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Western blot analysis of recombinant caspase-3 in the presence (Lane 1) and absence (Lane 2) of blocking peptide.
Anti-Caspase 3, large subunit & proform
| Species Reactivity | Key Applications | Host | Format | Antibody Type |
|---|---|---|---|---|
| H, M, R | WB | Rabbit | Affinity Purified | Polyclonal Antibody |
Description:
Anti-Caspase 3, large subunit & proform
Trade Name:
Chemicon (Millipore)
Specificity:
AB1899 detects procaspase-3 (32 kDa) and the cleaved p20 fragment in cells undergoing apoptosis.
Molecular Weight:
45 kDa full length, 32-35 kDa partial intermediate and the cleaved p17/20 kDa fragment in cells undergoing apoptosis
Epitope:
Large subunit & proform
Immunogen:
Synthetic peptide
Background Information:
Caspase-3 (CPP32, Apopain) is the most extensively studied apoptotic protein. Caspase-3 is synthesized as an inactive proenzyme (32 kDa) that is processed in cells undergoing apoptosis by self-proteolysis and/or cleavage by another upstream protease. The processed form of caspase-3 consists of large (17 kDa) and small (12 kDa) subunits which associate to form an active enzyme. The active caspase-3 proteolytically cleaves and activates other caspases, as well as relevant targets in the cells such as PARP and DFF.
Species Reactivity:
- Human
- Mouse
- Rat
Application Notes:
Western blot:
A 1:100-1:200 dilution of a previous lot was used in WB.
Optimal working dilutions must be determined by end user.
A 1:100-1:200 dilution of a previous lot was used in WB.
Optimal working dilutions must be determined by end user.
Control:
Skin/Tumor, Embryo
Purification Method:
Affinity purified immunoglobulin
Presentation:
Purified rabbit polyclonal liquid in PBS, pH 7.2, containing 50% glycerol, 1% BSA and 0.02% thimerosal.
Storage Conditions:
Stable for 1 year at -20ºC from date of receipt.
Handling Recommendations: Upon receipt and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance.
Handling Recommendations: Upon receipt and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance.
UniProt Number:
Entrez Gene Number:
Gene Symbol:
- CASP3
- CPP-32
- Yama
- CASP-3
- CPP32B
- SCA-1
- CPP32
- EC 3.4.22.56 [Contains: Caspase-3 subunit p17 Caspase-3 subunit p12].
Alternate Names:
- apopain
- procaspase3
Usage Statement:
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
Key Applications:
Western Blotting
Entrez Gene Summary:
This gene encodes a protein which is a member of the cysteine-aspartic acid protease (caspase) family. Sequential activation of caspases plays a central role in the execution-phase of cell apoptosis. Caspases exist as inactive proenzymes which undergo proteolytic processing at conserved aspartic residues to produce two subunits, large and small, that dimerize to form the active enzyme. This protein cleaves and activates caspases 6, 7 and 9, and the protein itself is processed by caspases 8, 9 and 10. It is the predominant caspase involved in the cleavage of amyloid-beta 4A precursor protein, which is associated with neuronal death in Alzheimer's disease. Alternative splicing of this gene results in two transcript variants that encode the same protein.
UniProt Summary:
FUNCTION: SwissProt: P42574 # Involved in the activation cascade of caspases responsible for apoptosis execution. At the onset of apoptosis it proteolytically cleaves poly(ADP-ribose) polymerase (PARP) at a '216-Asp- -Gly-217' bond. Cleaves and activates sterol regulatory element binding proteins (SREBPs) between the basic helix-loop- helix leucine zipper domain and the membrane attachment domain. Cleaves and activates caspase-6, -7 and -9. Involved in the cleavage of huntingtin.
SIZE: 277 amino acids; 31608 Da
SUBUNIT: Heterotetramer that consists of two anti-parallel arranged heterodimers, each one formed by a 17 kDa (p17) and a 12 kDa (p12) subunit.
SUBCELLULAR LOCATION: Cytoplasm.
TISSUE SPECIFICITY: Highly expressed in lung, spleen, heart, liver and kidney. Moderate levels in brain and skeletal muscle, and low in testis. Also found in many cell lines, highest expression in cells of the immune system.
PTM: Cleavage by granzyme B, caspase-6, caspase-8 and caspase-10 generates the two active subunits. Additional processing of the propeptides is likely due to the autocatalytic activity of the activated protease. Active heterodimers between the small subunit of caspase-7 protease and the large subunit of caspase-3 also occur and vice versa.
SIMILARITY: SwissProt: P42574 ## Belongs to the peptidase C14 family.
SIZE: 277 amino acids; 31608 Da
SUBUNIT: Heterotetramer that consists of two anti-parallel arranged heterodimers, each one formed by a 17 kDa (p17) and a 12 kDa (p12) subunit.
SUBCELLULAR LOCATION: Cytoplasm.
TISSUE SPECIFICITY: Highly expressed in lung, spleen, heart, liver and kidney. Moderate levels in brain and skeletal muscle, and low in testis. Also found in many cell lines, highest expression in cells of the immune system.
PTM: Cleavage by granzyme B, caspase-6, caspase-8 and caspase-10 generates the two active subunits. Additional processing of the propeptides is likely due to the autocatalytic activity of the activated protease. Active heterodimers between the small subunit of caspase-7 protease and the large subunit of caspase-3 also occur and vice versa.
SIMILARITY: SwissProt: P42574 ## Belongs to the peptidase C14 family.
Brand Family:
Chemicon
Product Name:
Anti-Caspase 3, large subunit & proform
Concentration:
0.2 mg/mL
Antibody Type:
Polyclonal Antibody
Qty/Pk:
50 μg
Format:
Affinity Purified
Host:
Rabbit