Evidence map›Paper›PMID 32758421›Full record

ArticleBiophysical journal2020

Conformational Stability and Dynamics in Crystals Recapitulate Protein Behavior in Solution.

Benedetta Maria Sala, Tanguy Le Marchand, Guido Pintacuda, Carlo Camilloni, Antonino Natalello, Stefano Ricagno

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.3field-weighted citation impact, top 43% 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

4 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. Article
  3. Chemical reviews · 2022
    Review
  4. Predicting stable binding modes from simulated dimers of the D76N mutant ofComputational and structural biotechnology journal · 2021
    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

6 authors at 3 institutions in 2 countries.

Benedetta Maria SalaDipartimento di Bioscienze, Università degli Studi di Milano, Milano, Italy.
Tanguy Le MarchandCentre de Résonance Magnétique Nucléaire à Très Hauts Champs (FRE 2034 CNRS, UCBL, ENS Lyon), Université de Lyon, Villeurbanne, France.
Guido PintacudaCentre de Résonance Magnétique Nucléaire à Très Hauts Champs (FRE 2034 CNRS, UCBL, ENS Lyon), Université de Lyon, Villeurbanne, France.
Carlo CamilloniDipartimento di Bioscienze, Università degli Studi di Milano, Milano, Italy. Electronic address: carlo.camilloni@unimi.it.
Antonino NatalelloDepartment of Biotechnology and Biosciences, University of Milano-Bicocca, Milano, Italy. Electronic address: antonino.natalello@unimib.it.
Stefano RicagnoDipartimento di Bioscienze, Università degli Studi di Milano, Milano, Italy. Electronic address: stefano.ricagno@unimi.it.
University of Milan · ITCentre de RMN à Très Hauts Champs de Lyon · FRUniversity of Milano-Bicocca · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A growing body of evidences has established that in many cases proteins may preserve most of their function and flexibility in a crystalline environment, and several techniques are today capable to characterize molecular properties of proteins in tightly packed lattices. Intriguingly, in the case of amyloidogenic precursors, the presence of transiently populated states (hidden to conventional crystallographic studies) can be correlated to the pathological fate of the native fold; the low fold stability of the native state is a hallmark of aggregation propensity. It remains unclear, however, to which extent biophysical properties of proteins such as the presence of transient conformations or protein stability characterized in crystallo reflect the protein behavior that is more commonly studied in solution. Here, we address this question by investigating some biophysical properties of a prototypical amyloidogenic system, β2-microglobulin in solution and in microcrystalline state. By combining NMR chemical shifts with molecular dynamics simulations, we confirmed that conformational dynamics of β2-microglobulin native state in the crystal lattice is in keeping with what observed in solution. A comparative study of protein stability in solution and in crystallo is then carried out, monitoring the change in protein secondary structure at increasing temperature by Fourier transform infrared spectroscopy. The increased structural order of the crystalline state contributes to provide better resolved spectral components compared to those collected in solution and crucially, the crystalline samples display thermal stabilities in good agreement with the trend observed in solution. Overall, this work shows that protein stability and occurrence of pathological hidden states in crystals parallel their solution counterpart, confirming the interest of crystals as a platform for the biophysical characterization of processes such as unfolding and aggregation.

Indexed as

beta 2-MicroglobulinMolecular Dynamics SimulationMagnetic Resonance SpectroscopyProtein ConformationProtein StabilityProtein Structure, Secondarybeta 2-Microglobulin

Identifiers

PMID32758421
PMCPMC7474178
OpenAlexW3045221776

What OpenQuestion holds

Textmetadata
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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 OpenQuestion graph.