Cited by 1,141Protein Degradation and InhibitorsUbiquitin and proteasome pathwaysMultiple Myeloma Research and Treatments

Structure of the DDB1–CRBN E3 ubiquitin ligase in complex with thalidomide

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Fischer, Eric S., Böhm, Kerstin, Lydeard, John R., Yang, Haidi, Stadler, Michael B., Cavadini, Simone, Nagel, Jane, Serluca, Fabrizio +13 more·2014·Nature

Abstract

In the 1950s, the drug thalidomide, administered as a sedative to pregnant women, led to the birth of thousands of children with multiple defects. Despite the teratogenicity of thalidomide and its derivatives lenalidomide and pomalidomide, these immunomodulatory drugs (IMiDs) recently emerged as effective treatments for multiple myeloma and 5q-deletion-associated dysplasia. IMiDs target the E3 ubiquitin ligase CUL4-RBX1-DDB1-CRBN (known as CRL4(CRBN)) and promote the ubiquitination of the IKAROS family transcription factors IKZF1 and IKZF3 by CRL4(CRBN). Here we present crystal structures of the DDB1-CRBN complex bound to thalidomide, lenalidomide and pomalidomide. The structure establishes that CRBN is a substrate receptor within CRL4(CRBN) and enantioselectively binds IMiDs. Using an unbiased screen, we identified the homeobox transcription factor MEIS2 as an endogenous substrate of CRL4(CRBN). Our studies suggest that IMiDs block endogenous substrates (MEIS2) from binding to CRL4(CRBN) while the ligase complex is recruiting IKZF1 or IKZF3 for degradation. This dual activity implies that small molecules can modulate an E3 ubiquitin ligase and thereby upregulate or downregulate the ubiquitination of proteins.

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Crossref · 10.1038/nature13527

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  • The tri-Trp pocket of CRBN shows 100% conservation in CRBN orthologs across animal and plant kingdoms.

    “These residues form a small hydrophobic pocket (tri-Trp pocket), which shows 100% conservation in CRBN orthologs across animal and plant kingdoms (Chamberlain et al., 2014; Fischer et al., 2014) (Figure S7A).”

    From Glutamine Triggers Acetylation-Dependent Degradation of Glutamine Synthetase via the Thalidomide Receptor Cereblon (2016) · cites this paper as Fischer et al., 2014

    The IMiD binding to CRBN section describes a hydrophobic pocket lined by three tryptophans and says its surface groove is highly conserved across CRBN orthologues. Extended Data Figure 1 lists animal orthologues for the conservation analysis, but the copy does not establish 100% conservation or extend that finding to plants. (LLM, conf=0.89)

    Experimental — accuracy not yet measured
  • Thalidomide analogs bind CRBN and change its substrate selectivity so that it recruits, ubiquitinates, and degrades proteins including IKZF1, IKZF3, CK1α, and GSPT1.

    “Thalidomide analogs bind Cereblon (CRBN), the substrate receptor of the CUL4-RBX1-DDB1-CRBN (CRL4CRBN) E3 ubiquitin ligase and alter its substrate selectivity to recruit, ubiquitinate and degrade seemingly unrelated proteins including Ikaros (IKZF1), Aiolos (IKZF3), Casein kinase 1 alpha (CK1α) and GSPT1 (2–7).”

    From Defining the human C2H2 zinc finger degrome targeted by thalidomide analogs through CRBN (2018) · cites this paper as [7]

    The sections on IMiD binding and CRBN ligase function describe thalidomide analogs binding CRBN and promoting the targeting of IKZF1 and IKZF3 for degradation, with thalidomide less effective than lenalidomide and pomalidomide. The paper also describes a change in substrate recruitment, but the passages do not support the claim that CK1α or GSPT1 is recruited, ubiquitinated, or degraded. No page numbers are available in our copy. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Thalidomide, lenalidomide, and pomalidomide cause ubiquitination and proteasomal degradation of IKZF1 and IKZF3 by bringing a C2H2 zinc finger domain to CRBN, the substrate receptor of CRL4CRBN.

    “The small molecules thalidomide, lenalidomide, and pomalidomide induce the ubiquitination and proteasomal degradation of the transcription factors Ikaros (IKZF1) and Aiolos (IKZF3) by recruiting a Cys2-His2 (C2H2) zinc finger domain to Cereblon (CRBN), the substrate receptor of the CRL4CRBN E3 ubiquitin ligase.”

