Description | Theheatshockproteinswerediscovered,asthenamesuggests,sincetheyareheavilyupregulatedwhencellsarestressedbytemperaturesabovethenormalphysiologicalrange.Theyareexpressedinunstressedcellsalsoandhaveanormalfunctionaschaperones,helpingotherproteinstofoldcorrectly,andarerequiredinmuchgreateramountsifthecellortissueisstressedbyheat.Theincreasedlevelsaregeneratedtranscriptionallyundertheinfluenceofapowerfultranscriptionfactor,theheatshockfactor1(HSF1).ThedifferentheatshockproteinswereoriginallynamedbasedontheirSDS-PAGEmobility,soHSP27hasanapparentmolecularweightof27kDa.Itisanabundantproteinevenundernon-stressconditionsandfrequentlyshowsupasamajorspoton2dimensionalgelsofcellsortissues.Itisknowntoassociatewithavarietyofotherproteinssuchasactin,intermediatefilamentsubunitsandubiquitinandisfoundbothinthecytoplasmandthenucleusofcells.HSP27canbecomeheavilyphosphorylatedundertheinfluenceofmultipleproteinkinasesparticularlyasaresultofactivationofthep38/SAPKpathway.Upregulationofthisproteinisprotectiveagainstneurodegenerativediseasesatleastincertainmousemodels(1).PointmutationsintheHSP27geneareassociatedwithtwoneurologicaldiseases,Charcot-Marie-Toothdiseasetype2FanddistalhereditarymotorneuropathyIIB(2).Thesediseasesareassociatedwithaxonallossapparentlyfollowingdefectsinthetransportofneurofilaments. |
Unitsize | 100uL |
Antigen | HSP27 |
Isotype | IgG1 |
Producedin | Mouse |
Purity | IgG |
Applications | WesternBlotting(WB)andImmunocytochemistry(IC).Adilutionof1:5,000-1:10,000isrecommendedforWB.Adilutionof1:500-1:1,000isrecommendedforIC.Biosensisrecommendsoptimaldilutions/concentrationsshouldbedeterminedbytheenduser. |
Specificity | Theantibodyreactswitha27kDabandbyWesternblotonacrudeextractfromHeLacells.Ithasalsobeenusedsuccessfullyforimmunocytochemistry. |
SpeciesAgainst | Human,rat,mouse,porcineandbovine.Itisexpectedthatitwillworkonothermammaltissues. |
AntibodyAgainst | HeatShockProtein27(HSP27) |
Form | Lyophilisedwith5%trehalose |
Appearance | Whitepowder |
Reconstitution | Reconstituteinsteriledistilledwater.Centrifugetoremoveanyinsolublematerial. |
Storage | Afterreconstitutionoflyophilisedantibody,aliquotandstoreat-20°CforahigherstABIlity.Avoidfreeze-thawcycles. |
ExpiryDate | 12monthsafterpurchase |
GeneralReferences | 1.Wyttenbach,Aetal.Heatshockprotein27preventscellularpolyglutaminetoxicityandsuppressestheincreaseofreactiveoxygenspeciescausedbyhuntingtin.Hum.Molec.Genet.11:1137-1151(2002).2.Evgrafov,OVetal.Mutantsmallheat-shockprotein27causesaxonalCharcot-Marie-Toothdiseaseanddistalhereditarymotorneuropathy.NatureGenet.36:602-606(2004). |
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