Cited by 27Circadian rhythm and melatoninAdvanced Frequency and Time StandardsPlant Molecular Biology Research

CK1 and GSK3 in the Drosophila and Mammalian Circadian Clock

Harms, Emily, Young, Michael W., Saez, Lino·2003·Novartis Foundation Symposia

Abstract

Two kinases, DOUBLETIME and SHAGGY, have been shown to play a role in the circadian clock. DOUBLETIME, the Drosophila orthologue of casein kinase 1, can phosphorylate PERIOD in the cytoplasm and in the nucleus. This phosphorylation destabilizes PERIOD in both locations and sets patterns of both cytoplasmic accumulation and nuclear turnover. Cytoplasmic phosphorylation postpones accumulation of PERIOD and affects timing of nuclear accumulation of PERIOD/ TIMELESS complexes. SHAGGY, the Drosophila orthologue of glycogen synthase kinase 3, phosphorylates TIMELESS and promotes nuclear translocation of PERIOD/ TIMELESS complexes. Thus, the opposing effects of these two kinases in the cytoplasm are crucial for establishing the approximately 24 h period of circadian rhythmicity in Drosophila. Casein Kinase 1 has been shown to be a component of the circadian clock in mammals. Recent studies are also pointing to a role for glycogen synthase kinase 3 in the mammalian clock.

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Crossref · 10.1002/0470090839.ch19

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  • PER and CRY proteins are phosphorylated by Casein Kinase I ε and δ and Glycogen Synthase Kinase 3β, leading to changes in their stability, association, and nuclear entry.

    “The PER and CRY proteins are translated in the cytoplasm, and are phosphorylated by Casein Kinase I ε and δ (CK1) and Glycogen Synthase Kinase 3β (GSK3β), leading to changes in their stability, association, and nuclear entry (Harms et al., 2003; Iitaka et al., 2005; Knippschild et al., 2005; Kurabayashi et al., 2006).”

    From Circadian genes, rhythms and the biology of mood disorders (2007) · cites this paper as Harms et al., 2003

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Authors
Harms, E., Young, M. W., & Saez, L.
Affiliations
Rockefeller University (US)
Venue
Novartis Foundation Symposia
Publisher
Wiley
Published
2003-10-28
Volume
253
Pages
267-280
ISSN
  • 1528-2511 (ISSN-L)
  • 1935-4657
OpenAlex
W1521928376
Cited by
27
References
0
Citations by year
2018: 2 · 2014: 4 · 2012: 3
Type
other
Language
en
Open access
closed
Locations
  • Novartis Foundation symposium (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of General Medical Sciences (GM-54339)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Advanced Frequency and Time Standards
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Molecular Biology Research
Keywords
circadian clock, casein kinase 1, glycogen synthase kinase-3, Shaggy, PERIOD protein, protein phosphorylation, protein degradation, nuclear translocation, Drosophila, mammalian circadian clock
MeSH terms
Amino Acid Sequence, Animals, Circadian Rhythm, Drosophila, Mammals, Molecular Sequence Data, Mutation, Phosphorylation, Protein Kinases, Genes, Insect, Glycogen Synthase Kinase 3, Casein Kinases

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