| Immunogen | SyntheticpeptidefromhumanNotch1. | 
| Epitope | Intracellular | 
| Host | Rabbit | 
| Specificity | Notch1,intracellular.NoreactivityagainsthumanNotch2. | 
| Isotype | IgG | 
| SpeciesReactivity |  | 
| SpeciesReactivityNote | Human.NoreactivityobservedtomouseNotch.Reactivitywithotherspecieshasnotbeendetermined. | 
| AntibodyType | PolyclonalAntibody | 
| 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. | 
| GeneSymbol |  | 
| UniProtNumber |  | 
| UniProtSummary | FUNCTION:SwissProt:P46531#Functionsasareceptorformembrane-boundligandsJagged1,Jagged2andDelta1toregulatecell-fatedetermination.Uponligandactivationthroughthereleasednotchintracellulardomain(NICD)itformsatranscriptionalactivatorcomplexwithRBP-Jkappaandactivatesgenesoftheenhancerofsplitlocus.Affectstheimplementationofdifferentiation,proliferationandapoptoticprograms.Maybeimportantfornormallymphocytefunction.Inalteredform,maycontributetotransformationorprogressioninsomeT-cellneoplasms.InvolvedinthematurationofbothCD4+andCD8+cellsinthethymus.Maybeimportantforfolliculardifferentiationandpossiblycellfateselectionwithinthefollicle.Duringcerebellardevelopment,mayfunctionasareceptorforneuronalDNERandmaybeinvolvedinthedifferentiationofBergmannglia(Bysimilarity). SIZE:2556aminoacids;272500Da
 SUBUNIT:HeterodimerofaC-terminalfragmentN(TM)andanN-terminalfragmentN(EC)whichareprobablylinkedbydisulfidebonds.InteractswithDNER,DTX1,DTX2andRBPSUH.AlsointeractswithMAML1,MAML2andMAML3whichactastranscriptionalcoactivatorsforNOTCH1.
 SUBCELLULARLOCATION:Cellmembrane;Single-passtypeImembraneprotein(Bysimilarity).&Notch1intracellulardomain:Nucleus(Bysimilarity).Note=FollowingproteolyticalprocessingNICDistranslocatedtothenucleus(Bysimilarity).
 TISSUESPECIFICITY: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)fromthemembrane(Bysimilarity).&Phosphorylated(Bysimilarity).
 DISEASE:SwissProt:P46531#NOTCH1truncationisassociatedwithT-cellacutelymphoblasticleukemia.&DefectsinNOTCH1areacauseofaorticvalvedisease[MIM:109730].Thedisorderconsistsofanearlydevelopmentaldefectintheaorticvalveandalaterde-repressionofcalciumdepositionthatcausesprogressiveaorticvalvedisease.CalcificationoftheaorticvalveisthethirdleADIngcauseofheartdiseaseinadults.Theincidenceincreaseswithage,anditisoftenassociatedwithabicUSPidaorticvalvepresentin1-2%ofthepopulation.
 SIMILARITY:SwissProt:P46531##BelongstotheNOTCHfamily.&Contains5ANKrepeats.&Contains36EGF-likedomains.&Contains3LNR(Lin/Notch)repeats.
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| MolecularWeight | ~80kDa |