Purity | Partiallypurifiedrecombinantcaspase3withafulllengthHIS-6-tag.Approximately10-20%caspase3protein.TheremainderisE.Coliproteins.Approximately0.8-2mgtotalprotein/Uofactivity;E.Coliproteinshavenoreactivity. |
SpecificActivity | Oneunitoftherecombinantcaspase-3istheenzymeactivitythatcleaves1nmolofthecaspasesubstrateDEVD-pNA(pNA:pnitroanaline)perhourat37°Catsaturatedsubstrateconcentrations. |
EntrezGeneNumber | |
EntrezGeneSummary | Thisgeneencodesaproteinwhichisamemberofthecysteine-asparticacidprotease(caspase)family.Sequentialactivationofcaspasesplaysacentralroleintheexecution-phaseofcellapoptosis.Caspasesexistasinactiveproenzymeswhichundergoproteolyticprocessingatconservedasparticresiduestoproducetwosubunits,largeandsmall,thatdimerizetoformtheactiveenzyme.Thisproteincleavesandactivatescaspases6,7and9,andtheproteinitselfisprocessedbycaspases8,9and10.Itisthepredominantcaspaseinvolvedinthecleavageofamyloid-beta4Aprecursorprotein,whichisassociatedwithneuronaldeathinAlzheimer"sdisease.Alternativesplicingofthisgeneresultsintwotranscriptvariantsthatencodethesameprotein. |
GeneSymbol | - CASP3
- apopain
- CASP-3
- procaspase3
- CPP32B
- SCA-1
- CPP32
- Apopain
- CPP-32
- Yama
- EC3.4.22.56[Contains:Caspase-3subunitp17
- Caspase-3subunitp12].
|
UniProtNumber | |
UniProtSummary | FUNCTION:SwissProt:P42574#InvolvedintheactivationcascadeofcaspasesresponsIBLeforapoptosisexecution.Attheonsetofapoptosisitproteolyticallycleavespoly(ADP-ribose)polymerase(PARP)ata"216-Asp--Gly-217"bond.Cleavesandactivatessterolregulatoryelementbindingproteins(SREBPs)betweenthebasichelix-loop-helixleucinezipperdomainandthemembraneattachmentdomain.Cleavesandactivatescaspase-6,-7and-9.Involvedinthecleavageofhuntingtin. SIZE:277aminoacids;31608Da SUBUNIT:Heterotetramerthatconsistsoftwoanti-parallelarrangedheterodimers,eachoneformedbya17kDa(p17)anda12kDa(p12)subunit. SUBCELLULARLOCATION:Cytoplasm. TISSUESPECIFICITY:Highlyexpressedinlung,spleen,heart,liverandkidney.Moderatelevelsinbrainandskeletalmuscle,andlowintestis.Alsofoundinmanycelllines,highestexpressionincellsoftheimmunesystem. PTM:CleavagebygranzymeB,caspase-6,caspase-8andcaspase-10generatesthetwoactivesubunits.Additionalprocessingofthepropeptidesislikelyduetotheautocatalyticactivityoftheactivatedprotease.Activeheterodimersbetweenthesmallsubunitofcaspase-7proteaseandthelargesubunitofcaspase-3alsooccurandviceversa. SIMILARITY:SwissProt:P42574##BelongstothepeptidaseC14family. |