Period Circadian Regulator 1
RIGUI
PER
Period Circadian Protein Homolog 1
Circadian Clock Protein PERIOD 1
Period Circadian Clock 1
HPER1
Circadian Pacemaker Protein RIGUI
Circadian Pacemaker Protein Rigui
Period, Drosophila, Homolog Of
Period (Drosophila) Homolog 1
Period Homolog 1 (Drosophila)
Period Homolog 1
KIAA0482
HPER
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. This gene is upregulated by CLOCK/ARNTL heterodimers but then represses this upregulation in a feedback loop using PER/CRY heterodimers to interact with CLOCK/ARNTL. Polymorphisms in this gene may increase the risk of getting certain cancers. Alternative splicing has been observed in this gene; however, these variants have not been fully described. [provided by RefSeq, Jan 2014]
Forensic Context
A study in humans demonstrated that the PER1 exhibits statistically significant rhythmic expression in blood, with peak expression occurring between 08:00 h and 10:00 h [Lech et al. DOI:10.1016/J.Fsigen.2015.12.008].