Evidence map›Paper›PMID 38320555›Full record

ArticleCell chemical biology2024

The cyclimids: Degron-inspired cereblon binders for targeted protein degradation.

Saki Ichikawa, N Connor Payne, Wenqing Xu, Chia-Fu Chang, Nandini Vallavoju, Spencer Frome, Hope A Flaxman, Ralph Mazitschek, Christina M Woo

Abstract read
In one paragraph

Article in Cell chemical biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–field-weighted citation impact
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

23 citing papers in PubMed.

  1. Evolving CRBN ligands enhance the drug-like properties of protein degraders.Journal of enzyme inhibition and medicinal chemistry · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Chemical and Enzymatic Approaches to C-Terminal Cyclic Imide Formation.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
  13. Article
  14. Review
  15. Article
  16. Design and Application of Cereblon-Recruiting Prodegraders.Journal of the American Chemical Society · 2025
    Article
  17. Article
  18. A Kinetic Scout Approach Accelerates Targeted Protein Degrader Development.Angewandte Chemie (International ed. in English) · 2025
    Article
  19. Article
  20. Genesis and regulation of C-terminal cyclic imides from protein damage.Proceedings of the National Academy of Sciences of the United States of America · 2025
    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

9 authors.

Saki IchikawaDepartment of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA.
N Connor PayneDepartment of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA; Center for Systems Biology, Massachusetts General Hospital, Boston, MA 02114, USA.
Wenqing XuDepartment of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA.
Chia-Fu ChangDepartment of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA.
Nandini VallavojuDepartment of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA.
Spencer FromeDepartment of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA.
Hope A FlaxmanDepartment of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA.
Ralph MazitschekCenter for Systems Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA. Electronic address: ralph@broadinstitute.org.
Christina M WooDepartment of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA. Electronic address: cwoo@chemistry.harvard.edu.

Funding

Uncovering the substrate recognition mechanisms of the E3 ligase adaptor cereblonR01GM141406 · NIGMS · HARVARD UNIVERSITY · PI WOO, CHRISTINA · 2022 to 2025
$1.3M
NIGMS NIH HHS R01 GM141406
6 · The paper itself

Abstract

Cereblon (CRBN) is an E3 ligase substrate adapter widely exploited for targeted protein degradation (TPD) strategies. However, achieving efficient and selective target degradation is a preeminent challenge with ligands that engage CRBN. Here, we report that the cyclimids, ligands derived from the C-terminal cyclic imide degrons of CRBN, exhibit distinct modes of interaction with CRBN and offer a facile approach for developing potent and selective bifunctional degraders. Quantitative TR-FRET-based characterization of 60 cyclimid degraders in binary and ternary complexes across different substrates revealed that ternary complex binding affinities correlated strongly with cellular degradation efficiency. Our studies establish the unique properties of the cyclimids as versatile warheads in TPD and a systematic biochemical approach for quantifying ternary complex formation to predict their cellular degradation activity, which together will accelerate the development of ligands that engage CRBN.

Indexed as

Adaptor Proteins, Signal TransducingProteolysisUbiquitin-Protein LigasesHEK293 CellsHumansLigandsMolecular StructureAdaptor Proteins, Signal TransducingCRBN protein, humanLigandsUbiquitin-Protein LigasescereblonCoraFluorcyclimidsdegraderE3 ligasePROTACtargeted protein degradation assayternary complexTR-FRET

Identifiers

PMID38320555
PMCPMC12136240

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Registered trials

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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.