Period (gene).html
 
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Identifiers
Symbol PER1
Alt. Symbols PER
Entrez 5187
HUGO 8845
OMIM 602260
RefSeq NM_002616
UniProt O15534
Other data
Locus Chr. 17 p12
Identifiers
Symbol PER2
Entrez 8864
HUGO 8846
OMIM 603426
RefSeq NM_003894
UniProt O15055
Other data
Locus Chr. 2 q37.3
Identifiers
Symbol PER3
Entrez 8863
HUGO 8847
OMIM 603427
RefSeq NM_016831
UniProt P56645
Other data
Locus Chr. 1 p36.23

Period (per) is a gene in Drosophilia which encodes a protein, PER, regulating circadian rhythm. There are some known alleles of the per gene that can make the circadian cycle longer or shorter than the usual cycle (which is around 24 hours). It is still uncertain how exactly this gene operates.

In humans, there are three known PER family genes: PER1, PER2, and PER3.

See also

External links

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