Evidence map›Paper›PMID 25767204›Full record

ArticleMolecular biology and evolution2015

Quantitative Description of a Protein Fitness Landscape Based on Molecular Features.

María-Rocío Meini, Pablo E Tomatis, Daniel M Weinreich, Alejandro J Vila

Open access · bronzeAbstract read
In one paragraph

Article in Molecular biology and evolution, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
6.4field-weighted citation impact, top 3% 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

42 citing papers in PubMed, 71 citations in OpenAlex.

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  15. Experimental andACS infectious diseases · 2022
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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

4 authors at 3 institutions in 2 countries.

María-Rocío MeiniLaboratory of Metalloproteins, Instituto de Biología Molecular y Celular de Rosario (IBR, CONICET-UNR) and Área Biofísica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina.
Pablo E TomatisLaboratory of Metalloproteins, Instituto de Biología Molecular y Celular de Rosario (IBR, CONICET-UNR) and Área Biofísica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina.
Daniel M WeinreichDepartment of Ecology and Evolutionary Biology, and Center for Computational Molecular Biology, Brown University.
Alejandro J VilaLaboratory of Metalloproteins, Instituto de Biología Molecular y Celular de Rosario (IBR, CONICET-UNR) and Área Biofísica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina vila@ibr-conicet.gov.ar.
Brown University · USInstituto de Biología Molecular y Celular de Rosario · ARNational University of Rosario · AR

Funding

A Mechanism-Based Approach to Metallo-beta-Lactamase InhibitionR01AI100560 · NIAID · CASE WESTERN RESERVE UNIVERSITY · PI BONOMO, ROBERT A., SPENCER, JAMES · 2012 to 2022
$4.4M
Developing and Testing a Novel Geometric Model of Protein AdaptationR01GM095728 · NIGMS · BROWN UNIVERSITY · PI WEINREICH, DANIEL MICHAEL · 2011 to 2015
$1.4M
NIAID NIH HHS R01 AI100560NIGMS NIH HHS R01 GM095728
6 · The paper itself

Abstract

Understanding the driving forces behind protein evolution requires the ability to correlate the molecular impact of mutations with organismal fitness. To address this issue, we employ here metallo-β-lactamases as a model system, which are Zn(II) dependent enzymes that mediate antibiotic resistance. We present a study of all the possible evolutionary pathways leading to a metallo-β-lactamase variant optimized by directed evolution. By studying the activity, stability and Zn(II) binding capabilities of all mutants in the preferred evolutionary pathways, we show that this local fitness landscape is strongly conditioned by epistatic interactions arising from the pleiotropic effect of mutations in the different molecular features of the enzyme. Activity and stability assays in purified enzymes do not provide explanatory power. Instead, measurement of these molecular features in an environment resembling the native one provides an accurate description of the observed antibiotic resistance profile. We report that optimization of Zn(II) binding abilities of metallo-β-lactamases during evolution is more critical than stabilization of the protein to enhance fitness. A global analysis of these parameters allows us to connect genotype with fitness based on quantitative biochemical and biophysical parameters.

Indexed as

Evolution, MolecularAdaptation, Physiologicalbeta-LactamasesBiocatalysisCephalexinEnzyme StabilityEpistasis, GeneticEscherichia coliKineticsMicrobial Sensitivity TestsMutationPeriplasmTemperatureZincbeta-LactamasesCephalexinZincantibiotic resistanceepistasismetallo-ß-lactamaseprotein evolution

Identifiers

PMID25767204
PMCPMC4476158
OpenAlexW2040374422

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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.