Evidence map›Paper›PMID 32497065›Full record

ArticlePLoS computational biology2020

Discriminating between negative cooperativity and ligand binding to independent sites using pre-equilibrium properties of binding curves.

Federico Sevlever, Juan Pablo Di Bella, Alejandra C Ventura

Abstract read
In one paragraph

Article in PLoS computational biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Molecular Tweezers Block the Functional Pore of a Protein Machine.Journal of the American Chemical Society · 2025
    Article
  2. Quantification and potential functional relevance of binding cooperativity of adjacent transcription factors on DNA.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
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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

3 authors.

Federico SevleverDepartment of Physiology, Molecular and Cellular Biology, University of Buenos Aires, Buenos Aires, Argentina.ORCID 0000-0001-6749-4162
Juan Pablo Di BellaDepartment of Physiology, Molecular and Cellular Biology, University of Buenos Aires, Buenos Aires, Argentina.
Alejandra C VenturaDepartment of Physiology, Molecular and Cellular Biology, University of Buenos Aires, Buenos Aires, Argentina.ORCID 0000-0002-5275-3827

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Negative cooperativity is a phenomenon in which the binding of a first ligand or substrate molecule decreases the rate of subsequent binding. This definition is not exclusive to ligand-receptor binding, it holds whenever two or more molecules undergo two successive binding events. Negative cooperativity turns the binding curve more graded and cannot be distinguished from two independent and different binding events based on equilibrium measurements only. The need of kinetic data for this purpose was already reported. Here, we study the binding response as a function of the amount of ligand, at different times, from very early times since ligand is added and until equilibrium is reached. Over those binding curves measured at different times, we compute the dynamic range: the fold change required in input to elicit a change from 10 to 90% of maximum output, finding that it evolves in time differently and controlled by different parameters in the two situations that are identical in equilibrium. Deciphering which is the microscopic model that leads to a given binding curve adds understanding on the molecular mechanisms at play, and thus, is a valuable tool. The methods developed in this article were tested both with simulated and experimental data, showing to be robust to noise and experimental constraints.

Indexed as

AlgorithmsBinding SitesKineticsLigandsProtein BindingProteinsLigandsProteins

Identifiers

PMID32497065
PMCPMC7297384

What Socratic holds

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LicenceCC BY
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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 Socratic graph.