Period Gene Article Index for
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Period Gene
APPAREL
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  HGNCid 8845
  Symbol PER1
  AltSymbols PER
  EntrezGene 5187
  OMIM 602260
  RefSeq NM_002616
  UniProt O15534
  Chromosome 17
  Arm p
  Band 12


  Name period homolog 2 (Drosophila)
  HGNCid 8846
  Symbol PER2
  EntrezGene 8864
  OMIM 603426
  RefSeq NM_003894
  UniProt O15055
  Chromosome 2
  Arm q
  Band 373


  Name period homolog 3 (Drosophila)
  HGNCid 8847
  Symbol PER3
  EntrezGene 8863
  OMIM 603427
  RefSeq NM_016831
  UniProt P56645
  Chromosome 1
  Arm p
  Band 3623


Period ('''per''') is a gene in Drosophilia which encodes a protein, PER , regulating Circadian Rhythm . There are known alleles of the per gene that can make the circadian cycle longer or shorter than the usual cycle (which is around 24 hours).


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