| Immunogen | ImmunogenusedwasabranchedpeptidecorrespondingtotheubiquitinationsiteonhumanH2B. |
| Epitope | UbiquitylLys120 |
| Clone | clone56 |
| Concentration | PleaserefertotheCertificateofAnalysisforthelot-specificconcentration. |
| Host | Mouse |
| Specificity | RecognizeshistoneH2BwhenitisubiquitinatedatLys120butnotH2Binitsunmodifiedstate,orubiquitinunconjugatedtoH2B.Mr~25kDa. |
| Isotype | IgG2aκ |
| SpeciesReactivity | |
| SpeciesReactivityNote | Basedonsequencehomology,broadspeciescross-reactivityisexpected. |
| AntibodyType | MonoclonalAntibody |
| EntrezGeneNumber | |
| EntrezGeneSummary | HistonesarebasicnuclearproteinsthatareresponsIBLeforthenucleosomestructureofthechromosomalfiberineukaryotes.Nucleosomesconsistofapproximately146bpofDNAwrappedaroundahistoneoctamercomposedofpairsofeachofthefourcorehistones(H2A,H2B,H3,andH4).Thechromatinfiberisfurthercompactedthroughtheinteractionofalinkerhistone,H1,withtheDNAbetweenthenucleosomestoformhigherorderchromatinstructures.ThisgeneisintronlessandencodesamemberofthehistoneH2Bfamily.TranscriptsfromthisgenelackpolyAtails;instead,theycontainapalindromicterminationelement. |
| Modifications | |
| PurificationMethod | ProteinGPurified |
| 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.
Post-translationalmodification:MonoubiquitinationofLys-120bytheRNF20/40complexgivesaspecifictagforepigenetictranscriptionalactivationandisalsoprerequisiteforhistoneH3"Lys-4"and"Lys-79"methylation.ItalsofunctionscooperativelywiththeFACTdimertostimulateelongationbyRNApolymeraseII.
|
| MolecularWeight | ~25kDa |