Cited by 861Circadian rhythm and melatoninSleep and Wakefulness ResearchSleep and Work-Related Fatigue

Functional consequences of a CKIδ mutation causing familial advanced sleep phase syndrome

Xu, Ying, Padiath, Quasar S., Shapiro, Robert E., Jones, Christopher R., Wu, Susan C., Saigoh, Noriko, Saigoh, Kazumasa, Ptáček, Louis J. +1 more·2005·Nature

Abstract

Familial advanced sleep phase syndrome (FASPS) is a human behavioural phenotype characterized by early sleep times and early-morning awakening. It was the first human, mendelian circadian rhythm variant to be well-characterized, and was shown to result from a mutation in a phosphorylation site within the casein kinase I (CKI)-binding domain of the human PER2 gene. To gain a deeper understanding of the mechanisms of circadian rhythm regulation in humans, we set out to identify mutations in human subjects leading to FASPS. We report here the identification of a missense mutation (T44A) in the human CKIdelta gene, which results in FASPS. This mutant kinase has decreased enzymatic activity in vitro. Transgenic Drosophila carrying the human CKIdelta-T44A gene showed a phenotype with lengthened circadian period. In contrast, transgenic mice carrying the same mutation have a shorter circadian period, a phenotype mimicking human FASPS. These results show that CKIdelta is a central component in the mammalian clock, and suggest that mammalian and fly clocks might have different regulatory mechanisms despite the highly conserved nature of their individual components.

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Crossref · 10.1038/nature03453

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Authors
Xu, Y., Padiath, Q. S., Shapiro, R. E., Jones, C. R., Wu, S. C., Saigoh, N., Saigoh, K., Ptáček, L. J., & Fu, Y.-H.
Affiliations
  • University of California, San Francisco (US)
  • University of Vermont (US)
  • University of Utah (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
Fu, Ying-Hui
Venue
Nature
Published
2005-03
Volume
434
Issue
7033
Pages
640-644
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1974495707
Cited by
861
References
30
Citations by year
2026: 14 · 2025: 19 · 2024: 33 · 2023: 27 · 2022: 40 · 2021: 33 · 2020: 48 · 2019: 40 · 2018: 37 · 2017: 38 · 2016: 33 · 2015: 32 · 2014: 43 · 2013: 53 · 2012: 42
FWCI
20.52
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • Deutsches Krebsforschungszentrum
  • Stryker
  • National Institutes of Health
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
Keywords
CK1δ, circadian rhythm, melatonin rhythm, transgenic Drosophila, transgenic mice, circadian period, clock gene regulation, sleep disorders
MeSH terms
Amino Acid Sequence, Animals, Caseins, Circadian Rhythm, Darkness, Drosophila melanogaster, Female, Humans, Light, Male, Mice, Transgenic, Molecular Sequence Data, Motor Activity, Pedigree, Phenotype, Phosvitin, Sleep Wake Disorders, Syndrome, Time Factors, Mutation, Missense, Animals, Genetically Modified, Casein Kinase Idelta, Mice

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