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Protein

Histone H2B type 2-B

Gene

Hist2h2bb

Organism
Mus musculus (Mouse)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling.

GO - Molecular functioni

  • DNA binding Source: GO_Central
  • protein heterodimerization activity Source: InterPro

GO - Biological processi

Keywordsi

Molecular functionDNA-binding

Enzyme and pathway databases

ReactomeiR-MMU-3214815 HDACs deacetylate histones
R-MMU-3214847 HATs acetylate histones

Names & Taxonomyi

Protein namesi
Recommended name:
Histone H2B type 2-B
Alternative name(s):
H2b 616
Gene namesi
OrganismiMus musculus (Mouse)
Taxonomic identifieri10090 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeMusMus
Proteomesi
  • UP000000589 Componenti: Chromosome 3

Organism-specific databases

MGIiMGI:2448413 Hist2h2bb

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Chromosome, Nucleosome core, Nucleus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemovedCombined sources
ChainiPRO_00002448352 – 126Histone H2B type 2-BAdd BLAST125

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei2N-acetylprolineCombined sources1
Modified residuei6N6-(2-hydroxyisobutyryl)lysine; alternate1 Publication1
Modified residuei6N6-(beta-hydroxybutyryl)lysine; alternate1 Publication1
Modified residuei6N6-acetyllysine; alternateCombined sources1
Modified residuei6N6-butyryllysine; alternateBy similarity1
Modified residuei6N6-crotonyllysine; alternate1 Publication1
Cross-linki6Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2); alternateBy similarity
Modified residuei12N6-(beta-hydroxybutyryl)lysine; alternate1 Publication1
Modified residuei12N6-acetyllysine; alternateCombined sources1
Modified residuei12N6-crotonyllysine; alternate1 Publication1
Modified residuei13N6-(2-hydroxyisobutyryl)lysine; alternate1 Publication1
Modified residuei13N6-acetyllysine; alternateBy similarity1
Modified residuei13N6-crotonyllysine; alternate1 Publication1
Modified residuei15Phosphoserine; by STK4/MST12 Publications1
Modified residuei16N6-acetyllysine; alternateBy similarity1
Modified residuei16N6-crotonyllysine; alternate1 Publication1
Modified residuei17N6-acetyllysine; alternateCombined sources1
Modified residuei17N6-crotonyllysine; alternate1 Publication1
Modified residuei21N6-(2-hydroxyisobutyryl)lysine; alternate1 Publication1
Modified residuei21N6-(beta-hydroxybutyryl)lysine; alternate1 Publication1
Modified residuei21N6-acetyllysine; alternateCombined sources1
Modified residuei21N6-butyryllysine; alternateBy similarity1
Modified residuei21N6-crotonyllysine; alternate1 Publication1
Cross-linki21Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2); alternateBy similarity
Modified residuei24N6-(2-hydroxyisobutyryl)lysine; alternate1 Publication1
Modified residuei24N6-acetyllysine; alternateBy similarity1
Modified residuei24N6-crotonyllysine; alternate1 Publication1
Modified residuei25N6-(2-hydroxyisobutyryl)lysine1 Publication1
Modified residuei35N6-(2-hydroxyisobutyryl)lysine; alternate1 Publication1
Modified residuei35N6-(beta-hydroxybutyryl)lysine; alternate1 Publication1
Modified residuei35N6-crotonyllysine; alternate1 Publication1
Modified residuei35N6-succinyllysine; alternateBy similarity1
Cross-linki35Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin); alternateBy similarity
Modified residuei37Phosphoserine; by AMPK1 Publication1
Modified residuei44N6-(2-hydroxyisobutyryl)lysine1 Publication1
Modified residuei47N6-(2-hydroxyisobutyryl)lysine; alternate1 Publication1
Modified residuei47N6-methyllysine; alternateBy similarity1
Modified residuei58N6,N6-dimethyllysine; alternateBy similarity1
Modified residuei58N6-(2-hydroxyisobutyryl)lysine; alternate1 Publication1
Modified residuei80Dimethylated arginineBy similarity1
Modified residuei86N6,N6,N6-trimethyllysine; alternateBy similarity1
Modified residuei86N6-(2-hydroxyisobutyryl)lysine; alternate1 Publication1
Modified residuei86N6-acetyllysine; alternateBy similarity1
Modified residuei87Omega-N-methylarginineBy similarity1
Modified residuei93Omega-N-methylarginineBy similarity1
Modified residuei109N6-(2-hydroxyisobutyryl)lysine; alternate1 Publication1
Modified residuei109N6-(beta-hydroxybutyryl)lysine; alternate1 Publication1
Modified residuei109N6-methyllysine; alternateBy similarity1
Modified residuei116PhosphothreonineBy similarity1
Modified residuei117N6-(2-hydroxyisobutyryl)lysine; alternate1 Publication1
Modified residuei117N6-(beta-hydroxybutyryl)lysine; alternate1 Publication1
Modified residuei117N6-methylated lysine; alternateBy similarity1
Modified residuei117N6-succinyllysine; alternateBy similarity1
Modified residuei121N6-(2-hydroxyisobutyryl)lysine; alternate1 Publication1
Modified residuei121N6-succinyllysine; alternate1 Publication1
Cross-linki121Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin); alternateBy similarity

