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LyophilizedPowderThisproductisfreezedried.Allwatermoleculeshavebeenremoved.
AntigenIncl.ThisantibodyisshippedwithitsantigenFREEofcharge!
- Peptide(C)ETQMENYDKHVTYNAERS,correspondingtoaminoacidresidues542-559ofratKCNN2 (Accession P70604).Intracellular,C-terminus.

Westernblotanalysisofratbrainlysate(lanes1and3)andmousebrainlysate(lanes2and4):1,2.Guineapig Anti-KCNN2(KCa2.2,SK2)Antibody(#AGP-045),(1:1000).
3,4.GuineapigAnti-KCNN2(KCa2.2,SK2)Antibody,preincubatedwiththenegativecontrolantigen.
- 1.Kohler,M.etal.(1996)Science273,1709.
- 2.Xia,X.M.etal.(1998)Nature395,503.
- 3.Stocker,M.(2004)Nat.Rev.Neurosci.5,758.
KCa2.2 (KCNN2,SK2)isamemberoftheCa2+-activatedK+ channelfamilywithsmallconductancethatincludes KCa2.1 (KCNN1,SK1)and KCa2.3 (KCNN3,SK3).ThechannelisvoltageinsensitiveandisactivatedbyintracellularCa2+ inthesubmicromolarrange.Ithas,though,asimilartopologytothatofvoltage-dependentK+ channels(KV channels),thatissixtransmembranedomainsandintracellularN-andC-termini.ThefunctionalchannelofalltheKCa2familymembersisamultimericproteincomposedoffourpore-formingsubunits.
KCa2channelsareextremelysensitivetothelevelsofintracellularCa2+ andconcentrationsaslowas300-700nMcanopenthechannelsveryrapidly(5-15ms).Hence,theKCa2channelsarehighlysensitiveandfastCa2+ sensorsresemblingotherknownCa2+-bindingproteins.ThistypeofCa2+-dependentactivationisachievedbytheconstitutivebindingoftheKCa2channelstocalmodulin,ahighlyexpressedCa2+-bindingproteinviaacalmodulin-bindingdomainsituatedatthecytoplasmicC-terminus.
Pharmacologically,theKCa2channelsaretheonlyknowntargetsofthebeevenomtoxin Apamin,withKCa2.1beingtheleastsensitive,KCa2.2themostsensitiveandKCa2.3showingintermediatesensitivity.
KCa2.2ispredominantlyexpressedinthenervoussystemalthoughexpressioninendothelialcells,heartandliverhasbeendescribed.
KCa2.2isknowntobeinvolvedintheregulationofneuronalexcitABIlity.TheydosomainlyviaaphenomenonknownasafterhyperpolarizationinwhichKCa2channelsopeninresponsetoincreasedintracellularCa2+ concentrationsthatresultfromtheentryofextracellularCa2+ throughvoltage-dependentCa2+ channelsduringactionpotentials.Inthisway,KCa2channelseffectivelyformaCa2+-mediatedfeedbackloop.
AlomoneLabsispleasedtoofferahighlyspecificantibodydirectedagainstanepitopeofratKCNN2 channel.GuineapigAnti-KCNN2(KCa2.2,SK2)Antibody(#AGP-045)canbeusedinwesternblotanalysis.IthasbeendesignedtorecognizeKCNN2 fromhuman,ratandmousesamples.TheantigenusedtoimmunizeguineapigsisthesameasAnti-KCNN2(KCa2.2,SK2)Antibody(#APC-028)raisedinrabbit.Ourlineofguineapigantibodiesenablesmoreflexibilitywithourproductssuchasimmuno-colocalizationstudies,immunoprecipitation,etc.


