Description | |
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CatalogueNumber | HTS001M |
BrandFamily | Chemicon® |
TradeName |
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Description | ChemiSCREEN™MembranePreparationRecombinantHumanCXCR1ChemokineReceptor |
Overview | :Full-lengthhumanCXCR1CDNA |
BackgroundInformation | CXCR1(alsoknownasIL-8RA)isaGi/o-coupledGPCRexpressedonneutrophils,CD8(+)Tcells,andintestinalepithelialcells(Murphy,1997;Sturmetal.,2005;Takataetal.,2004).CXCR1bindsspecificallytothechemokineinterleukin-8(IL-8),whereasarelatedreceptor,CXCR2,bindspromiscuouslytoIL-8andseveralotherchemokines.CXCR1hasbeenproposedtobetheprimaryregulatorofneutrophilresponsetoIL-8insepsis(Cummingsetal.,1999).AntagoNISTsofCXCR1andCXCR2havebeendevelopedanddisplayefficacyinanimalmodelsofreperfusioninjury(Bertini,etal.,2004;Kaneideretal.,2005).Millipore"sCXCR1membranepreparationsarecrudemembranepreparationsmadefromourproprietarystablerecombinantcelllinestoensurehigh-levelofGPCRsurfaceexpression;thus,theyareidealHTStoolsforscreeningofantagonistsofCXCR1interactionwithIL-8.ThemembranepreparationsexhibitaKdof0.2nMfor[125I]-IL-8.With5μg/wellCXCR1MembranePrepand0.1nM[125I]-IL-8,agreaterthan5-foldsignal-to-backgroundratioisobtained. |
ProductInformation | |
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Format | Membranes |
Presentation | Liquidinpackagingbuffer:50mMTrispH7.4,10%glyceroland1%BSAnopreservatives.Packagingmethod:Membranesproteinwereadjustedtotheindicatedconcentrationinpackagingbuffer,rapidlyfrozen,andstoredat-80°C. |
StorageandShippingInformation | |
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StorageConditions | Maintainfrozenat-70°Cforupto2years.Donotfreezeandthaw. |
Applications | |
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Application | HumanCXCR1/IL-8aGPCRmembranepreparationforRADIoligandbindingAssays>PgammaSbinding. |
KeyApplications |
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ApplicationNotes | Radioligandbindingassay,andGTPgammaSbinding. |
BIOLOGicalInformation | |
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Concentration | 1mg/mL |
EntrezGeneNumber | |
EntrezGeneSummary | TheproteinencodedbythisgeneisamemberoftheG-protein-coupledreceptorfamily.Thisproteinisareceptorforinterleukin8(IL8).ItbindstoIL8withhighaffinity,andtransducesthesignalthroughaG-proteinactivatedsecondmessengersystem.Knockoutstudiesinmicesuggestedthatthisproteininhibitsembryonicoligodendrocyteprecursormigrationindevelopingspinalcord.Thisgene,IL8RB,ageneencodinganotherhighaffinityIL8receptor,aswellasIL8RBP,apseudogeneofIL8RB,formageneclusterinaregionmappedtochromosome2q33-q36. |
GeneSymbol |
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GPCRClass | A |
HostCells | Chem-1 |
ProteinTarget | CXCR1/IL-8a |
TargetSub-Family | Chemokine |
UniProtNumber | |
UniProtSummary | FUNCTION:SwissProt:P25024#Receptortointerleukin-8,whichisapowerfulneutrophilschemotacticfactor.BindingofIL-8tothereceptorcausesactivationofneutrophils.ThisresponseismediatedviaaG-proteinthatactivateaphosphatidylinositol-calciumsecondmessengersystem.ThisreceptorbindstoIL-8withahighaffinityandtoMGSA(GRO)withalowaffinity. SIZE:350aminoacids;39791Da SUBCELLULARLOCATION:Cellmembrane;Multi-passmembraneprotein. SIMILARITY:SwissProt:P25024##BelongstotheG-proteincoupledreceptor1family. |
IncubationConditions | RECOMMENDEDASSAYCONDITIONS:Membranesaremixedwithradioactiveligandandunlabeledcompetitor(seeFigures1and2forconcentrationstested)inbindingbufferinanonbinding96-wellplate,andincubatedfor1-2h.Priortofiltration,anFC96-wellharvestplate(Milliporecat.#MAHFC1H)iscoatedwith0.33%polyethyleneiminefor30min,thenwashedwith50mMHEPES,pH7.4,0.5%BSA.Bindingreactionistransferredtothefilterplate,andwashed3times(1mLperwellperwash)withWashBuffer.Theplateisdriedandcounted. Bindingbuffer:50mMHepes,pH7.4,5mMMgCl2,1mMCaCl2,0.2%BSA,filteredandstoredat4°C Radioligand:[125I]Interleukin-8(PerkinElmer#NEX277) WashBuffer:50mMHepes,pH7.4,500mMNaCl,0.1%BSA,filteredandstoredat4°C. Onevialcontainsenoughmembranesforatleast200assays(units),whereanunitistheamountofmembranethatwillyieldgreaterthan5-foldsignal:backgroundwith125I-labeledIL-8at0.1nM |
PhysicochemicalInformation |
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MaterialsInformation |
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MaterialsInformation |
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