Description
CatalogueNumber	CC126
BrandFamily	Chemicon®
TradeName	Chemicon
Description	Caspase1,recombinanthumanactive
Overview	Caspase-1(alsoknownasICE,Interleukin-1beta-ConvertingEnzyme)istheprototypicalmemberofthecaspasefamilyofcysteineproteases.Caspase-1existsincellsasaninactive45kDapro-enzyme.Thepro-enzymeismaturedbyproteolysistoyieldlarge(20kD)andsmall(10kD)subunits.Theactiveenzymeisaheterotetramerconsistingoftwolargeandtwosmallsubunits.Todatethemechanismofregulationofcaspase-1activationiscomplexandpoorlyunderstood.InTHP-1cells,alargeproportionofthecaspase-1ispresentintheinactivepro-enzymeform. Theactiverecombinanthumancaspase-1wasexpressedinE.coli.Theexpressedcaspase-1spontaneouslyundergoesautoprocessingtoyieldthesubunitscharacteristicofthenativeenzyme.Therecombinantcaspase-1preferentiallycleavesthesubstratesconsistingofconsensussequenceYVAD(e.g.,YVAD-AFCandYVAD-pNA).Therecombinantenzymecanalsobeusedasapositivecontrolincaspaseassaysorindeterminingthespecificityofcaspasesubstrates. Recommendedusage:0.5-1unitforfluorometriccaspaseassaysand2-4unitsforcolorimetriccaspaseassays.Optimalworkingdilutionsmustbedeterminedbyenduser.

ProductInformation
Presentation	Lyophilized.Reconstitutein25μLPBScontaining15%glycerol.

StorageandShippingInformation
StorageConditions	Maintainunopenedandrehydratedproductat-70°Cinundiluted,freeze-thawprotected,tightlysealedaliquots.Avoidrepeatedfreeze/thawcycles.Productstablefor6monthsfromdateofpurchasedifhandledappropriately.

Applications
KeyApplications	ActivityAssay

BIOLOGicalInformation
Purity	Partiallypurifiedrecombinantcaspase3withafulllengthHIS-6-tag.Approximately10-20%caspase1protein.TheremainderisE.Coliproteins.Approximately0.8-2mgtotalprotein/Uofactivity;E.Coliproteinshavenoreactivity.
EntrezGeneNumber	NM_001223.3 NM_033292.2 NM_033293.2 NM_033294.2 NM_033295.2
EntrezGeneSummary	Thisgeneencodesaproteinwhichisamemberofthecysteine-asparticacidprotease(caspase)family.Sequentialactivationofcaspasesplaysacentralroleintheexecution-phaseofcellapoptosis.Caspasesexistasinactiveproenzymeswhichundergoproteolyticprocessingatconservedasparticresiduestoproduce2subunits,largeandsmall,thatdimerizetoformtheactiveenzyme.ThisgenewasidentifiedbyitsABIlitytoproteolyticallycleaveandactivatetheinactiveprecursorofinterleukin-1,acytokineinvolvedintheprocessessuchasinflammation,septicshock,andwoundhealing.Thisgenehasbeenshowntoinducecellapoptosisandmayfunctioninvariousdevelopmentalstages.StudiesofasimilargeneinmousesuggestaroleinthepathogenesisofHuntingtondisease.Alternativesplicingofthisgeneresultsinfivetranscriptvariantsencodingdistinctisoforms.
GeneSymbol	CASP1 IL1BCE P45 IL-1BC IL1BC p45 IL1B-convertase CASP-1 ICE EC3.4.22.36[Contains:Caspase-1subunitp20 Caspase-1subunitp10].
UniProtNumber	P29466
UniProtSummary	FUNCTION:SwissProt:P29466#ThiolproteasethatcleavesIL-1betabetweenanAspandanAla,releasingthematurecytokinewhichisinvolvedinavarietyofinflammatoryprocesses.Importantfordefenseagainstpathogens.Cleavesandactivatessterolregulatoryelementbindingproteins(SREBPs).Canalsopromoteapoptosis. SIZE:404aminoacids;45159Da SUBUNIT:Heterotetramerthatconsistsoftwoanti-parallelarrangedheterodimers,eachoneformedbya20kDa(p20)anda10kDa(p10)subunit.Thep20subunitcanalsoformaheterodimerwiththeepsilonisoformwhichthenhasaninhibitoryeffect.Maybeacomponentoftheinflammasome,aproteincomplexwhichalsoincludesPYCARD,CARD8andNALP2andwhosefunctionwouldbetheactivationofproinflammatorycaspases. SUBCELLULARLOCATION:Cytoplasm. TISSUESPECIFICITY:Expressedinlargeramountsinspleenandlung.Detectedinliver,heart,smallintestine,colon,thymus,prostate,skeletalmuscle,peripheralbloodleukocytes,kidneyandtestis.Noexpressioninthebrain. PTM:Thetwosubunitsarederivedfromtheprecursorsequencebyanautocatalyticmechanism. SIMILARITY:SwissProt:P29466##BelongstothepeptidaseC14family.&Contains1CARDdomain.

PhysicochemicalInformation

Dimensions

MaterialsInformation

MaterialsInformation

Millipore 提供三种不同的 Immobilon PVDF 膜，是针对不同的蛋白质印迹应用的理想选择。 现在我们还 提供采用按规格裁切的印迹方片膜和两层过滤纸组成的印迹三明治。   与硝酸纤维素膜相比，Immobilon 膜具有多种优点。 它们不易破裂或卷 曲，便于裁剪且在切割过程中不会碎裂。 它们还有低背景、广泛溶剂相容性以及优异的着色能力。 此外，它们可以重复检测。 Immobilon-P 膜（沃比森-供应） ·         0.45μm 孔径 ·         建议用于大多数免疫印迹，特别在蛋 白质大于 20kDa 时 ·         Millipore 的快速免疫检测实验方法不需要膜封闭并缩短洗涤时间，将检测时间至少减少了两个小时，而不致降低灵敏 度或特异性 用于高通量实验室的印迹三明治 ·         当您需要处理多个印迹时，印迹三明治是一种便利省时的选择。 我们的印迹三明 治包含多片 Immobilon-P 膜，其中插入了按规格裁切的多张层析级印迹纸。 转印滤纸 ·         按照大多数免疫印迹尺寸进行裁切的层析级转印滤纸。 Immobilon-PSQ 膜（沃比森-供应） ·         0.2μm 孔径和大的内表面面积 ·         较其它膜具有更高的 蛋白质吸附率和测序得率 ·         建议用于小于 20kDa 的印迹蛋白质 ·         防止小分子量的蛋白质的渗漏 Immobilon-FL 膜（沃比森-供应） ·        针对荧光应用进行优化的转印膜 ·         极低的背景提高了所 有荧光检测实验的灵敏度 ·         与所有常用的荧光探针（所有激发和发射波长）兼容 ·         是多态性检测和化学荧光应用的理想选择