| Source | expressedinE.coli | 
| SpecificActivity | ForSpecificActivitydata,refertotheCertificateofAnalysisforindividuallotsofthisenzyme. | 
| EntrezGeneNumber |  | 
| EntrezGeneSummary | TheproteinencodedbythisgeneisamemberoftheMAPkinasefamily.MAPkinases,alsoknownasextracellularsignal-regulatedkinases(ERKs),actasanintegrationpointformultiplebiochemicalsignals,andareinvolvedinawidevarietyofcellularprocessessuchasproliferation,differentiation,transcriptionregulationanddevelopment.Theactivationofthiskinaserequiresitsphosphorylationbyupstreamkinases.Uponactivation,thiskinasetranslocatestothenucleusofthestimulatedcells,whereitphosphorylatesnucleartargets.Twoalternativelysplicedtranscriptvariantsencodingthesameprotein,butdifferingintheUTRs,havebeenreportedforthisgene. | 
| GeneSymbol | MAPK1p40PRKM2MAPK2PRKM1p42-MAPKp38ERKERK-2ERT1P54MAPKP41MAPKERK2
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| ProteinTarget | MAPK2 | 
| PurificationMethod | Ni2+/NTA-agarose | 
| TargetSub-Family | CMGC | 
| UniProtNumber |  | 
| UniProtSummary | FUNCTION:SwissProt:P63085#Serine/threoninekinasewhichactsasanessentialcomponentoftheMAPkinasesignaltransductionpathway.MAPK1/ERK2andMAPK3/ERK1arethe2MAPKswhichplayanimportantroleintheMAPK/ERKcascade.TheyparticipatealsoinasignalingcascadeinitiatedbyactivatedKITandKITLG/SCF.Dependingonthecellularcontext,theMAPK/ERKcascademediatesdiversebiologicalfunctionssuchascellgrowth,adhesion,survivalanddifferentiationthroughtheregulationoftranscription,translation,cytoskeletalrearrangements.ThetheMAPK/ERKcascadeplaysalsoaroleininitiationandregulationofmeiosis,mitosis,andpostmitoticfunctionsindifferentiatedcellsbyphosphorylatinganumberoftranscriptionfactors.About160substrateshavealreadybeendiscoveredforERKs.Manyofthesesubstratesarelocalizedinthenucleus,andseemtoparticipateintheregulationoftranscriptionuponstimulation.However,othersubstratesarefoundinthecytosolaswellasinothercellularorganelles,andthoseareresponsIBLeforprocessessuchastranslation,mitosisandapoptosis.Moreover,theMAPK/ERKcascadeisalsoinvolvedintheregulationoftheendosomaldynamics,includinglysosomeprocessingandendosomecyclingthroughtheperinuclearrecyclingcompartment(PNRC);aswellasinthefragmentationoftheGolgiapparatusduringmitosis. COFACTOR:Magnesium(Bysimilarity).
 DOMAIN:TheTXYmotifcontainsthethreonineandtyrosineresidueswhosephosphorylationactivatestheMAPkinases.
 SIMILARITY:Belongstotheproteinkinasesuperfamily.CMGCSer/Thrproteinkinasefamily.MAPkinasesubfamily.&Contains1proteinkinasedomain.
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| MolecularWeight | 45kDa |