Evidence map›Paper›PMID 21653701›Full record

ArticleThe Journal of biological chemistry2011

Sequence-specific long range networks in PSD-95/discs large/ZO-1 (PDZ) domains tune their binding selectivity.

Stefano Gianni, S Raza Haq, Linda C Montemiglio, Maike C Jürgens, Åke Engström, Celestine N Chi, Maurizio Brunori, Per Jemth

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing 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

44 citing papers in PubMed.

  1. Article
  2. Evolution of the Tri-PDZ Domain in PSD95 (DLG-4 Gene).Molecular biology and evolution · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. An intramolecular energetic network regulates ligand recognition in a SH2 domain.Protein science : a publication of the Protein Society · 2023
    Article
  7. Article
  8. Article
  9. Article
  10. Allosterism in the PDZ Family.International journal of molecular sciences · 2022
    Review
  11. Article
  12. Article
  13. Double Mutant Cycles as a Tool to Address Folding, Binding, and Allostery.International journal of molecular sciences · 2021
    Review
  14. Article
  15. Article
  16. Article
  17. Supertertiary protein structure affects an allosteric network.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  18. Review
  19. Article
  20. 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

8 authors.

Stefano GianniIstituto Pasteur-Fondazione Cenci Bolognetti, Dipartimento di Scienze Biochimiche A. Rossi Fanelli, Sapienza Università di Roma, Piazzale A. Moro 5, 00185 Rome, Italy.
S Raza Haq
Linda C Montemiglio
Maike C Jürgens
Åke Engström
Celestine N Chi
Maurizio Brunori
Per Jemth

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Protein-protein interactions mediated by modular protein domains are critical for cell scaffolding, differentiation, signaling, and ultimately, evolution. Given the vast number of ligands competing for binding to a limited number of domain families, it is often puzzling how specificity can be achieved. Selectivity may be modulated by intradomain allostery, whereby a remote residue is energetically connected to the functional binding site via side chain or backbone interactions. Whereas several energetic pathways, which could mediate intradomain allostery, have been predicted in modular protein domains, there is a paucity of experimental data to validate their existence and roles. Here, we have identified such functional energetic networks in one of the most common protein-protein interaction modules, the PDZ domain. We used double mutant cycles involving site-directed mutagenesis of both the PDZ domain and the peptide ligand, in conjunction with kinetics to capture the fine energetic details of the networks involved in peptide recognition. We performed the analysis on two homologous PDZ-ligand complexes and found that the energetically coupled residues differ for these two complexes. This result demonstrates that amino acid sequence rather than topology dictates the allosteric pathways. Furthermore, our data support a mechanism whereby the whole domain and not only the binding pocket is optimized for a specific ligand. Such cross-talk between binding sites and remote residues may be used to fine tune target selectivity.

Indexed as

Intracellular Signaling Peptides and ProteinsKineticsMembrane ProteinsModels, MolecularMutagenesis, Site-DirectedProtein BindingThermodynamicsIntracellular Signaling Peptides and ProteinsMembrane Proteins

Identifiers

PMID21653701
PMCPMC3149310

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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.