Thisproductisfreezedried.Allwatermoleculeshavebeenremoved.
ThisantibodyisshippedwithitsantigenFREEofcharge!
- Peptide(C)ETQMENYDKHVTYNAERS,correspondingtoaminoacidresidues542-559ofratKCNN2 (Accession P70604).Intracellular,C-terminalpart.
- Westernblotanalysis ofratbrainmembranes:1. Anti-KCNN2(KCa2.2,SK2) Antibody#APC-028),(1:200).
2.Anti-KCNN2(KCa2.2,SK2)Antibody,preincubatedwiththenegativecontrolantigen.HumanJurkatTcells(1.5µg/ml)(Desai,R. etal. (2000) J.Biol.Chem. 275,39954.).
Humanandmouseheart(Xu,Y. etal. (2003) J.Biol.Chem. 278, 49085.).
- Rathippocampalslices(2µg/ml)(Kramar,E.A. etal. (2004) J.Neurosci. 24, 5151.).
- ExpressionofKCNN2(SK2)inratcerebralcortexImmunohistochemicalstainingofKCNN2 channelsusing Anti-KCNN2(KCa2.2,SK2) Antibody (#APC-028)inratcerebralcortex.Pictureshowingthethethirdlayer.Notethatbothneural(blackarrows)andglialcells(greenarrows)showintensestaining.ReactionproductisredandcounterstainisH&E.
- Ratneuronsfromhippocampus(1:200)(Wang,W. etal. (2011) Neuropharmacology 60, 901.).
- 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.
Anti-KCNN2(KCa2.2,SK2)Antibody(#APC-028)isahighlyspecificantibodydirectedagainstanepitopeoftheratprotein.Theantibodycanbeusedinwesternblot,immunocytochemistry,immunohistochemistry,andimmunoprecipitationapplications.IthasbeendesignedtorecognizeKCNN2fromhuman,rat,andmousesamples.