Evidence map›Paper›PMID 31843892›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2019

Affinity maturation in a human humoral response to influenza hemagglutinin.

Kevin R McCarthy, Donald D Raymond, Khoi T Do, Aaron G Schmidt, Stephen C Harrison

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

19 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
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  5. Review
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  10. Review
  11. Review
  12. Article
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  14. Article
  15. High-resolution asymmetric structure of a Fab-virus complex reveals overlap with the receptor binding site.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  16. Review
  17. Progress toward improved understanding of antibody maturation.Current opinion in structural biology · 2021
    Review
  18. Article
  19. 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

5 authors.

Kevin R McCarthyLaboratory of Molecular Medicine, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115.
Donald D RaymondLaboratory of Molecular Medicine, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115.
Khoi T DoLaboratory of Molecular Medicine, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115.
Aaron G SchmidtLaboratory of Molecular Medicine, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115.
Stephen C HarrisonLaboratory of Molecular Medicine, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115.ORCID 0000-0001-7215-9393

Funding

Virology CoreP01AI089618 · NIAID · BOSTON CHILDREN'S HOSPITAL · PI Jiwon Lee · 2011 to 2026
$40.0M
Structures and Interactions of Antibodies Produced by Affinity MaturationU19AI117892 · NIAID · BOSTON UNIVERSITY MEDICAL CAMPUS · PI HARRISON, STEPHEN COPLAN · 2015 to 2019
$9.2M
NIAID NIH HHS P01 AI089618NIAID NIH HHS U19 AI117892
6 · The paper itself

Abstract

Affinity maturation of the B cell antigen receptor (BCR) is a conserved and crucial component of the adaptive immune response. BCR lineages, inferred from paired heavy- and light-chain sequences of rearranged Ig genes from multiple descendants of the same naive B cell precursor (the lineages' unmutated common ancestor, "UCA"), make it possible to reconstruct the underlying somatic evolutionary history. We present here an extensive structural and biophysical analysis of a lineage of BCRs directed against the receptor binding site (RBS) of subtype H1 influenza virus hemagglutinin (HA). The lineage includes 8 antibodies detected directly by sequencing, 3 in 1 principal branch and 5 in the other. When bound to HA, the heavy-chain third complementarity determining region (HCDR3) fits with an invariant pose into the RBS, but in each of the 2 branches, the rest of the Fab reorients specifically, from its position in the HA-bound UCA, about a hinge at the base of HCDR3. New contacts generated by the reorientation compensate for contacts lost as the H1 HA mutated during the time between the donor's initial exposure and the vaccination that preceded sampling. Our data indicate that a "pluripotent" naive response differentiated, in each branch, into 1 of its possible alternatives. This property of naive BCRs and persistence of multiple branches of their progeny lineages can offer broader protection from evolving pathogens than can a single, linear pathway of somatic mutation.

Indexed as

antibodyB cellinfluenza virusvaccineX-ray crystallography

Identifiers

PMID31843892
PMCPMC6936356

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.