Immunogen | SyntheticpeptidecorrespondingtothecytoplasmicdomainofhumanNotch1 |
Epitope | CytoplasmicDomain |
Clone | EP1238Y |
Host | Rabbit |
Specificity | ThisantibodyrecognizesthecytoplasmicdomainofNotch1 |
Isotype | IgG |
SpeciesReactivity | |
AntibodyType | MonoclonalAntibody |
EntrezGeneNumber | |
EntrezGeneSummary | ThisgeneencodesamemberoftheNotchfamily.MembersofthisType1transmembraneproteinfamilysharestructuralcharacteristicsincludinganextracellulardomainconsistingofmultipleepidermalgrowthfactor-like(EGF)repeats,andanintracellulardomainconsistingofmultiple,differentdomaintypes.Notchfamilymembersplayaroleinavarietyofdevelopmentalprocessesbycontrollingcellfatedecisions.TheNotchsignalingnetworkisanevolutionarilyconservedintercellularsignalingpathwaywhichregulatesinteractionsbetweenphysicallyadjacentcells.InDrosophilia,notchinteractionwithitscell-boundligands(delta,serrate)establishesanintercellularsignalingpathwaythatplaysakeyroleindevelopment.Homologuesofthenotch-ligandshavealsobeenidentifiedinhuman,butpreciseinteractionsbetweentheseligandsandthehumannotchhomologuesremaintobedetermined.Thisproteiniscleavedinthetrans-Golginetwork,andpresentedonthecellsurfaceasaheterodimer.Thisproteinfunctionsasareceptorformembraneboundligands,andmayplaymultiplerolesduringdevelopment.[providedbyRefSeq] |
GeneSymbol | |
UniProtNumber | |
UniProtSummary | FUNCTION:Functionsasareceptorformembrane-boundligandsJagged1,Jagged2andDelta1toregulatecell-fatedetermination.Uponligandactivationthroughthereleasednotchintracellulardomain(NICD)itformsatranscriptionalactivatorcomplexwithRBP-Jkappaandactivatesgenesoftheenhancerofsplitlocus.Affectstheimplementationofdifferentiation,proliferationandapoptoticprograms.Maybeimportantfornormallymphocytefunction.Inalteredform,maycontributetotransformationorprogressioninsomeT-cellneoplasms.InvolvedinthematurationofbothCD4+andCD8+cellsinthethymus.MaybeimportantforfolliculardifferentiationandpossIBLycellfateselectionwithinthefollicle.Duringcerebellardevelopment,mayfunctionasareceptorforneuronalDNERandmaybeinvolvedinthedifferentiationofBergmanngliaBysimilarity. SUBUNITSTRUCTURE:HeterodimerofaC-terminalfragmentN(TM)andanN-terminalfragmentN(EC)whichareprobablylinkedbydisulfidebonds.InteractswithDNER,DTX1,DTX2andRBPSUH.AlsointeractswithMAML1,MAML2andMAML3whichactastranscriptionalcoactivatorsforNOTCH1.Ref.6Ref.7Ref.8 SUBCELLULARLOCATION:Cellmembrane;Single-passtypeImembraneproteinBysimilarity. Notch1intracellulardomain:NucleusBysimilarity.Note=FollowingproteolyticalprocessingNICDistranslocatedtothenucleusBysimilarity. TISSUESPECIFICTY:Infetaltissuesmostabundantinspleen,brainstemandlung.Alsopresentinmostadulttissueswhereitisfoundmainlyinlymphoidtissues. PTM:Synthesizedintheendoplasmicreticulumasaninactiveformwhichisproteolyticallycleavedbyafurin-likeconvertaseinthetrans-Golginetworkbeforeitreachestheplasmamembranetoyieldanactive,ligand-accessibleform.CleavageresultsinaC-terminalfragmentN(TM)andaN-terminalfragmentN(EC).Followingligandbinding,itiscleavedbyTNF-alphaconvertingenzyme(TACE)toyieldamembrane-associatedintermediatefragmentcallednotchextracellulartruncation(NEXT).Thisfragmentisthencleavedbypresenilindependentgamma-secretasetoreleaseanotch-derivedpeptidecontainingtheintracellulardomain(NICD)fromthemembraneBysimilarity. PhosphorylatedBysimilarity. INVOLVEMENTINDISEASE:NOTCH1truncationisassociatedwithT-cellacutelymphoblasticleukemia.Ref.13 DefectsinNOTCH1areacauseofaorticvalvedisease[MIM:109730].Thedisorderconsistsofanearlydevelopmentaldefectintheaorticvalveandalaterde-repressionofcalciumdepositionthatcausesprogressiveaorticvalvedisease.CalcificationoftheaorticvalveisthethirdleADIngcauseofheartdiseaseinadults.Theincidenceincreaseswithage,anditisoftenassociatedwithabicUSPidaorticvalvepresentin1-2%ofthepopulation. SEQUENCESIMILARITIES:BelongstotheNOTCHfamily. Contains5ANKrepeats. Contains36EGF-likedomains. Contains3LNR(Lin/Notch)repeats. |
MolecularWeight | ~125kDa |