Description | |
---|---|
CatalogueNumber | 17-475 |
BrandFamily | Upstate |
TradeName |
|
Description | Phospho-p53(Ser15)STARELISAKit |
BackgroundInformation | I.TESTPRINCIPLE ThecolorimetricSTAR(SignalTransductionAssayReaction)ELISAkitisasolidphasesandwichenzymelinkedimmunosorbentassaythatprovidesafast,sensitivemethodtodetectspecificlevelsofsignalingtargetsinwholecellextracts.Thep53plateiscoatedwithaspecificmousemonoclonalp53captureantibodyonthemicrowellsofthe96-wellclearplate.Samplelysateorthestandardincludedinthekitareincubatedinthemicrowellsallowingp53antigentobecapturedintheplatewells.Theplateisthenwashedtoremoveanyunboundnon-specificmaterial.Thewellsarethenincubatedwithaspecificrabbitanti-phospho-p53(Ser15)antibodytodetectthecapturedp53ontheplatewellthatisphosphorylatedonSer15.TheunbounddetectionantibodyiswashedawayfollowedbyincubationwithanHRP-conjugatedanti-rabbitantibody.AftertheadditionofTMBsubstrateandstopsolutiontheabsorbanceismeasuredat450nmusingaplatereader.Thisallowsforasensitiveenzymaticdetectionofthesample. Theentireassaytakeslessthan5hourstocompletewithminimalhands-ontime.Manyofthereagentsaresuppliedinready-touseformulationsforeaseofuse.Thekitalsoincludesastandardthatisrunasbothapositivecontrolandtogenerateastandardcurveforphosphorylatedp53(Ser15)measurement. II.p53BACKGROUND p53,agenethatismutatedinapproximatelyhalfofallhumancancers,haslongbeenregardedastheguardianofthegenomebyregulatinggenescontrollingcellcycleprogression,DNArepairandapoptosis.Inresponsetocellularstress,suchasDNAdamage,hypoxia,orrADIation,p53isactivatedandinturnittranscriptionallyactivatestheexpressionofparticulargenes,includingthecyclin-dependentkinaseinhibitorp21,andtogetherwithp19ARF,inducesexpressionofp21Cip1,tocausecellcyclearrest.Alternatively,p53canworkviaapoptosisasawayofeliminatingirreparablydamagedcells. Inactivationorlossofp53hasbeenassociatedwithderegulationofthecellcycleandDNAreplication,inefficientDNArepair,lossofcellularapoptoticresponsesandultimatelythedevelopmentofvarioushumancancers.Thep53polypeptidecontainsthreedistinctregions.Theamino-terminal83aminoacidsofp53containsthetransactivationdomain,aswellastheregioninvolvedintranscription-independentgrowthsuppression,thecentralsequence-specificDNAbindingregion,andthecarboxy-terminalregioncontainstheDNA-bindingdomain.ActivationandstABIlizationofp53isregulatedbyphosphorylationandpossIBLyacetylation |
MaterialsRequiredbutNotDelivered | 1.Multi-channelorrepeatingPipettes 2.Plateshaker(optional) 3.Pipettorsandtipscapableofaccuratelymeasuring1-1000µL 4.GraduatedSEROlogicalpipettes 5.96-wellmicrotiterPlateReaderwith450nmfilter 6.Graphingsoftwareforplottingdataorgraphpaperformanualplottingofdata 7.Microfugetubesforstandardandsampledilutions 8.Mechanicalvortex 9.1litercontainer 10.Distilledordeionizedwater |
ProductInformation | |
---|---|
Components |
|
Detectionmethod | Colorimetric |
StorageandShippingInformation | |
---|---|
StorageConditions | Maintaintheunopenedkitat2-8°Cuntilexpirationdate. Precautions •Theinstructionsprovidedhavebeendesignedtooptimizethekit"sperformance.Deviationfromtheinstructionsmayresultinsuboptimalperformanceofthekitandthefailuretoproduceaccuratedata. •CausticMaterial:StopSolution.Caution:Eye,hand,face,andclothingprotectionshouldbewornwhenhandlingthismaterial. •SafetyWarningsandPrecautions:Thiskitisdesignedforresearchuseonlyandnotrecommendedforinternaluseinhumansoranimals.Allchemicalsshouldbeconsideredpotentiallyhazardousandprinciplesofgoodlaboratorypracticeshouldbefollowed. •TheDetectionAntibodyandELISADiluentcontainsodiumazide.Sodiumazidemayreactwithcopperandleadplumbingtoformhighlyexplosivemetalazides.Upondisposal,flushwithlargeamountsofwatertopreventazidebuild-up.Avoidcontactwithskin. •TheAnti-RabbitIgGHRPConjugateandHRPDiluentcontainthimerosal.Thimerosalishighlytoxicbyinhalation,contactwithskinorifswallowed.Thimerosalisapossiblemutagenandshouldbehandledaccordingly. |
