Biochem/physiol Actions
When cells receive apoptotic stimuli, such as activation of the TNFα/Fas cell surface receptor, caspase 8 activation, Bid processing and its translocation to the mitochondria ensue. As a result mitochondria release cytochrome c which then binds to Apaf-1, the mammalian Ced-4 homologue, together with dATP. The resultant complex recruits caspase 9 leading to its activation. It then cleaves downstream caspases such as caspase 3, 6, and 7, initiating the caspase cascade. Caspase 9 exhibits basal activity. It can be further activated via interaction of its N-terminal prodomain with the activator protein Apaf-1 in the presence of cytochrome c and dATP. Caspases have been implicated in many disorders including cancer, inflammatory disease, neurodegenerative diseases, stroke and myocardial infarction.
Unit Definition
One unit will cleave 1.0 nmol of Ac-Leu-Glu-His-Asp-AFC per hr at 25 °C at pH 6.5.
Physical form
Solution in 10% sucrose containing 50 mM HEPES, pH 7.5, 5 mM DTT, 0.1% CHAPS, 1 mM EDTA, 50 mM NaCl.
- UPC:
- 51202805
- Condition:
- New
- Weight:
- 1.00 Ounces
- HazmatClass:
- No
- WeightUOM:
- LB
- MPN:
- C8726-25UG
