ID   H2B_ASPOR               Reviewed;         141 AA.
AC   Q2U5A9;
DT   11-JUL-2006, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   03-AUG-2022, entry version 88.
DE   RecName: Full=Histone H2B;
GN   Name=htb1; ORFNames=AO090020000006;
OS   Aspergillus oryzae (strain ATCC 42149 / RIB 40) (Yellow koji mold).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC   Eurotiomycetidae; Eurotiales; Aspergillaceae; Aspergillus;
OC   Aspergillus subgen. Circumdati.
OX   NCBI_TaxID=510516;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 42149 / RIB 40;
RX   PubMed=16372010; DOI=10.1038/nature04300;
RA   Machida M., Asai K., Sano M., Tanaka T., Kumagai T., Terai G., Kusumoto K.,
RA   Arima T., Akita O., Kashiwagi Y., Abe K., Gomi K., Horiuchi H.,
RA   Kitamoto K., Kobayashi T., Takeuchi M., Denning D.W., Galagan J.E.,
RA   Nierman W.C., Yu J., Archer D.B., Bennett J.W., Bhatnagar D.,
RA   Cleveland T.E., Fedorova N.D., Gotoh O., Horikawa H., Hosoyama A.,
RA   Ichinomiya M., Igarashi R., Iwashita K., Juvvadi P.R., Kato M., Kato Y.,
RA   Kin T., Kokubun A., Maeda H., Maeyama N., Maruyama J., Nagasaki H.,
RA   Nakajima T., Oda K., Okada K., Paulsen I., Sakamoto K., Sawano T.,
RA   Takahashi M., Takase K., Terabayashi Y., Wortman J.R., Yamada O.,
RA   Yamagata Y., Anazawa H., Hata Y., Koide Y., Komori T., Koyama Y.,
RA   Minetoki T., Suharnan S., Tanaka A., Isono K., Kuhara S., Ogasawara N.,
RA   Kikuchi H.;
RT   "Genome sequencing and analysis of Aspergillus oryzae.";
RL   Nature 438:1157-1161(2005).
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 the ubc2-bre1 complex to form H2BK123ub1.
CC       H2BK123ub1 gives a specific tag for epigenetic transcriptional
CC       activation and is also prerequisite for H3K4me and H3K79me formation.
CC       H2BK123ub1 also modulates the formation of double-strand breaks during
CC       meiosis and is a prerequisite for DNA-damage checkpoint activation (By
CC       similarity). {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 or H2BK7su, and probably also H2BK16su
CC       or H2BK17su, occurs preferentially near the telomeres and represses
CC       gene 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-8; H2BK6su = sumoylated Lys-8; H2BK7ac = acetylated Lys-
CC       9; H2BK7su = sumoylated Lys-9; H2BK11ac = acetylated Lys-15; H2BK16ac =
CC       acetylated Lys-26; H2BK16su = sumoylated Lys-26; H2BK17su = sumoylated
CC       Lys-27; H2BK123ub1 = monoubiquitinated Lys-135. {ECO:0000305}.
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DR   EMBL; AP007167; BAE63256.1; -; Genomic_DNA.
DR   RefSeq; XP_001824389.2; XM_001824337.2.
DR   AlphaFoldDB; Q2U5A9; -.
DR   SMR; Q2U5A9; -.
DR   STRING; 510516.Q2U5A9; -.
DR   VEuPathDB; FungiDB:AO090020000006; -.
DR   OMA; DIFDRMA; -.
DR   Proteomes; UP000006564; Chromosome 6.
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; 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; 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..141
FT                   /note="Histone H2B"
FT                   /id="PRO_0000245292"
FT   REGION          1..49
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        21..49
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   MOD_RES         8
FT                   /note="N6-acetyllysine; alternate"
FT                   /evidence="ECO:0000250"
FT   MOD_RES         9
FT                   /note="N6-acetyllysine; alternate"
FT                   /evidence="ECO:0000250"
FT   MOD_RES         15
FT                   /note="N6-acetyllysine"
FT                   /evidence="ECO:0000250"
FT   MOD_RES         26
FT                   /note="N6-acetyllysine; alternate"
FT                   /evidence="ECO:0000250"
FT   CROSSLNK        8
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in SUMO); alternate"
FT                   /evidence="ECO:0000250"
FT   CROSSLNK        9
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in SUMO); alternate"
FT                   /evidence="ECO:0000250"
FT   CROSSLNK        26
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in SUMO); alternate"
FT                   /evidence="ECO:0000250"
FT   CROSSLNK        27
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in SUMO)"
FT                   /evidence="ECO:0000250"
FT   CROSSLNK        135
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in ubiquitin)"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   141 AA;  14972 MW;  B0D04961FCE852B2 CRC64;
     MAPKAAEKKP STGGKAPAGG KAPAEKKEAG KKTAAAASGD KKKRGKTRKE TYSSYIYKVL
     KQVHPDTGIS TRAMSILNSF VNDIFERVAT EASKLAAYNK KSTISSREIQ TSVRLILPGE
     LAKHAVSEGT KAVTKYSSSA K