Applications | |
---|---|
KeyApplications |
|
BIOLOGicalInformation | |
---|---|
SpeciesReactivity |
|
AnalytesAvailable |
|
EntrezGeneNumber | |
EntrezGeneSummary | Tumorproteinp53,anuclearprotein,playsanessentialroleintheregulationofcellcycle,specificallyinthetransitionfromG0toG1.Itisfoundinverylowlevelsinnormalcells,however,inavarietyoftransformedcelllines,itisexpressedinhighamounts,andbelievedtocontributetotransformationandmalignancy.p53isaDNA-bindingproteincontainingDNA-binding,oligomerizationandtranscriptionactivationdomains.Itispostulatedtobindasatetramertoap53-bindingsiteandactivateexpressionofdownstreamgenesthatinhibitgrowthand/orinvasion,andthusfunctionasatumorsuppressor.Mutantsofp53thatfrequentlyoccurinanumberofdifferenthumancancersfailtobindtheconsensusDNAbindingsite,andhencecausethelossoftumorsuppressoractivity.AlterationsoftheTP53geneoccurnotonlyassomaticmutationsinhumanmalignancies,butalsoasgermlinemutationsinsomecancer-pronefamilieswithLi-Fraumenisyndrome. |
GeneSymbol |
|
Modifications |
|
UniProtNumber | |
UniProtSummary | FUNCTION:SwissProt:P04637#Actsasatumorsuppressorinmanytumortypes;inducesgrowtharrestorapoptosisdependingonthephysiologicalcircumstancesandcelltype.Involvedincellcycleregulationasatrans-activatorthatactstonegativelyregulatecelldivisionbycontrollingasetofgenesrequiredforthisprocess.Oneoftheactivatedgenesisaninhibitorofcyclin-dependentkinases.ApoptosisinductionseemstobemediatedeitherbystimulationofBAXandFASantigenexpression,orbyrepressionofBcl-2expression. COFACTOR:Binds1zincionpersubunit. SIZE:393aminoacids;43653Da SUBUNIT:InteractswithAXIN1.ProbablypartofacomplexconsistingofTP53,HIPK2andAXIN1(Bysimilarity).BindsDNAasahomotetramer.InteractswithhistoneacetyltransferasesEP300andmethyltransferasesHRMT1L2andCARM1,andrecruitsthemtopromoters.Invitro,theinteractionofTP53withcancer-associated/HPV(E6)viralproteinsleadstoubiquitinationanddegradationofTP53givingapossiblemodelforcellgrowthregulation.Thiscomplexformationrequiresanadditionalfactor,E6-AP,whichstablyassociateswithTP53inthepresenceofE6.C-terminusinteractswithTAF1,whenTAF1ispartoftheTFIIDcomplex.InteractswithING4andthisinteractionmaybeindirect.FoundinacomplexwithCABLES1andTP73.InteractswithHIPK1,HIPK2,andP53DINP1.InteractswithWWOX.MayinteractswithHCVcoreprotein.InteractswithUSP7andSYVN1.InteractswithHSP90AB1(Bysimilarity).InteractswithBANP. SUBCELLULARLOCATION:Cytoplasm.Nucleus.Endoplasmicreticulum.Note=InteractionwithBANPpromotesnuclearlocalization. DOMAIN:SwissProt:P04637Thenuclearexportsignalactsasatranscriptionalrepressiondomain. PTM:Acetylated.AcetylationofLys-382byCREBBPenhancestranscriptionalactivity.DeacetylationofLys-382bySIRT1impairsitsabilitytoinduceproapoptoticprogramandmodulatecellsenescence.&PhosphorylationonSerresiduesmediatestranscriptionalactivation.PhosphorylatedbyHIPK1(Bysimilarity).PhosphorylatedonThr-18byVRK1,whichmaypreventtheinteractionwithMDM2.PhosphorylatedonThr-55byTAF1,whichpromotesMDM2-mediateddegradation.PhosphorylatedonSer-46byHIPK2uponUVirradiation.PhosphorylationonSer-46isrequiredforacetylationbyCREBBP.PhosphorylatedonSer-392followingUVbutnotgammairradiation.PhosphorylateduponDNAdamage,probablybyATMorATR.PhosphorylatedonSer-15uponultravioletirradiation;whichisenhancedbyinteractionwithBANP.