Post-translational modificationi

Monoubiquitination at Lys-35 (H2BK34Ub) by the MSL1/MSL2 dimer is required for histone H3 'Lys-4' (H3K4me) and 'Lys-79' (H3K79me) methylation and transcription activation at specific gene loci, such as HOXA9 and MEIS1 loci. Similarly, monoubiquitination at Lys-121 (H2BK120Ub) by the RNF20/40 complex gives a specific tag for epigenetic transcriptional activation and is also prerequisite for histone H3 'Lys-4' and 'Lys-79' methylation. It also functions cooperatively with the FACT dimer to stimulate elongation by RNA polymerase II. H2BK120Ub also acts as a regulator of mRNA splicing: deubiquitination by USP49 is required for efficient cotranscriptional splicing of a large set of exons (By similarity).By similarity
Phosphorylated on Ser-15 (H2BS14ph) by STK4/MST1 during apoptosis; which facilitates apoptotic chromatin condensation. Also phosphorylated on Ser-15 in response to DNA double strand breaks (DSBs), and in correlation with somatic hypermutation and immunoglobulin class-switch recombination. Phosphorylation at Ser-37 (H2BS36ph) by AMPK in response to stress promotes transcription.3 Publications
Crotonylation (Kcr) is specifically present in male germ cells and marks testis-specific genes in post-meiotic cells, including X-linked genes that escape sex chromosome inactivation in haploid cells. Crotonylation marks active promoters and enhancers and confers resistance to transcriptional repressors. It is also associated with post-meiotically activated genes on autosomes.1 Publication
Hydroxybutyrylation of histones is induced by starvation.1 Publication

Keywords - PTMi

Acetylation, Hydroxylation, Isopeptide bond, Methylation, Phosphoprotein, Ubl conjugation

Proteomic databases

MaxQBiQ64525
PaxDbiQ64525
PeptideAtlasiQ64525
PRIDEiQ64525
TopDownProteomicsiQ64525

PTM databases

iPTMnetiQ64525
PhosphoSitePlusiQ64525

Expressioni

Gene expression databases

BgeeiENSMUSG00000105827 Expressed in 20 organ(s), highest expression level in bone marrow

Interactioni

Subunit structurei

The nucleosome is a histone octamer containing two molecules each of H2A, H2B, H3 and H4 assembled in one H3-H4 heterotetramer and two H2A-H2B heterodimers. The octamer wraps approximately 147 bp of DNA.

GO - Molecular functioni

Protein-protein interaction databases

BioGridi235108, 8 interactors
IntActiQ64525, 1 interactor
STRINGi10090.ENSMUSP00000135427

Structurei

3D structure databases

ProteinModelPortaliQ64525
SMRiQ64525
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the histone H2B family.Curated

Phylogenomic databases

eggNOGiKOG1744 Eukaryota
ENOG4111NV5 LUCA
GeneTreeiENSGT00760000118976
HOVERGENiHBG007774
InParanoidiQ64525
KOiK11252
OMAiASYNHRS
OrthoDBiEOG091G0XGD
TreeFamiTF300212