    From Defining the human C2H2 zinc finger degrome targeted by thalidomide analogs through CRBN (2018) · cites this paper as [7]

    The 'CRBN functions as a DCAF' section identifies CRBN as a substrate receptor and reports IMiD-dependent degradation of IKZF1/3, noting that thalidomide is less efficient than lenalidomide and pomalidomide. The 'Thalidomide is an agonist and antagonist' section proposes recruitment of Ikaros to IMiD-bound CRBN but says the detailed binding mode remains to be established. Our copy does not identify a C2H2 zinc finger domain as the recruited portion, so that specific mechanism is unsupported. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Earlier work implicated the second C2H2 zinc finger domain in IKZF1 and IKZF3, and ZF4 of ZFP91, as drug-inducible degrons.

    “Previous work has implicated the second C2H2 ZF domain in IKZF1 and IKZF3 (5, 7), and ZF4 of ZFP91 as the drug-inducible degrons (5, 7, 16).”

    From Defining the human C2H2 zinc finger degrome targeted by thalidomide analogs through CRBN (2018) · cites this paper as [7]

    The “CRBN functions as a DCAF for the CRL4CRBN ligase” section (page unavailable) reports drug-induced degradation of IKZF1 and IKZF3. It does not identify their second C2H2 zinc finger as a degron, and the searched passages do not address ZFP91 or its ZF4 domain. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • CRL4CRBN has a ubiquitination radius of approximately 100 Å.

    “Given the CRL4CRBN protein architecture and its ~100 Å ubiquitination radius (6, 7, 22)”

    From Defining the human C2H2 zinc finger degrome targeted by thalidomide analogs through CRBN (2018) · cites this paper as [7]

    In “CRBN functions as a DCAF for the CRL4CRBN ligase” (page unavailable), the paper describes a ubiquitination zone created by rotation of the ligase arm. It gives the zone’s dimensions as up to 340 × 110 × 30 Å, not a ubiquitination radius of approximately 100 Å. (LLM, conf=0.85)

    Experimental — accuracy not yet measured

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Research works printed but not linked: 1

  1. [39]Li T Robert EI van Breugel PC Strubin M Zheng N A promiscuous alpha-helical motif anchors viral hijackers and substrate receptors to the CUL4-DDB1 ubiquitin ligase machinery Nat Struct Mol Biol 2010 17 105 111 19966799 PMC2823288

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Authors
Fischer, E. S., Böhm, K., Lydeard, J. R., Yang, H., Stadler, M. B., Cavadini, S., Nagel, J., Serluca, F., Acker, V., Lingaraju, G. M., Tichkule, R. B., Schebesta, M., Forrester, W. C., Schirle, M., Hassiepen, U., Ottl, J., Hild, M., Beckwith, R. E. J., Harper, J. W., Jenkins, J. L., & Thomä, N. H.
Affiliations
  • University of Basel (CH)
  • Harvard University (US)
  • Novartis (Switzerland) (CH)
Corresponding author
Thomä, Nicolas H.
Venue
Nature
Published
2014-07-16
Volume
512
Issue
7512
Pages
49-53
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2161413435
Cited by
1,141
References
44
Citations by year
2026: 130 · 2025: 159 · 2024: 130 · 2023: 103 · 2022: 119 · 2021: 98 · 2020: 109 · 2019: 76 · 2018: 63 · 2017: 52 · 2016: 54 · 2015: 35 · 2014: 12
FWCI
21.03
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DORA PSI (Paul Scherrer Institute) (submittedVersion)
Funders
National Institute on Aging (AG011085, R01AG011085)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Degradation and Inhibitors
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Health Sciences › Medicine › Hematology › Multiple Myeloma Research and Treatments
Keywords
thalidomide, lenalidomide, pomalidomide, immunomodulators, E3 ubiquitin ligase, enantioselective binding, MEIS2, IKZF1, IKZF3, multiple myeloma
MeSH terms
Lenalidomide, DNA-Binding Proteins, Humans, Models, Molecular, Peptide Hydrolases, Protein Binding, Structure-Activity Relationship, Substrate Specificity, Thalidomide, Transcription Factors, Crystallography, X-Ray, Homeodomain Proteins, Ubiquitin-Protein Ligases, Multiprotein Complexes, Adaptor Proteins, Signal Transducing

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