This gene is a member of the Period family of genes and is expressed in a circadian pattern in the suprachiasmatic nucleus, the primary circadian pacemaker in the mammalian brain. Genes in this family encode components of the circadian rhythms of locomotor activity, metabolism, and behavior. Circadian expression in the suprachiasmatic nucleus continues in constant darkness, and a shift in the light/dark cycle evokes a proportional shift of gene expression in the suprachiasmatic nucleus. The specific function of this gene is not yet known.
PER3; period homolog 3 (Drosophila); period (Drosophila) homolog 3; period circadian protein homolog 3; Cell growth inhibiting gene 13 protein; Circadian clock protein PERIOD 3; GIG13; gPER3; mPer3; Period homolog 3; Period3; hPER3; period 3; period circadian protein 3; growth-inhibiting protein 13; cell growth-inhibiting gene 13 protein; circadian clock protein; period circadian clock 3