Programmed Cell Death Protein 6 Interacting Protein (PDCD6IP)

Programmed cell death 6-interacting protein is a protein thought to participate in programmed cell death. Studies using mouse cells have shown that overexpression of this protein can block apoptosis. In addition, the product of this gene binds to the product of the PDCD6 gene, a protein required for apoptosis, in a calcium-dependent manner.

This gene product also binds to endophilins, proteins that regulate membrane shape during endocytosis. Overexpression of this gene product and endophilins results in cytoplasmic vacuolization which may be partly responsible for the protection against cell death.Several alternatively spliced transcript variants encoding different isoforms have been found for this gene.