&DephosphorylatedbyPP2A.SV40smallTantigeninhibitsthedephosphorylationbytheACformofPP2A.&MaybeO-glycosylatedintheC-terminalbasicregion.StudiedinEB-1cellline.&UbiquitinatedbySYVN1,whichleadstoproteasomaldegradation. DISEASE:SwissProt:P04637#TP53isfoundinincreasedamountsinawidevarietyoftransformedcells.TP53isfrequentlymutatedorinactivatedinabout60%ofcancers.&DefectsinTP53areinvolvedinesophagealsquamouscellcarcinoma(ESCC)[MIM:133239].ESCCisatumoroftheesophagus.&DefectsinTP53areacauseofLi-Fraumenisyndrome(LFS)[MIM:151623].LFSisanautosomaldominantfamilialcancersyndromethatinitsclassicformisdefinedbytheexistenceofbothaprobandwithasarcomaandtwootherfirst-degreerelativeswithacancerbyage45years.Inthesefamiliestheaffectedrelativesdevelopadiversesetofmalignanciesatunusuallyearlyages.ThespectrumofcancersinLFSincludesbreastcarcinomas,soft-tissuesarcomas,braintumors,osteosarcoma,leukemiaandadreno-corticalcarcinoma.OtherpossiblecomponenttumorsofLFSaremelanoma,gonadalcelltumorsandcarcinomasofthelung,pancreasandprostate.&DefectsinTP53maybeassociatedwithnasopharyngealcarcinoma[MIM:161550];alsoknownasnasopharyngealcancer.&DefectsinTP53arefoundinBarrettmetaplasia;alsoknownasBarrettesophagus.Itisaconditioninwhichthenormallystratifiedsquamousepitheliumoftheloweresophagusisreplacedbyametaplasticcolumnarepithelium.Theconditiondevelopsasacomplicationinapproximately10%ofpatientswithchronicgastroesophagealrefluxdiseaseandpredisposestothedevelopmentofesophagealadenocarcinoma.&DefectsinTP53areinvolvedinheadandnecksquamouscellcarcinomas(HNSCC)[MIM:275355].&DefectsinTP53areinvolvedinoralsquamouscellcarcinoma(OSCC).Cigarettesmokeisaprimemutagenicagentincanceroftheaerodigestivetract.&DefectsinTP53areacauseoflungcancer[MIM:211980].&DefectsinTP53areacauseofchoroidplexuspapilloma[MIM:260500].Choroidplexuspapillomaisaslow-growingbenigntumorofthechoroidplexusthatofteninvadestheleptomeninges.Inchildrenitisusuallyinalateralventriclebutinadultsitismoreofteninthefourthventricle.Hydrocephalusiscommon,eitherfromobstructionorfromtumorsecretionofcerebrospinalfluid.Ifitundergoesmalignanttransformationitiscalledachoroidplexuscarcinoma.Primarychoroidplexustumorsarerareandusuallyoccurinearlychildhood.&DefectsinTP53areacauseofoneformofhereditaryadrenocorticalcarcinoma(ADCC)[MIM:202300].ADCCisararechildhoodtumor,representingabout0.4%ofchildhoodtumors,withahighincidenceofassociatedtumors.ADCCoccurswithincreasedfrequencyinpatientswiththeBeckwith-Wiedemannsyndrome[MIM:130650]andisacomponenttumorinLi-Fraumenisyndrome[MIM:151623]. SIMILARITY:Belongstothep53family. |
PhysicochemicalInformation | |
---|---|
Sensitivity |
|
Dimensions |
---|
MaterialsInformation |
---|
MaterialsInformation |
---|
Millipore常用产品报价单
产品名 | 货号 | 公司分类 | 商城分类 | 美金价 |
Millipore/475855-1R神奇滤布 密理博Millipore现货促销 | 475855-1R | Life Science Research | 膜 | 93.50 | Millipore/17-701/EZ-Magna RIP™ RNA-Binding Protein Immunoprecipitation Kit | 17-701 | Life Science Research | 定量试剂盒 | 653.00 | Millipore/RIPAb+ Ago2 - RIP Validated Antibody and Primer Set | 03-110 | Life Science Research | 抗体套装 | 433.00 | Millipore/CBL468F | Anti-PECAM-1 Antibody, clone HC1/6, FITC conjugated/CBL468F/100 assays | CBL468F | Antibodies and Assays | 功能性抗体 | 298.00 | Millipore/ECM460 | αVβ3/PECAM Investigator Kit/ECM460/1 kit | ECM460 | Antibodies and Assays | 夹心法ELISA | 477.00 |