Emerging evidence indicates that the Gadd45 family of genes play a unique and critical role as sensors of stress, including genotoxic, physiological and oncogenic stress. The stress response Gadd45 family of genes (Gadd45a, Gadd45b & Gadd45g), discovered by Dr. Liebermann and other researchers, encode for small (18 kd) nuclear/cytoplasmic proteins). These genes are rapidly induced by a wide variety of endogenous and exogenous stress stimuli. In spite of marked similarities, Gadd45 genes are regulated differently & exhibit functional diversity. Gadd45 are implicated in cell cycle arrest, DNA...