ID   H2B_PHANO               Reviewed;         140 AA.
AC   Q0U1A0;
DT   21-AUG-2007, integrated into UniProtKB/Swiss-Prot.
DT   05-SEP-2006, sequence version 1.
DT   03-AUG-2022, entry version 76.
DE   RecName: Full=Histone H2B;
GN   Name=HTB1; ORFNames=SNOG_14612;
OS   Phaeosphaeria nodorum (strain SN15 / ATCC MYA-4574 / FGSC 10173) (Glume
OS   blotch fungus) (Parastagonospora nodorum).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Dothideomycetes;
OC   Pleosporomycetidae; Pleosporales; Pleosporineae; Phaeosphaeriaceae;
OC   Parastagonospora.
OX   NCBI_TaxID=321614;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SN15 / ATCC MYA-4574 / FGSC 10173;
RX   PubMed=18024570; DOI=10.1105/tpc.107.052829;
RA   Hane J.K., Lowe R.G.T., Solomon P.S., Tan K.-C., Schoch C.L.,
RA   Spatafora J.W., Crous P.W., Kodira C.D., Birren B.W., Galagan J.E.,
RA   Torriani S.F.F., McDonald B.A., Oliver R.P.;
RT   "Dothideomycete-plant interactions illuminated by genome sequencing and EST
RT   analysis of the wheat pathogen Stagonospora nodorum.";
RL   Plant Cell 19:3347-3368(2007).
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   -!- PTM: Monoubiquitinated by BRE1 to form H2BK123ub1. H2BK123ub1 gives a
CC       specific tag for epigenetic transcriptional activation and is also
CC       prerequisite for H3K4me and H3K79me formation. H2BK123ub1 also
CC       modulates the formation of double-strand breaks during meiosis and is a
CC       prerequisite for DNA-damage checkpoint activation (By similarity).
CC       {ECO:0000250}.
CC   -!- PTM: Acetylated by GCN5 to form H2BK11ac and H2BK16ac. H2BK16ac can
CC       also be formed by ESA1. Acetylation of N-terminal lysines and
CC       particularly formation of H2BK11acK16ac has a positive effect on
CC       transcription (By similarity). {ECO:0000250}.
CC   -!- PTM: Sumoylation to form H2BK6su and probably also H2BK16su or
CC       H2BK17su, occurs preferentially near the telomeres and represses gene
CC       transcription. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the histone H2B 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: H2BK6ac =
CC       acetylated Lys-7; H2BK6su = sumoylated Lys-7; H2BK11ac = acetylated
CC       Lys-14; H2BK16ac = acetylated Lys-24; H2BK16su = sumoylated Lys-24;
CC       H2BK17su = sumoylated Lys-25; H2BK123ub1 = monoubiquitinated Lys-134.
CC       {ECO:0000305}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CH445356; EAT78152.1; -; Genomic_DNA.
DR   RefSeq; XP_001804794.1; XM_001804742.1.
DR   AlphaFoldDB; Q0U1A0; -.
DR   SMR; Q0U1A0; -.
DR   STRING; 13684.SNOT_14612; -.
DR   PRIDE; Q0U1A0; -.
DR   EnsemblFungi; SNOT_14612; SNOT_14612; SNOG_14612.
DR   GeneID; 5981719; -.
DR   KEGG; pno:SNOG_14612; -.
DR   eggNOG; KOG1744; Eukaryota.
DR   HOGENOM; CLU_075666_1_3_1; -.
DR   InParanoid; Q0U1A0; -.
DR   OMA; DIFDRMA; -.
DR   OrthoDB; 1536672at2759; -.
DR   Proteomes; UP000001055; Unassembled WGS sequence.
DR   GO; GO:0000786; C:nucleosome; IEA:UniProtKB-KW.
DR   GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR   GO; GO:0035861; C:site of double-strand break; IEA:EnsemblFungi.
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:0006334; P:nucleosome assembly; IBA:GO_Central.
DR   Gene3D; 1.10.20.10; -; 1.
DR   InterPro; IPR009072; Histone-fold.
DR   InterPro; IPR007125; Histone_H2A/H2B/H3.
DR   InterPro; IPR000558; Histone_H2B.
DR   PANTHER; PTHR23428; PTHR23428; 1.
DR   Pfam; PF00125; Histone; 1.
DR   PRINTS; PR00621; HISTONEH2B.
DR   SMART; SM00427; H2B; 1.
DR   SUPFAM; SSF47113; SSF47113; 1.
DR   PROSITE; PS00357; HISTONE_H2B; 1.
PE   3: Inferred from homology;
KW   Acetylation; Chromosome; DNA-binding; Isopeptide bond; Nucleosome core;
KW   Nucleus; Reference proteome; Ubl conjugation.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000250"
FT   CHAIN           2..140
FT                   /note="Histone H2B"
FT                   /id="PRO_0000297851"
FT   REGION          1..47
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        19..47
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   MOD_RES         7
FT                   /note="N6-acetyllysine; alternate"
FT                   /evidence="ECO:0000250"
FT   MOD_RES         14
FT                   /note="N6-acetyllysine"
FT                   /evidence="ECO:0000250"
FT   MOD_RES         24
FT                   /note="N6-acetyllysine; alternate"
FT                   /evidence="ECO:0000250"
FT   CROSSLNK        7
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in SUMO); alternate"
FT                   /evidence="ECO:0000250"
FT   CROSSLNK        24
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in SUMO); alternate"
FT                   /evidence="ECO:0000250"
FT   CROSSLNK        25
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in SUMO)"
FT                   /evidence="ECO:0000250"
FT   CROSSLNK        134
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in ubiquitin)"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   140 AA;  15151 MW;  DA58C07328D133DF CRC64;
     MPPKAQKTPT TGGKAPAGKA PVEKKEAGKK TAAPSGEKKK RTKTRKETYS SYIYKVLKQV
     HPDTGISNRA MSILNSFVTT THIFERVATE ASKLAAYNKK STISSREIQT SVRLILPGEL
     AKHAVSEGTK AVTKYSSSTK