Period Circadian Protein Homolog 1

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** Period circadian protein homolog 1 (1290 aa, ~136 kDa) is encoded by the human PER1 gene. This protein is involved in the modulation of circadian rhythms.

**Synonyms:** - Circadian Clock Protein PERIOD 1 - Circadian Pacemaker Protein Rigui - PER1 - Period Circadian Clock 1 - hPER1