Apoptosis, or programmed cell death, is related to many diseases, such as cancer. Apoptosis is triggered by a variety of stimuli, including members of the TNF family, and prevented by the inhibitor of apoptosis (IAP) proteins. IAP proteins form a conserved gene family that binds to and inhibits cell death proteases. A novel IAP protein was recently identified and designated Survivin (also referred to as apoptosis inhibitor 4 (API4) and TIAP). Survivin interacts with the processed form of caspase-3 and inhibits its proteolytic activity. Survivin is predominantly expressed in tissues of embryos, transformed cell lines, and many human cancers and lymphomas.
This IgG fraction antibody was prepared from whole rabbit serum produced by repeated immunizations with a synthetic peptide corresponding to a region near the carboxy terminus of human Survivin protein.