9XG56; -.
DR   SMR; Q9XG56; -.
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; IEA:UniProtKB-KW.
DR   GO; GO:0046982; F:protein heterodimerization activity; IEA:InterPro.
DR   GO; GO:0030527; F:structural constituent of chromatin; IEA:InterPro.
DR   Gene3D; 1.10.20.10; -; 1.
DR   InterPro; IPR009072; Histone-fold.
DR   InterPro; IPR002119; Histone_H2A.
DR   InterPro; IPR007125; Histone_H2A/H2B/H3.
DR   PANTHER; PTHR23430; PTHR23430; 1.
DR   Pfam; PF00125; Histone; 1.
DR   PRINTS; PR00620; HISTONEH2A.
DR   SMART; SM00414; H2A; 1.
DR   SUPFAM; SSF47113; SSF47113; 1.
PE   2: Evidence at transcript level;
KW   Chromosome; DNA-binding; Nucleosome core; Nucleus.
FT   CHAIN           1..110
FT                   /note="Histone H2A.1"
FT                   /id="PRO_0000240653"
SQ   SEQUENCE   110 AA;  12173 MW;  66532B57CB76A860 CRC64;
     MISSANNKGA GTSRRKLRSE KAALQFSVSR VEYSLKKGRY CRRLGATAPV YLAAVLENLV
     AEVLDMAANV TEETSPIVIK PRHIMLAPRN DVEVEQAVSR CHHLGIRCRP