ID   H4_STYLE                Reviewed;         104 AA.
AC   P62791; P18836;
DT   16-AUG-2004, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 2.
DT   03-AUG-2022, entry version 67.
DE   RecName: Full=Histone H4;
OS   Stylonychia lemnae (Ciliate).
OC   Eukaryota; Sar; Alveolata; Ciliophora; Intramacronucleata; Spirotrichea;
OC   Stichotrichia; Sporadotrichida; Oxytrichidae; Stylonychinae; Stylonychia.
OX   NCBI_TaxID=5949;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=EK16Sp;
RX   PubMed=2132956; DOI=10.3109/10425179009041344;
RA   Wefes I., Lipps H.J.;
RT   "The two macronuclear histone H4 genes of the hypotrichous ciliate
RT   Stylonychia lemnae.";
RL   DNA Seq. 1:25-32(1990).
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   -!- SIMILARITY: Belongs to the histone H4 family. {ECO:0000305}.
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DR   EMBL; X16018; CAA34151.1; -; Genomic_DNA.
DR   EMBL; X16019; CAA34152.1; -; Genomic_DNA.
DR   PIR; S14184; S14184.
DR   PIR; S14185; S14185.
DR   AlphaFoldDB; P62791; -.
DR   SMR; P62791; -.
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   CDD; cd00076; H4; 1.
DR   Gene3D; 1.10.20.10; -; 1.
DR   InterPro; IPR035425; CENP-T/H4_C.
DR   InterPro; IPR009072; Histone-fold.
DR   InterPro; IPR001951; Histone_H4.
DR   InterPro; IPR019809; Histone_H4_CS.
DR   Pfam; PF15511; CENP-T_C; 1.
DR   PRINTS; PR00623; HISTONEH4.
DR   SMART; SM00417; H4; 1.
DR   SUPFAM; SSF47113; SSF47113; 1.
DR   PROSITE; PS00047; HISTONE_H4; 1.
PE   3: Inferred from homology;
KW   Chromosome; DNA-binding; Nucleosome core; Nucleus.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000305"
FT   CHAIN           2..104
FT                   /note="Histone H4"
FT                   /id="PRO_0000158363"
FT   REGION          1..21
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   104 AA;  11624 MW;  21C49E6CBF95F49C CRC64;
     MAGRGKVGKG YGKVGAKRHT KKSLKETIMG ITKPAIRRLA RRGGVKRISS LIYEETRNVL
     RSFLENVIRD SVTYTEHAKR KTVTALDVVY ALKRQGRTLY GFGG