Description | GAP43isveryabundantproteinwhichisfoundconcentratedinneurons.Onegroupdiscovereditasoneofthreeproteinswhichbecomesunregulatedduringtheregenerationofthetoadopticnerve(1).ThreeGAPs(Growthassociatedproteins)werediscovered,andthenumber43comesfromtheapparentSDS-PAGEmolecularweightoftheonenamedGAP43.TheHGNCnameforthisproteinis,notsurprisingly,GAP43.LaterworkshowedthatGAP43doesnotrunonSDS-PAGEinafashionwhichaccuratelyreflectsitsmolecularweight,andthatGAP43proteinsfromdifferentspeciesmayrunatdifferentapparentmolecularweights.PartlyduetothesefeaturesGAP43wereindependentlydiscoveredbyseveraldifferentgroupsandthereforehasseveralalternatenames,suchasproteinF1,pp46,neuromodulin,neuralphosphoproteinB-50andcalmodulin-bindingproteinP-57.IneachcasethenumberreflectstheapparentSDS-PAGEmolecularweight,andunderlinestheunusualpropertiesofthismolecule.MammalianGAP43proteinscontainsonly226-243aminoacids,andsotherealmolecularweightis23.61-25.14kDa.GAP43hasbeenextensivelystudiedandisknowntobeamajorproteinkinaseCsubstrateandtobindcalmodulinavidly.GAP43isanchoredtotheplasmamembranebypalmitoylationmodifications. |
Antigen | C-terminalpeptide217-227ofratandmouseGAP43,whichisKEDPEADQEHA,towhichanNterminalCysteineresiduewasaddedtoallowchemicalcouplingtoKeyholeLimpetHemocyanincarrierprotein. |
AntibodyType | Polyclonal |
Isotype | IgG |
Accession | P07936NEUM_RAT P06837NEUM_MOUSE |
Producedin | Rabbit |
Purity | Affinitypurified. |
Applications | WesternBlotting(WB).Adilutionof1:5,000-1:20,000isrecommended.Adilutionof1:500-2,000isrecommendedforICC/IHC.Biosensisrecommendsoptimaldilutions/concentrationsshouldbedeterminedbytheenduser. |
Specificity | Theantibodyreactswitha43kDabandbyWesternblotonbovinecerebellumhomogenate.Themolecularweightoftheproteinrecognizedcanvary(~43-57kDa)dependingonthespeciesandthepercentageacrylamideusedintheSDS-PAGEgel.Ithasalsobeenusedsuccessfullyforimmunocytochemistry. |
SpeciesAgainst | Human,ratandbovine.Itisexpectedthatitwillworkonothermammaltissuesduetoaminoacidsequencesimilarity. |
AntibodyAgainst | GrowthAssociatedProtein43(GAP43) |
Form | LyophilisedfromPBS,pH7.4containing3%trehalose,withoutpreservatives. |
Reconstitution | Reconstitutewith100µLsterile-filtered,ultrapurewater,toachieveanantibodyconcentrationof1mg/mL.Centrifugebrieflytoremoveanyinsolublematerial. |
Storage | Storelyophilised,unopenedvialat2-8°Corlower.Afterreconstitution,preparealiquotsandstoreat-20°Cto-80°CforahigherstABIlity.Avoidfreeze-thawcycles. |
ExpiryDate | 12monthsafterpurchase(unopenedvial). |
GeneralReferences | SkeneJH,WillardM.Changesinaxonallytransportedproteinsduringaxonregenerationintoadretinalganglioncells.J.CellBiol.89:86-95(1981). |
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