Evidence map›Paper›PMID 26507530›Full record

ArticleScientific reports2015

Discovery of Small Molecules that Inhibit the Disordered Protein, p27(Kip1).

Luigi I Iconaru, David Ban, Kavitha Bharatham, Arvind Ramanathan, Weixing Zhang, Anang A Shelat, Jian Zuo, Richard W Kriwacki

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 6% 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

56 citing papers in PubMed, 1 synthesis or guideline pooled it, 97 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Ensemble Docking for Intrinsically Disordered Proteins.Journal of chemical information and modeling · 2025
    Article
  8. Article
  9. Ensemble docking for intrinsically disordered proteins.bioRxiv : the preprint server for biology · 2025
    Article
  10. Article
  11. HES1 is required for mouse fetal hematopoiesis.Stem cell research & therapy · 2024
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
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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

8 authors at 4 institutions in 1 country.

Luigi I IconaruDepartment of Structural Biology, Memphis, TN 38105.
David BanDepartment of Structural Biology, Memphis, TN 38105.
Kavitha BharathamDepartment of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN 38105.
Arvind RamanathanComputational Science and Engineering Division, Health Data Sciences Institute, Oak Ridge National Laboratory, Oak Ridge, TN 37830.
Weixing ZhangDepartment of Structural Biology, Memphis, TN 38105.
Anang A ShelatDepartment of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN 38105.
Jian ZuoDepartment of Developmental Neurobiology, Memphis, TN 38105.
Richard W KriwackiDepartment of Structural Biology, Memphis, TN 38105.
University of Memphis · USSt. Jude Children's Research Hospital · USOak Ridge National Laboratory · USUniversity of Tennessee Health Science Center · US

Funding

Viral Vector Technology (VVTSR)P30CA021765 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI Heather M Brandt · 1985 to 2026
$166.9M
GENETIC ANALYSIS OF MAMMALIAN HEARING SENSITIVITYR01DC006471 · NIDCD · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI ZUO, JIAN · 2004 to 2013
$3.5M
Structural Determinants in Cell Growth Control by p21 and p27R01CA082491 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI KRIWACKI, RICHARD W · 2001 to 2011
$2.7M
Understanding the Structural Mechanism of Puma-induced ApoptosisR01GM083159 · NIGMS · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI KRIWACKI, RICHARD W · 2009 to 2012
$1.3M
Drug discovery for hair cell regeneration in adult mammalian cochleaeR21DC013879 · NIDCD · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI ZUO, JIAN · 2014 to 2015
$479k
Inhibition of Oncogenic MdmX by Targeting its MotionF32GM113290 · NIGMS · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI BAN, DAVID L. · 2015 to 2015
$47k
NCI NIH HHS P30 CA021765NCI NIH HHS P30CA21765NCI NIH HHS R01 CA082491NCI NIH HHS R01CA082491NIDCD NIH HHS 1R21DC013879-01NIDCD NIH HHS 2R01DC006471NIDCD NIH HHS R01 DC006471NIDCD NIH HHS R21 DC013879NIGMS NIH HHS 1R01GM083159NIGMS NIH HHS F32 GM113290NIGMS NIH HHS R01 GM083159
6 · The paper itself

Abstract

Disordered proteins are highly prevalent in biological systems, they control myriad signaling and regulatory processes, and their levels and/or cellular localization are often altered in human disease. In contrast to folded proteins, disordered proteins, due to conformational heterogeneity and dynamics, are not considered viable drug targets. We challenged this paradigm by identifying through NMR-based screening small molecules that bound specifically, albeit weakly, to the disordered cell cycle regulator, p27(Kip1) (p27). Two groups of molecules bound to sites created by transient clusters of aromatic residues within p27. Conserved chemical features within these two groups of small molecules exhibited complementarity to their binding sites within p27, establishing structure-activity relationships for small molecule:disordered protein interactions. Finally, one compound counteracted the Cdk2/cyclin A inhibitory function of p27 in vitro, providing proof-of-principle that small molecules can inhibit the function of a disordered protein (p27) through sequestration in a conformation incapable of folding and binding to a natural regulatory target (Cdk2/cyclin A).

Indexed as

Cyclin-Dependent Kinase 2Cyclin-Dependent Kinase Inhibitor p27CyclinsHumansProtein BindingProtein Interaction MapsSmall Molecule LibrariesStructure-Activity RelationshipCDK2 protein, humanCyclin-Dependent Kinase 2Cyclin-Dependent Kinase Inhibitor p27CyclinsSmall Molecule Libraries

Identifiers

PMID26507530
PMCPMC4623604
OpenAlexW1935389499

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.