Product nameAnti-pro Caspase-3 antibody [E83-103]
See all pro Caspase-3 primary antibodies
DescriptionRabbit monoclonal [E83-103] to pro Caspase-3
This antibody only detects pro-form (35kD) of caspase-3, and does not recognize any cleaved caspases.
Tested applicationsSuitable for: ICC/IF, WB, IHC-P, IP, Flow Cytmore details
Species reactivityReacts with: Mouse, Human
A synthetic peptide corresponding to residues following Ser29 of human caspase-3 (N-terminus of p17 subunit).
- Jurkat whole cell lysate (ab7899) and human colon adenocarcinoma.
Rat: We have preliminary internal testing data to indicate this antibody may not react with this species. Please contact us for more information.
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents
This product is a recombinant rabbit monoclonal antibody.
Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
Storage bufferpH: 7.20
Preservative: 0.01% Sodium azide
Constituents: PBS, 50% Glycerol, 0.05% BSA
Concentration information loading...
PurityProtein A purified
Our Abpromise guarantee covers the use of ab32499 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|ICC/IF||Use a concentration of 5 µg/ml.|
|WB||1/10000. Detects a band of approximately 35 kDa (predicted molecular weight: 31 kDa).|
|IHC-P||Use at an assay dependent concentration.|
ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.
RelevanceCaspases are a family of cysteine proteases that are key mediators of programmed cell death or apoptosis. The precursor form of all caspases is composed of a prodomain, and large and small catalytic subunits. The active forms of caspases are generated by several stimuli including ligand-receptor interactions, growth factor deprivation and inhibitors of cellular functions. All known caspases require cleavage adjacent to aspartates to liberate one large and one small subunit, which associate into a2b2 tetramer to form the active enzyme. Gene for Caspase 3 also known as Yama, CPP32, and apopain codes for a 32-kDa protein. Caspase 3 cleaves the death substrate poly(ADP-ribose) polymerase (PARP) to a specific 85 kDa form observed during apoptosis and is inhibitable by the CrmA protein. Other Caspase 3 substrates include DNA-PK, actin, GAS2, and procaspase-6, etc. Caspase 3 is activated by cleavage events at Asp-28/Ser-29 (between N-terminal pro-domain) and Asp-175/Ser-176 (between large and small subunits) to generate a large subunit of 17-kDa and a small subunit of 12-kDa.
- CASP3 antibody
- Caspase 3 antibody
- Caspase 3 apoptosis related cysteine peptidase antibody
Lane 1: Wild-type HAP1 cell lysate
Lane 2: Wild-type HAP1 cell lysate + Staurosporine (1μM for 4h)
Lane 3: Caspase-3 knockout HAP1 cell lysate
Lane 4: Caspase-3 knockout HAP1 cell lysate + Staurosporine (1μM for 4h)
Lanes 1 - 4: Merged signal (red and green). Green - ab32499 observed at 35 kDa. Red - loading control, ab8245, observed at 37 kDa.
ab32499 was shown to specifically react with pro Caspase 3 when Caspase 3 knockout samples were used. Wild-type and Caspase 3 knockout samples (± Staurosporine treatment) were subjected to SDS-PAGE. ab32499 and ab8245 (loading control to GAPDH) were diluted to 1/1000 and 1/10000 respectively and incubated overnight at 4°C. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed (ab216776) secondary antibodies at 1/10000 dilution for 1 hour at room temperature before imaging.
Immunohistochemical analysis of paraffin-embedded human colon adenocarcinoma ab32499 at 1/250 dilution.
ICC/IF image of ab32499 stained HeLa cells. The cells were 4% formaldehyde fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab32499, 5µg/ml) overnight at +4°C. The secondary antibody (green) was ab96899, anti-rabbit DyLight® 488 used at a 1/250 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.
Overlay histogram showing Jurkat cells stained with ab32499 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab32499, 1/50 dilution) for 30 min at 22ºC. The secondary antibody used was anti-rabbit DyLight® 488 (ab96899) at 1/500 dilution for 30 min at 22ºC. Isotype control antibody (black line) was rabbit IgG (monoclonal) (1µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed.
All lanes : Anti-pro Caspase-3 antibody [E83-103] (ab32499) at 1/10000 dilution
Lane 1 : Jurkat cell lysate
Lane 2 : Jurkat cell lysate + Camptothecin
Predicted band size: 31 kDa
Observed band size: 35 kDa why is the actual band size different from the predicted?
This product has been referenced in:
- Luan L & Liang Z Tanshinone IIA protects murine chondrogenic ATDC5 cells from lipopolysaccharide-induced inflammatory injury by down-regulating microRNA-203a. Biomed Pharmacother 103:628-636 (2018). WB . Read more (PubMed: 29679904) »
- Yang T et al. lncRNA CCAT1 promotes cell proliferation, migration, and invasion by down-regulation of miR-143 in FTC-133 thyroid carcinoma cell line. Braz J Med Biol Res 51:e7046 (2018). Read more (PubMed: 29791590) »