Evidence map›Paper›PMID 22634283›Full record

ArticleJournal of molecular biology2012

Biophysical basis of the binding of WWOX tumor suppressor to WBP1 and WBP2 adaptors.

Caleb B McDonald, Laura Buffa, Tomer Bar-Mag, Zaidoun Salah, Vikas Bhat, David C Mikles, Brian J Deegan, Kenneth L Seldeen, Arun Malhotra, Marius Sudol and 3 more

Open access · greenAbstract read
In one paragraph

Article in Journal of molecular biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing 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

31 citing papers in PubMed, 38 citations in OpenAlex.

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  14. Frontiers in oncology · 2018
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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

13 authors at 4 institutions in 2 countries.

Caleb B McDonaldDepartment of Biochemistry and Molecular Biology, Leonard Miller School of Medicine, University of Miami, Miami, FL 33136, USA.
Laura Buffa
Tomer Bar-Mag
Zaidoun Salah
Vikas Bhat
David C Mikles
Brian J Deegan
Kenneth L Seldeen
Arun Malhotra
Marius Sudol
Rami I Aqeilan
Zafar Nawaz
Amjad Farooq
University of Miami · USSylvester Comprehensive Cancer Center · USHebrew University of Jerusalem · ILGeisinger Medical Center · US

Funding

Structural and Functional Studies of the Novel DBD Domain of MKP5R01GM083897 · NIGMS · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI FAROOQ, AMJAD · 2008 to 2012
$1.6M
Roles of Novel Protein Complexes in Estrogen and Progesterone Receptor SignalingR01DK079217 · NIDDK · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI NAWAZ, ZAFAR · 2009 to 2012
$1.5M
Training in Translational Breast Cancer ResearchT32CA119929 · NCI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI SLINGERLAND, JOYCE MARIE · 2007 to 2011
$1.4M
NCI NIH HHS T32 CA119929NCI NIH HHS T32-CA119929NIDDK NIH HHS R01 DK079217NIDDK NIH HHS R01-DK079217NIGMS NIH HHS R01 GM083897NIGMS NIH HHS R01-GM083897
6 · The paper itself

Abstract

The WW-containing oxidoreductase (WWOX) tumor suppressor participates in a diverse array of cellular activities by virtue of its ability to recognize WW-binding protein 1 (WBP1) and WW-binding protein 2 (WBP2) signaling adaptors among a wide variety of other ligands. Herein, using a multitude of biophysical techniques, we provide evidence that while the WW1 domain of WWOX binds to PPXY motifs within WBP1 and WBP2 in a physiologically relevant manner, the WW2 domain exhibits no affinity toward any of these PPXY motifs. Importantly, our data suggest that while R25/W44 residues located within the binding pocket of a triple-stranded β-fold of WW1 domain are critical for the recognition of PPXY ligands, they are replaced by the chemically distinct E66/Y85 duo at structurally equivalent positions within the WW2 domain, thereby accounting for its failure to bind PPXY ligands. Predictably, not only does the introduction of E66R/Y85W double substitution within the WW2 domain result in gain of function but the resulting engineered domain, hereinafter referred to as WW2_RW, also appears to be a much stronger binding partner of WBP1 and WBP2 than the wild-type WW1 domain. We also show that while the WW1 domain is structurally disordered and folds upon ligand binding, the WW2 domain not only adopts a fully structured conformation but also aids stabilization and ligand binding to WW1 domain. This salient observation implies that the WW2 domain likely serves as a chaperone to augment the physiological function of WW1 domain within WWOX. Collectively, our study lays the groundwork for understanding the molecular basis of a key protein-protein interaction pertinent to human health and disease.

Indexed as

Adaptor Proteins, Signal TransducingAmino Acid MotifsAmino Acid SequenceBinding SitesBiophysicsHumansLigandsMolecular Sequence DataOxidoreductasesProtein FoldingProtein Structure, TertiaryTransfectionTumor Suppressor ProteinsWW Domain-Containing OxidoreductaseAdaptor Proteins, Signal TransducingLigandsOxidoreductasesTumor Suppressor ProteinsWW Domain-Containing OxidoreductaseWWOX protein, human

Identifiers

PMID22634283
PMCPMC3412936
OpenAlexW2132646376

What OpenQuestion holds

Textmetadata
LicenceTDM
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.