BID is a death agonist that heterodimerizes with either agonist BAX or antagonist BCL2. Bid is a member of the BCL-2 family of cell death regulators. BID is a mediator of mitochondrial damage induced by caspase-8 (CASP8); CASP8 cleaves this encoded protein, and the COOH-terminal part translocates to mitochondria where it triggers cytochrome c release. BID is also a pro-apoptotic member of the Bcl 2 family. BID usually exists in an inactive form in the cytosolic fraction of living cells and becomes cleaved and activated by caspase 8 in response to TNF alpha or Fas ligand. Once BID is cleaved, the C-terminal 15 kDa fragment of BID (p15) translocates onto mitochondria and is sufficient to trigger cytochrome c release, resulting in cell apoptosis. BID serves as a direct molecular link between caspase 8 activation and mitochondrial death machinery.
⚠WARNING: This product can expose you to chemicals including mercury, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.