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Gene: PER2 (period circadian regulator 2) Homo sapiens
Symbol: PER2
Name: period circadian regulator 2
RGD ID: 737181
Description: Predicted to have several functions, including enzyme binding activity; nucleic acid binding activity; and transcription factor binding activity. Predicted to be involved in several processes, including entrainment of circadian clock by photoperiod; monocarboxylic acid metabolic process; and regulation of gene expression. Localizes to nucleus. Implicated in advanced sleep phase syndrome and advanced sleep phase syndrome 1.
Type: protein-coding
RefSeq Status: REVIEWED
Also known as: circadian clock protein PERIOD 2; FASPS; FASPS1; hPER2; KIAA0347; period 2; period circadian clock 2; period circadian protein 2; period circadian protein homolog 2; period homolog 2
Mus musculus (house mouse) : Per2 (period circadian clock 2)  MGI  Alliance
Rattus norvegicus (Norway rat) : Per2 (period circadian regulator 2)  Alliance
Chinchilla lanigera (long-tailed chinchilla) : Per2 (period circadian regulator 2)
Pan paniscus (bonobo/pygmy chimpanzee) : PER2 (period circadian regulator 2)
Canis lupus familiaris (dog) : PER2 (period circadian regulator 2)
Ictidomys tridecemlineatus (thirteen-lined ground squirrel) : Per2 (period circadian regulator 2)
Sus scrofa (pig) : PER2 (period circadian regulator 2)
Chlorocebus sabaeus (African green monkey) : PER2 (period circadian regulator 2)
Heterocephalus glaber (naked mole-rat) : Per2 (period circadian regulator 2)
more info ...
Allele / Splice: See ClinVar data
Latest Assembly: GRCh38 - Human Genome Assembly GRCh38
Human AssemblyChrPosition (strand)SourceGenome Browsers
GRCh38.p13 Ensembl2238,244,044 - 238,290,102 (-)EnsemblGRCh38hg38GRCh38
GRCh382238,244,038 - 238,290,102 (-)NCBIGRCh38GRCh38hg38GRCh38
GRCh372239,152,679 - 239,198,678 (-)NCBIGRCh37GRCh37hg19GRCh37
Build 362238,817,418 - 238,861,946 (-)NCBINCBI36hg18NCBI36
Build 342238,934,685 - 238,979,092NCBI
Celera2232,865,233 - 232,909,762 (-)NCBI
Cytogenetic Map2q37.3NCBI
HuRef2230,943,837 - 230,988,232 (-)NCBIHuRef
CHM1_12239,158,528 - 239,203,056 (-)NCBICHM1_1
JBrowse: View Region in Genome Browser (JBrowse)

Disease Annotations
Gene-Chemical Interaction Annotations
Gene Ontology Annotations
Phenotype Annotations
References - curated
References - uncurated


Comparative Map Data
Position Markers
miRNA Target Status


RNA-SEQ Expression


Nucleotide Sequences
Protein Sequences
Clinical Variants

Additional Information

External Database Links
Nomenclature History
More on PER2
Alliance Gene
Ensembl Gene
JBrowse: hg19 hg38
HGNC Report
NCBI Genome Data Viewer

RGD Object Information
RGD ID: 737181
Created: 2004-02-06
Species: Homo sapiens
Last Modified: 2020-09-16
Status: ACTIVE


RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.