Family and domain databases

Gene3Di1.10.20.10, 1 hit
InterProiView protein in InterPro
IPR009072 Histone-fold
IPR007125 Histone_H2A/H2B/H3
IPR000558 Histone_H2B
PANTHERiPTHR23428 PTHR23428, 1 hit
PfamiView protein in Pfam
PF00125 Histone, 1 hit
PRINTSiPR00621 HISTONEH2B
SMARTiView protein in SMART
SM00427 H2B, 1 hit
SUPFAMiSSF47113 SSF47113, 1 hit
PROSITEiView protein in PROSITE
PS00357 HISTONE_H2B, 1 hit

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q64525-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MPDPAKSAPA PKKGSKKAVT KVQKKDGKKR KRSRKESYSV YVYKVLKQVH
60 70 80 90 100
PDTGISSKAM GIMNSFVNDI FERIAGEASR LAHYNKRSTI TSREIQTAVR
110 120
LLLPGELAKH AVSEGTKAVT KYTSSK
Length:126
Mass (Da):13,920
Last modified:January 23, 2007 - v3
Checksum:iE951DF3D7E97C106
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U62675 Genomic DNA Translation: AAB04773.1
AK134918 mRNA No translation available.
CCDSiCCDS57243.1
RefSeqiNP_783597.2, NM_175666.2
UniGeneiMm.297655
Mm.451071

Genome annotation databases

EnsembliENSMUST00000177113; ENSMUSP00000135427; ENSMUSG00000105827
GeneIDi319189
KEGGimmu:319189
UCSCiuc008qmp.1 mouse

Similar proteinsi

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U62675 Genomic DNA Translation: AAB04773.1
AK134918 mRNA No translation available.
CCDSiCCDS57243.1
RefSeqiNP_783597.2, NM_175666.2
UniGeneiMm.297655
Mm.451071

3D structure databases

ProteinModelPortaliQ64525
SMRiQ64525
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi235108, 8 interactors
IntActiQ64525, 1 interactor
STRINGi10090.ENSMUSP00000135427

PTM databases

iPTMnetiQ64525
PhosphoSitePlusiQ64525

Proteomic databases

MaxQBiQ64525
PaxDbiQ64525
PeptideAtlasiQ64525
PRIDEiQ64525
TopDownProteomicsiQ64525

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENSMUST00000177113; ENSMUSP00000135427; ENSMUSG00000105827
GeneIDi319189
KEGGimmu:319189
UCSCiuc008qmp.1 mouse

Organism-specific databases

CTDi338391
MGIiMGI:2448413 Hist2h2bb

Phylogenomic databases

eggNOGiKOG1744 Eukaryota
ENOG4111NV5 LUCA
GeneTreeiENSGT00760000118976
HOVERGENiHBG007774
InParanoidiQ64525
KOiK11252
OMAiASYNHRS
OrthoDBiEOG091G0XGD
TreeFamiTF300212

Enzyme and pathway databases

ReactomeiR-MMU-3214815 HDACs deacetylate histones
R-MMU-3214847 HATs acetylate histones

Miscellaneous databases

PROiPR:Q64525
SOURCEiSearch...

Gene expression databases

BgeeiENSMUSG00000105827 Expressed in 20 organ(s), highest expression level in bone marrow

Family and domain databases

Gene3Di1.10.20.10, 1 hit
InterProiView protein in InterPro
IPR009072 Histone-fold
IPR007125 Histone_H2A/H2B/H3
IPR000558 Histone_H2B
PANTHERiPTHR23428 PTHR23428, 1 hit
PfamiView protein in Pfam
PF00125 Histone, 1 hit
PRINTSiPR00621 HISTONEH2B
SMARTiView protein in SMART
SM00427 H2B, 1 hit
SUPFAMiSSF47113 SSF47113, 1 hit
PROSITEiView protein in PROSITE
PS00357 HISTONE_H2B, 1 hit
ProtoNetiSearch...

Entry informationi

Entry nameiH2B2B_MOUSE
AccessioniPrimary (citable) accession number: Q64525
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 11, 2006
Last sequence update: January 23, 2007
Last modified: November 7, 2018
This is version 144 of the entry and version 3 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
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Main funding by: National Institutes of Health

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