Evidence map›Paper›PMID 32315618›Full record

ArticleCell2020

Selective PP2A Enhancement through Biased Heterotrimer Stabilization.

Daniel Leonard, Wei Huang, Sudeh Izadmehr, Caitlin M O'Connor, Danica D Wiredja, Zhizhi Wang, Nilesh Zaware, Yinghua Chen, Daniela M Schlatzer, Janna Kiselar and 9 more

Open access · bronzeAbstract read
In one paragraph

Article in Cell, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers.

0numbers the graph read from it
0cells of the map it votes in
105citing papers in PubMed
8.7field-weighted citation impact, top 1% 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

105 citing papers in PubMed, 177 citations in OpenAlex.

  1. Phosphoproteomic dysregulation promotes tumor proliferation in Cushing's disease.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Review
  3. Targeting CDKs in the RNAPII transcription cycle.Nature reviews. Drug discovery · 2026
    Review
  4. Article
  5. Article
  6. Article
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  10. Switching of the c-Myc protein degradation pathway depending on the PP2A-B55α complex levels.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Targeting PP2A in cancer: an underrated option.Journal of experimental & clinical cancer research : CR · 2025
    Review
  18. Article
  19. Article
  20. Article

45 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

19 authors at 8 institutions in 2 countries.

Daniel LeonardDepartment of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA; Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA.
Wei HuangDepartment of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA.
Sudeh IzadmehrDivision of Hematology and Medical Oncology, Department of Medicine, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
Caitlin M O'ConnorDivision of Genetic Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48105, USA; Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA.
Danica D WiredjaDepartment of Nutrition, Center for Proteomics and Bioinformatics, Case Western Reserve University, Cleveland, OH 44106, USA.
Zhizhi WangDepartment of Biological Structure, University of Washington, Seattle, WA 98195, USA.
Nilesh ZawareDepartment of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
Yinghua ChenPEPCC Facility, Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA.
Daniela M SchlatzerDepartment of Nutrition, Center for Proteomics and Bioinformatics, Case Western Reserve University, Cleveland, OH 44106, USA.
Janna KiselarDepartment of Nutrition, Center for Proteomics and Bioinformatics, Case Western Reserve University, Cleveland, OH 44106, USA.
Nikhil VasireddiDepartment of Biology, Case Western Reserve University, Cleveland, OH 44106, USA.
Stefan SchüchnerCenter for Medical Biochemistry, Max Perutz Labs, Medical University of Vienna, Dr. Bohr-Gasse 9/2, Vienna 1030, Austria.
Abbey L PerlDepartment of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA.
Matthew D GalskyDivision of Hematology and Medical Oncology, Department of Medicine, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
Wenqing XuDepartment of Biological Structure, University of Washington, Seattle, WA 98195, USA.
David L BrautiganDepartment of Microbiology, Immunology, and Cancer Biology, Center for Cell Signaling, University of Virginia, Charlottesville, VA 22903, USA.
Egon OgrisCenter for Medical Biochemistry, Max Perutz Labs, Medical University of Vienna, Dr. Bohr-Gasse 9/2, Vienna 1030, Austria.
Derek J TaylorDepartment of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA; Department of Biochemistry, Case Western Reserve University, Cleveland, OH 44106, USA. Electronic address: derek.taylor@case.edu.
Goutham NarlaDivision of Genetic Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48105, USA; Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA. Electronic address: gnarla@med.umich.edu.
Case Western Reserve University · USIcahn School of Medicine at Mount Sinai · USUniversity School · USMax Perutz Labs · ATUniversity of Michigan · USUniversity of Washington · USCleveland Clinic Lerner College of Medicine · USUniversity of Virginia · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007250 · NIGMS · CASE WESTERN RESERVE UNIVERSITY · PI HUANG, ALEX YEE-CHEN · 1985 to 2023
$33.4M
Midwest Consortium for High Resolution Cryoelectron MicroscopyU24GM116789 · NIGMS · PURDUE UNIVERSITY · PI BULLITT, ESTHER, DAI, WEI · 2017 to 2021
$3.5M
Structural and molecular determinants of protein phosphatase 2A in Alzheimer's DiseaseR01CA240993 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI NARLA, GOUTHAM, TAYLOR, DEREK JAMES · 2019 to 2023
$3.4M
West/Midwest Consortium for High-Resolution Cryo Electron MicroscopyU24GM116792 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI AGBANDJE-MCKENNA, MAVIS, DOKLAND, TERJE · 2016 to 2020
$3.0M
NRSA Training CoreTL1TR002549 · NCATS · CASE WESTERN RESERVE UNIVERSITY · PI HARDING, CLIFFORD V · 2018 to 2022
$2.9M
UVA molecular electron microscopy core for the Mid-Atlantic regionU24GM116790 · NIGMS · UNIVERSITY OF VIRGINIA · PI GALKIN, VITOLD, SAMSO, MONTSERRAT · 2017 to 2021
$2.9M
Small Molecule Activators of PP2A (SMAPs) for Prostate Cancer TherapyR01CA181654 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI NARLA, GOUTHAM · 2015 to 2019
$1.9M
Molecular interactions and regulatory events of telomere proteinsR01GM133841 · NIGMS · CASE WESTERN RESERVE UNIVERSITY · PI TAYLOR, DEREK JAMES · 2019 to 2022
$1.7M
Overcoming resistance to first generation small molecule activators of PP2A.F30CA224977 · NCI · CASE WESTERN RESERVE UNIVERSITY · PI LEONARD, DANIEL JOHN · 2018 to 2021
$186k
NCATS NIH HHS TL1 TR002549NCI NIH HHS F30 CA224977NCI NIH HHS HHSN261200800001ENCI NIH HHS R01 CA181654NCI NIH HHS R01 CA240993NIGMS NIH HHS R01 GM133841NIGMS NIH HHS T32 GM007250NIGMS NIH HHS U24 GM116789NIGMS NIH HHS U24 GM116790NIGMS NIH HHS U24 GM116792
6 · The paper itself

Abstract

Impairment of protein phosphatases, including the family of serine/threonine phosphatases designated PP2A, is essential for the pathogenesis of many diseases, including cancer. The ability of PP2A to dephosphorylate hundreds of proteins is regulated by over 40 specificity-determining regulatory "B" subunits that compete for assembly and activation of heterogeneous PP2A heterotrimers. Here, we reveal how a small molecule, DT-061, specifically stabilizes the B56α-PP2A holoenzyme in a fully assembled, active state to dephosphorylate selective substrates, such as its well-known oncogenic target, c-Myc. Our 3.6 Å structure identifies molecular interactions between DT-061 and all three PP2A subunits that prevent dissociation of the active enzyme and highlight inherent mechanisms of PP2A complex assembly. Thus, our findings provide fundamental insights into PP2A complex assembly and regulation, identify a unique interfacial stabilizing mode of action for therapeutic targeting, and aid in the development of phosphatase-based therapeutics tailored against disease specific phospho-protein targets.

Indexed as

Amino Acid SequenceAnimalsCell Line, TumorEnzyme ActivatorsHEK293 CellsHeterograftsHumansMaleMiceMice, NudeModels, MolecularMultiprotein ComplexesProtein Phosphatase 2Protein SubunitsEnzyme ActivatorsMultiprotein ComplexesPPP2R5A protein, humanProtein Phosphatase 2Protein SubunitsB56αcancerc-Myccryo-EMphosphatasePP2Asmall moleculeSMAP

Identifiers

PMID32315618
PMCPMC7243596
OpenAlexW3016570710

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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.