Immunogen | ImmunogenusedwasabranchedpeptidecorrespondingtotheubiquitinationsiteonhumanhistoneH2B. |
Epitope | Lys120ubiquitinationsite |
Clone | Clone56 |
Host | Mouse |
Specificity | RecognizeshistoneH2Bubiquitinatedonlysine120butnotfreeubiquitinorhistoneH2Binitsunmodifiedstate. |
Isotype | IgG2aκ |
SpeciesReactivity | - Mouse
- Human
- Vertebrates
- Rat
- GreenPlants
|
SpeciesReactivityNote | Human,mouse,rat.Nottestedinotherspecies.Theimmunogensequenceisidenticalinawiderangeofanimalandplantspecies,sobroadcross-reactivityisexpected. |
AntibodyType | MonoclonalAntibody |
EntrezGeneNumber | |
EntrezGeneSummary | HistonesarebasicnuclearproteinsthatareresponsIBLeforthenucleosomestructureofthechromosomalfiberineukaryotes.Twomoleculesofeachofthefourcorehistones(H2A,H2B,H3,andH4)formanoctamer,aroundwhichapproximately146bpofDNAiswrappedinrepeatingunits,callednucleosomes.Thelinkerhistone,H1,interactswithlinkerDNAbetweennucleosomesandfunctionsinthecompactionofchromatinintohigherorderstructures.ThisgeneencodesamemberofthehistoneH2Bfamily,andgeneratestwotranscriptsthroughtheuseoftheconservedstem-loopterminationmotif,andthepolyAadditionmotif.[providedbyRefSeq]
|
GeneSymbol | - H2B.1
- H2B.a/g/h/k/l
- H2B/a
- H2B/g
- H2B/h
- H2B/k
- H2B/l
- H2BFA
- H2BFG
- H2BFH
- H2BFK
- H2BFL
|
Modifications | |
UniProtNumber | |
UniProtSummary | FUNCTION:Corecomponentofnucleosome.NucleosomeswrapandcompactDNAintochromatin,limitingDNAaccessibilitytothecellularmachinerieswhichrequireDNAasatemplate.Histonestherebyplayacentralroleintranscriptionregulation,DNArepair,DNAreplicationandchromosomalstABIlity.DNAaccessibilityisregulatedviaacomplexsetofpost-translationalmodificationsofhistones,alsocalledhistonecode,andnucleosomeremodeling.
Hasbroadantibacterialactivity.Maycontributetotheformationofthefunctionalantimicrobialbarrierofthecolonicepithelium,andtothebactericidalactivityofamnioticfluid.
SUBUNITSTRUCTURE:ThenucleosomeisahistoneoctamercontainingtwomoleculeseachofH2A,H2B,H3andH4assembledinoneH3-H4heterotetramerandtwoH2A-H2Bheterodimers.Theoctamerwrapsapproximately147bpofDNA.
SUBCELLULARLOCATION:Nucleus.
PTM:MonoubiquitinationofLys-120bytheRNF20/40complexgivesaspecifictagforepigenetictranscriptionalactivationandisalsoprerequisiteforhistoneH3"Lys-4"and"Lys-79"methylation.ItalsofunctionscooperativelywiththeFACTdimertostimulateelongationbyRNApolymeraseII.
PhosphorylatedonSer-15bySTK4/MST1duringapoptosis;whichfacilitatesapoptoticchromatincondensation.AlsophosphorylatedonSer-15inresponsetoDNAdoublestrandbreaks(DSBs),andincorrelationwithsomatichypermutationandimmunoglobulinclass-switchrecombination.
SEQUENCESIMILARITY:BelongstothehistoneH2Bfamily.
|
MolecularWeight | ~25kDa |