Evidence map›Paper›PMID 36329138›Full record

ArticleCommunications biology2022

SARS-CoV-2 spike opening dynamics and energetics reveal the individual roles of glycans and their collective impact.

Yui Tik Pang, Atanu Acharya, Diane L Lynch, Anna Pavlova, James C Gumbart

Open access · goldAbstract read
In one paragraph

Article in Communications biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
6.8field-weighted citation impact, top 2% 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

37 citing papers in PubMed, 71 citations in OpenAlex.

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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

5 authors at 1 institution in 1 country.

Yui Tik Pang *School of Physics, Georgia Institute of Technology, Atlanta, GA, 30332, USA.ORCID 0000-0003-4843-4468
Atanu Acharya *School of Physics, Georgia Institute of Technology, Atlanta, GA, 30332, USA.ORCID 0000-0002-6960-7789
Diane L LynchSchool of Physics, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
Anna PavlovaSchool of Physics, Georgia Institute of Technology, Atlanta, GA, 30332, USA.ORCID 0000-0002-6527-944X
James C GumbartSchool of Physics, Georgia Institute of Technology, Atlanta, GA, 30332, USA. gumbart@physics.gatech.edu.ORCID 0000-0002-1510-7842
Georgia Institute of Technology · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The trimeric spike (S) glycoprotein, which protrudes from the SARS-CoV-2 viral envelope, binds to human ACE2, initiated by at least one protomer's receptor binding domain (RBD) switching from a "down" (closed) to an "up" (open) state. Here, we used large-scale molecular dynamics simulations and two-dimensional replica exchange umbrella sampling calculations with more than a thousand windows and an aggregate total of 160 μs of simulation to investigate this transition with and without glycans. We find that the glycosylated spike has a higher barrier to opening and also energetically favors the down state over the up state. Analysis of the S-protein opening pathway reveals that glycans at N165 and N122 interfere with hydrogen bonds between the RBD and the N-terminal domain in the up state, while glycans at N165 and N343 can stabilize both the down and up states. Finally, we estimate how epitope exposure for several known antibodies changes along the opening path. We find that the BD-368-2 antibody's epitope is continuously exposed, explaining its high efficacy.

Indexed as

COVID-19SARS-CoV-2Angiotensin-Converting Enzyme 2EpitopesHumansPeptidyl-Dipeptidase APolysaccharidesSpike Glycoprotein, CoronavirusAngiotensin-Converting Enzyme 2EpitopesPeptidyl-Dipeptidase APolysaccharidesSpike Glycoprotein, Coronavirusspike protein, SARS-CoV-2

Identifiers

PMID36329138
PMCPMC9631587
OpenAlexW4308497376

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.