Programmed Cell Death Protein 5 (PDCD5)

PDCD5 encodes a protein expressed in tumor cells during apoptosis independent of the apoptosis-inducing stimuli. Prior to apoptosis induction, this gene product is distributed in both the nucleus and cytoplasm. Once apoptosis is induced, the level of this protein increases and by relocation from the cytoplasm, it accumulates in the nucleus. Although its exact function is not defined, this protein is thought to play an early and universal role in apoptosis.This TFAR19 gene encodes a protein of 125 amino acids, with an ATG initiation codon at nucleotides 25-27. It contains a cAMP- and cGMP-dependent protein kinase phosphorylation site, multiple protein kinase C phosphorylation sites, and a casein kinase II phosphorylation site. It shares significant homology to the corresponding proteins of species ranging from yeast to mice.