Cell Signaling Technology

Product Pathways - Apoptosis

Caspase-3 (8G10) Rabbit mAb #9665

Applications Reactivity Sensitivity MW (kDa) Isotype
W IP H M R Mk Endogenous 17, 19, 35 Rabbit IgG

Applications Key:  W=Western Blotting  IP=Immunoprecipitation
Reactivity Key:  H=Human  M=Mouse  R=Rat  Mk=Monkey
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.

Protocols

Specificity / Sensitivity

Caspase-3 (8G10) Rabbit mAb detects endogenous levels of full-length (35 kDa) and large fragment (17/19 kDa) of caspase-3 resulting from cleavage at aspartic acid 175.

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to amino-terminal residues adjacent to (Asp175) in human caspase-3.

Western Blotting

Western Blotting

Western blot analysis of extracts from HeLa cells, transfected with 100 nM SignalSilence® Control siRNA (Fluorescein Conjugate) #6201 (-) or SignalSilence® Caspase-3 siRNA II (+), using Caspase-3 (8G10) Rabbit mAb and α-Tubulin (11H10) Rabbit mAb #2125. Caspase-3 (8G10) Rabbit mAb confirms silencing of caspase-3 expression, while the α-Tubulin (11H10) Rabbit mAb is used to control for loading and specificity of caspase-3 siRNA.

Western Blotting

Western Blotting

Western blot analysis of extracts from HeLa cells, transfected with 100 nM SignalSilence® Control siRNA (Fluorescein Conjugate) #6201 (-) or SignalSilence® Caspase-3 siRNA I (+), using Caspase-3 (8G10) Rabbit mAb and p42 MAPK Antibody #9108. Caspase-3 (8G10) Rabbit mAb confirms silencing of caspase-3 expression, while the p42 MAPK Antibody is used to control for loading and specificity of caspase-3 siRNA.

Western Blotting

Western Blotting

Western analysis of HeLa (human) and NIH/3T3 (mouse) cell extracts, untreated and treated with 1 uM staurosporine (3hrs) in vivo, using Caspase-3 (8G10) Rabbit mAb.


IP

IP

Immunoprecipitation of cleaved caspase-3 from Jurkat cell extracts untreated (control) or treated with etoposide (25uM 5hrs) (apoptotic) using Caspase-3 (8G10) Rabbit mAb, and western probed with the same antibody.

Background

Caspase-3 (CPP-32, Apoptain, Yama, SCA-1) is a critical executioner of apoptosis, as it is either partially or totally responsible for the proteolytic cleavage of many key proteins, such as the nuclear enzyme poly (ADP-ribose) polymerase (PARP) (1). Activation of caspase-3 requires proteolytic processing of its inactive zymogen into activated p17 and p12 fragments. Cleavage of caspase-3 requires the aspartic acid residue at the P1 position (2).

  1. Fernandes-Alnemri, T. et al. (1994) J. Biol. Chem. 269, 30761-30764.
  2. Nicholson, D. W. et al. (1995) Nature 376, 37-43.

Application References

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Companion Products

Rabbit Monoclonals Produced Using Epitomics® Technology, U.S. Patent No. 5,675,063.


For Research Use Only. Not For Use In Diagnostic Procedures.

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