Immunogen | KLH-conjugated,syntheticpeptide(CGG-SYLDSGIHSGATTTAPSLSGK)correspondingtotheconsensusGSK3phosphorylationsiteofhumanβ-Catenin(aminoacids29-49). |
Concentration | PleaserefertotheCertificateofAnalysisforthelot-specificconcentration. |
Host | Rabbit |
Specificity | Recognizesβ-Catenin,Mr92kDa. |
Isotype | IgG |
SpeciesReactivity | - Human
- Rat
- Mouse
- Rabbit
- Bovine
|
AntibodyType | PolyclonalAntibody |
EntrezGeneNumber | |
EntrezGeneSummary | Beta-cateninisanadherensjunctionprotein.Adherensjunctions(AJs;alsocalledthezonulaadherens)arecriticalfortheestablishmentandmaintenanceofepitheliallayers,suchasthoseliningorgansurfaces.AJsmediateadhesionbetweencells,communicateasignalthatneighboringcellsarepresent,andanchortheactincytoskeleton.Inservingtheseroles,AJsregulatenormalcellgrowthandbehavior.Atseveralstagesofembryogenesis,woundhealing,andtumorcellmetastasis,cellsformandleaveepithelia.Thisprocess,whichinvolvesthedisruptionandreestablishmentofepithelialcell-cellcontacts,mayberegulatedbythedisassemblyandassemblyofAJs.AJsmayalsofunctioninthetransmissionofthe"contactinhibition"signal,whichinstructscellstostopdividingonceanepithelialsheetiscomplete.[suppliedbyOMIM] |
GeneSymbol | - CTNNB1
- CTNNB
- Beta-catenin
- PRO2286
- FLJ37923
- FLJ25606
- DKFZp686D02253
|
PurificationMethod | ProteinAchromatography |
UniProtNumber | |
UniProtSummary | FUNCTION:SwissProt:P35222#InvolvedintheregulationofcelladhesionandinsignaltransductionthroughtheWntpathway. SIZE:781aminoacids;85497Da SUBUNIT:Twoseparatepoolsarefoundinthecytoplasm:oneisPSEN1/cadherin/catenincomplexwhichanchorstotheactincytoskeleton.TheotherpoolispartofalargecomplexcontainingAXIN1,AXIN2,APC,CSNK1A1andGSK3BthatpromotesphosphorylationonN-terminalSerandThrresiduesandubiquitinationofCTNNB1viaBTRCanditssubsequentdegradationbytheproteasome.Wnt-dependentactivationofDVLantagonizestheactionofGSK3B.WhenGSK3Bactivityisinhibitedthecomplexdissociates,CTNNB1isdephosphorylatedandisnolongertargetedfordestruction.Thestabilizedproteintranslocatestothenucleus,whereitbindsTCF/LEF-1familymembers,TBP,BCL9andpossIBLyalsoRUVBL1andDUPLIN.BindsCTNNBIPandEP300.CTNNB1formsaternarycomplexwithLEF1andEP300thatisdisruptedbyCTNNBIP1binding(Bysimilarity).InteractswiththePDZdomainofTAX1BP3;thisinteractioninhibitsthetranscriptionalactivityofCTNNB1(Bysimilarity).InteractswithAJAP1,BAIAP1,CARM1,CTNNA3,CXADRandPCDH11Y.BindsSLC9A3R1.InteractswithGLIS2.InteractswithSLC30A9(Bysimilarity). SUBCELLULARLOCATION:Cytoplasm.Nucleus.Note=Cytoplasmicwhenitisunstabilized(highlevelofphosphorylation)orboundtoCDH1.Translocatestothenucleuswhenitisstabilized(lowlevelofphosphorylation).InteractionwithGLIS2promotesnucleartranslocation. TISSUESPECIFICITY:Expressedinseveralhairfolliclecelltypes:basalandperipheralmatrixcells,andcellsoftheouterandinnerrootsheats.Expressedincolon. PTM:PhosphorylationbyGSK3BrequirespriorphosphorylationofSer-45byanotherkinase.PhosphorylationproceedsthenfromThr-41toSer-37andSer-33.&EGFstimulatestyrosinephosphorylation.PhosphorylationonTyr-654decreasesCDH1bindingandenhancesTBPbinding.&UbiquitinatedbyaE3ubiquitinligasecomplexcontainingUBE2D1,SIAH1,CACYBP/SIP,SKP1A,APCandTBL1X(Probable).Itsubiquitinationleadstoitssubsequentproteasomaldegradation. DISEASE:"SwissProt:P35222#ActivatingmutationsinCTNNB1haveoncogenicactivityresultingintumordevelopment.Somaticmutationsarefoundinvarioustumortypes,includingcoloncancers,ovarianandprostatecarcinomas,hepatoblastoma(HB),hepatocellularcarcinoma(HCC).HBsaremalignantembryonaltumorsmainlyaffectingyoungchildreninthefirstthreeyearsoflife.&DefectsinCTNNB1areacauseofpilomatrixoma(PTR)[MIM:132600];acommonbenignskintumor.&DefectsinCTNNB1areacauseofmedulloblastoma(MDB)[MIM:155255].MDBisamalignant,invasiveembryonaltumorofthecerebellumwithapreferentialmanifestationinchildren.&AchromosomalrearrangementinvolvingCTNNB1maybeacauseofsalivaryglandpleiomorphicadenomas(PA)[181030].Pleiomorphicadenomasarethemostcommonbenignepithelialtumorsofthesalivarygland.Translocationt(3;8)(p21;q12)withPLAG1." SIMILARITY:SwissProt:P35222##Belongstothebeta-cateninfamily.&Contains12ARMrepeats. |
MolecularWeight | 92kDa |