Evidence map›Paper›PMID 32101164›Full record

ArticleeLife2020

Dynamics at the serine loop underlie differential affinity of cryptochromes for CLOCK:BMAL1 to control circadian timing.

Jennifer L Fribourgh, Ashutosh Srivastava, Colby R Sandate, Alicia K Michael, Peter L Hsu, Christin Rakers, Leslee T Nguyen, Megan R Torgrimson, Gian Carlo G Parico, Sarvind Tripathi and 5 more

Open access · goldAbstract read
In one paragraph

Article in eLife, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
5.3field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

45 citing papers in PubMed, 73 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. The CLOCK-BMAL1 complex in circadian regulation: structure, mechanisms, and therapeutic targeting.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Review
  5. Review
  6. Review
  7. Review
  8. Targeting Cryptochromes in Chronic Diseases.Cell biology international · 2025
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. PERspectives on circadian cell biology.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  14. Review
  15. A structural decryption of cryptochromes.Frontiers in chemistry · 2024
    Review
  16. Mammalian circadian clock proteins form dynamic interacting microbodies distinct from phase separation.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  17. Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors at 7 institutions in 2 countries.

Jennifer L Fribourgh *Department of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, United States.
Ashutosh Srivastava *Institute of Transformative Bio-Molecules, Nagoya University, Nagoya, Japan.ORCID 0000-0001-9820-720X
Colby R Sandate *The Scripps Research Institute, La Jolla, United States.ORCID 0000-0002-8758-5931
Alicia K MichaelDepartment of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, United States.
Peter L HsuDepartment of Pharmacology, University of Washington, Seattle, United States.
Christin RakersGraduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan.ORCID 0000-0002-5668-6844
Leslee T NguyenDepartment of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, United States.
Megan R TorgrimsonDepartment of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, United States.
Gian Carlo G ParicoDepartment of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, United States.
Sarvind TripathiDepartment of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, United States.ORCID 0000-0002-6959-0577
Ning ZhengDepartment of Pharmacology, University of Washington, Seattle, United States.
Gabriel C LanderThe Scripps Research Institute, La Jolla, United States.ORCID 0000-0003-4921-1135
Tsuyoshi HirotaInstitute of Transformative Bio-Molecules, Nagoya University, Nagoya, Japan.ORCID 0000-0003-4876-3608
Florence TamaInstitute of Transformative Bio-Molecules, Nagoya University, Nagoya, Japan.
Carrie L PartchDepartment of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, United States.ORCID 0000-0002-4677-2861
University of California, Santa Cruz · USNagoya University · JPScripps Research Institute · USHoward Hughes Medical Institute · USKyoto University · JPRIKEN Center for Computational Science · JPUniversity of Washington · US

Funding

Exploring the structural basis for 24-hour timekeeping in mammalsR01GM107069 · NIGMS · UNIVERSITY OF CALIFORNIA SANTA CRUZ · PI PARTCH, CARRIE L · 2013 to 2020
$3.2M
Molecular basis of axonal transport described by high-resolution 3D imagingDP2EB020402 · NIBIB · SCRIPPS RESEARCH INSTITUTE, THE · PI LANDER, GABRIEL C · 2014 to 2014
$2.8M
Defining the molecular mechanisms underlying mitochondrial proteostasisR21AG061697 · NIA · SCRIPPS RESEARCH INSTITUTE, THE · PI LANDER, GABRIEL C · 2019 to 2020
$619k
COMPUTING AND DATA STORAGE CLUSTER FOR ELECTRON MICROSCOPYS10OD021634 · OD · SCRIPPS RESEARCH INSTITUTE, THE · PI LANDER, GABRIEL C · 2016 to 2016
$531k
Disruption of the circadian clock by a cancer/testis antigenF31CA189660 · NCI · UNIVERSITY OF CALIFORNIA SANTA CRUZ · PI MICHAEL, ALICIA · 2014 to 2016
$112k
Cancer Research Coordinating Committee CRN-15-380548NCI NIH HHS F31 CA189660NIA NIH HHS R21 AG061697NIBIB NIH HHS DP2 EB020402NIGMS NIH HHS R01 GM107069NIH HHS DP2 EB020402NIH HHS F31 CA189660NIH HHS R01 GM107069NIH HHS S10 OD021634Pew Charitable Trusts Pew ScholarUC Cancer Research Coordinating Committee CRN-15-380548
6 · The paper itself

Abstract

Mammalian circadian rhythms are generated by a transcription-based feedback loop in which CLOCK:BMAL1 drives transcription of its repressors (PER1/2, CRY1/2), which ultimately interact with CLOCK:BMAL1 to close the feedback loop with ~24 hr periodicity. Here we pinpoint a key difference between CRY1 and CRY2 that underlies their differential strengths as transcriptional repressors. Both cryptochromes bind the BMAL1 transactivation domain similarly to sequester it from coactivators and repress CLOCK:BMAL1 activity. However, we find that CRY1 is recruited with much higher affinity to the PAS domain core of CLOCK:BMAL1, allowing it to serve as a stronger repressor that lengthens circadian period. We discovered a dynamic serine-rich loop adjacent to the secondary pocket in the photolyase homology region (PHR) domain that regulates differential binding of cryptochromes to the PAS domain core of CLOCK:BMAL1. Notably, binding of the co-repressor PER2 remodels the serine loop of CRY2, making it more CRY1-like and enhancing its affinity for CLOCK:BMAL1.

Indexed as

Circadian RhythmAnimalsARNTL Transcription FactorsCLOCK ProteinsCryptochromesMiceProtein Structure, TertiarySerineARNTL Transcription FactorsBmal1 protein, mouseClock protein, mouseCLOCK ProteinsCry1 protein, mouseCry2 protein, mouseCryptochromesSerinebiochemistrychemical biologycircadian rhythmscryo-electron microscopymolecular dynamicsmousex-ray crystallography

Identifiers

PMID32101164
PMCPMC7064333
OpenAlexW3006680225

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.