Evidence map›Paper›PMID 28666995›Full record

ArticleThe EMBO journal2017

Structural basis of divergent cyclin-dependent kinase activation by Spy1/RINGO proteins.

Denise A McGrath, Bre-Anne Fifield, Aimee H Marceau, Sarvind Tripathi, Lisa A Porter, Seth M Rubin

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

27 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. Article
  3. A patent review of cyclin-dependent kinase 5 (CDK5) inhibitors (1999-2025).Frontiers in bioengineering and biotechnology · 2026
    Review
  4. Review
  5. Slower CDK4 and faster CDK2 activation in the cell cycle.Structure (London, England : 1993) · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Structural basis for CDK7 activation by MAT1 and Cyclin H.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  19. Review
  20. Review
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

6 authors at 2 institutions in 2 countries.

Denise A McGrathDepartment of Chemistry and Biochemistry, University of California, Santa Cruz, CA, USA.
Bre-Anne FifieldDepartment of Biological Sciences, University of Windsor, Windsor, ON, Canada.
Aimee H MarceauDepartment of Chemistry and Biochemistry, University of California, Santa Cruz, CA, USA.
Sarvind TripathiDepartment of Chemistry and Biochemistry, University of California, Santa Cruz, CA, USA.ORCID 0000-0002-6959-0577
Lisa A PorterDepartment of Biological Sciences, University of Windsor, Windsor, ON, Canada.
Seth M RubinDepartment of Chemistry and Biochemistry, University of California, Santa Cruz, CA, USA srubin@ucsc.edu.ORCID 0000-0002-1670-4147
University of California, Santa Cruz · USUniversity of Windsor · CA

Funding

Molecular Mechanisms Regulating the Retinoblastoma Protein FamilyR01CA132685 · NCI · UNIVERSITY OF CALIFORNIA SANTA CRUZ · PI RUBIN, SETH MICHAEL · 2008 to 2017
$3.0M
CIHRNCI NIH HHS R01 CA132685
6 · The paper itself

Abstract

Cyclin-dependent kinases (Cdks) are principal drivers of cell division and are an important therapeutic target to inhibit aberrant proliferation. Cdk enzymatic activity is tightly controlled through cyclin interactions, posttranslational modifications, and binding of inhibitors such as the p27 tumor suppressor protein. Spy1/RINGO (Spy1) proteins bind and activate Cdk but are resistant to canonical regulatory mechanisms that establish cell-cycle checkpoints. Cancer cells exploit Spy1 to stimulate proliferation through inappropriate activation of Cdks, yet the mechanism is unknown. We have determined crystal structures of the Cdk2-Spy1 and p27-Cdk2-Spy1 complexes that reveal how Spy1 activates Cdk. We find that Spy1 confers structural changes to Cdk2 that obviate the requirement of Cdk activation loop phosphorylation. Spy1 lacks the cyclin-binding site that mediates p27 and substrate affinity, explaining why Cdk-Spy1 is poorly inhibited by p27 and lacks specificity for substrates with cyclin-docking sites. We identify mutations in Spy1 that ablate its ability to activate Cdk2 and to proliferate cells. Our structural description of Spy1 provides important mechanistic insights that may be utilized for targeting upregulated Spy1 in cancer.

Indexed as

Gene Expression Regulation, EnzymologicCell Cycle ProteinsCyclin-Dependent Kinase 2DNA Mutational AnalysisPhosphorylationProliferating Cell Nuclear AntigenProtein BindingProtein Processing, Post-TranslationalCDK2 protein, humanCell Cycle ProteinsCyclin-Dependent Kinase 2p27 antigenProliferating Cell Nuclear AntigenSPDYA protein, humanCdkcell cyclekinase inhibitorsp27protein phosphorylation

Identifiers

PMID28666995
PMCPMC5706343
OpenAlexW2727140374

What OpenQuestion holds

Textmetadata
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.