OnCo

PER1 (Period circadian protein homolog 1) is a protein that switches other genes on and off. In the public catalogues the evidence so far is association rather than a proven role. Tied to Skin cancer, Lung cancer, Gastric & gastro-oesophageal junction cancer and 2 more. This dossier gathers the 0 products (0 approved), 0 trials, 0 pathways and 0 resistance routes in the corpus that involve it, with external identifiers so it can be joined to UniProt, ChEMBL, Open Targets and the rest of biology.

Biology

Transcriptional repressor which forms a core component of the circadian clock. The circadian clock, an internal time-keeping system, regulates various physiological processes through the generation of approximately 24 hour circadian rhythms in gene expression, which are translated into rhythms in metabolism and behaviour. It is derived from the Latin roots 'circa' (about) and 'diem' (day) and acts as an important regulator of a wide array of physiological functions including metabolism, sleep, body temperature, blood pressure, endocrine, immune, cardiovascular, and renal function. Consists of two major components: the central clock, residing in the suprachiasmatic nucleus (SCN) of the brain, and the peripheral clocks that are present in nearly every tissue and organ system. Both the central and peripheral clocks can be reset by environmental cues, also known as Zeitgebers (German for 'timegivers'). The predominant Zeitgeber for the central clock is light, which is sensed by retina and signals directly to the SCN. Location: Nucleus; Cytoplasm (UniProt). Locus 17p13.1 (HGNC).

Where it is found
  • Skin cancer: Open Targets association 0.56 with skin cancer (MONDO_0002898)
  • Lung cancer: Open Targets association 0.53 with lung cancer (MONDO_0008903)
  • Gastric & gastro-oesophageal junction cancer: Open Targets association 0.51 with gastric cancer (MONDO_0001056)
  • Colorectal cancer: Open Targets association 0.50 with colorectal cancer (MONDO_0005575)
  • Melanoma: Open Targets association 0.56 with melanoma (MONDO_0005105)
Class: transcription · Gene: PER1 · Facts checked 2026-09-23 · Target page

External identifiers

Built from HGNC, Ensembl, UniProt and ChEMBL ids

Products by modality and phase

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Resistance routes

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Companion diagnostics

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Preclinical models

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Literature

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Open in Europe PMC

Query for this target: (TITLE:"PER1" OR ABSTRACT:"PER1" OR TITLE:"period circadian regulator 1" OR ABSTRACT:"period circadian regulator 1" OR TITLE:"Period circadian protein homolog 1" OR ABSTRACT:"Period circadian protein homolog 1" OR TITLE:"RIGUI" OR ABSTRACT:"RIGUI") AND (cancer OR tumor OR tumour OR oncology OR carcinoma OR lymphoma OR leukemia OR leukaemia OR myeloma OR sarcoma OR melanoma OR glioma). Results are unfiltered search hits about PER1, not a curated reading list.

Export

The dossier as machine-readable JSON: identifiers from HGNC, Ensembl, UniProt and ChEMBL, products with status, trials, pathways, hotspots, open questions and assays. The full entity record is in the open API at /api/v1/entities/per1.json. Licence CC BY-NC 4.0.