Evidence map›Paper›PMID 29442996›Full record

ArticleeLife2018

Role of framework mutations and antibody flexibility in the evolution of broadly neutralizing antibodies.

Victor Ovchinnikov, Joy E Louveau, John P Barton, Martin Karplus, Arup K Chakraborty

Abstract read
In one paragraph

Article in eLife, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing 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

60 citing papers in PubMed.

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  16. Effects ofFrontiers in molecular biosciences · 2024
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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.

Victor Ovchinnikov *Department of Chemistry and Chemical Biology, Harvard University, Cambridge, United States.ORCID 0000-0002-1793-2352
Joy E Louveau *Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, United States.
John P Barton *Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, United States.ORCID 0000-0003-1467-421X
Martin KarplusDepartment of Chemistry and Chemical Biology, Harvard University, Cambridge, United States.
Arup K ChakrabortyDepartment of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, United States.ORCID 0000-0003-1268-9602

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Eliciting antibodies that are cross reactive with surface proteins of diverse strains of highly mutable pathogens (e.g., HIV, influenza) could be key for developing effective universal vaccines. Mutations in the framework regions of such broadly neutralizing antibodies (bnAbs) have been reported to play a role in determining their properties. We used molecular dynamics simulations and models of affinity maturation to study specific bnAbs against HIV. Our results suggest that there are different classes of evolutionary lineages for the bnAbs. If germline B cells that initiate affinity maturation have high affinity for the conserved residues of the targeted epitope, framework mutations increase antibody rigidity as affinity maturation progresses to evolve bnAbs. If the germline B cells exhibit weak/moderate affinity for conserved residues, an initial increase in flexibility via framework mutations may be required for the evolution of bnAbs. Subsequent mutations that increase rigidity result in highly potent bnAbs. Implications of our results for immunogen design are discussed.

Indexed as

Antibody AffinityAntibodies, NeutralizingB-LymphocytesEpitopes, B-LymphocyteEvolution, MolecularHIV AntibodiesModels, MolecularMolecular Dynamics SimulationAntibodies, NeutralizingEpitopes, B-LymphocyteHIV Antibodiesaffinity maturationbroadly neutralizing antibodiescomputational biologyframework mutationsHIVimmunologyinflammationmolecular dynamicsnonesystems biology

Identifiers

PMID29442996
PMCPMC5828663

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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.