Evidence map›Paper›PMID 25320089›Full record

ArticleThe Journal of biological chemistry2014

Nucleotide insertions and deletions complement point mutations to massively expand the diversity created by somatic hypermutation of antibodies.

Peter M Bowers, Petra Verdino, Zhengyuan Wang, Jean da Silva Correia, Mark Chhoa, Griffin Macondray, Minjee Do, Tamlyn Y Neben, Robert A Horlick, Robyn L Stanfield and 2 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
0.8field-weighted citation impact, top 27% 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

15 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. In vitro evolution of antibody affinity via insertional scanning mutagenesis of an entire antibody variable region.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  8. Article
  9. Review
  10. Review
  11. Review
  12. Review
  13. Article
  14. Review
  15. 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

12 authors at 2 institutions in 1 country.

Peter M BowersFrom Anaptysbio Inc., San Diego, California 92121 and pbowers@anaptysbio.com.
Petra VerdinoFrom Anaptysbio Inc., San Diego, California 92121 and.
Zhengyuan WangFrom Anaptysbio Inc., San Diego, California 92121 and.
Jean da Silva CorreiaFrom Anaptysbio Inc., San Diego, California 92121 and.
Mark ChhoaFrom Anaptysbio Inc., San Diego, California 92121 and.
Griffin MacondrayFrom Anaptysbio Inc., San Diego, California 92121 and.
Minjee DoFrom Anaptysbio Inc., San Diego, California 92121 and.
Tamlyn Y NebenFrom Anaptysbio Inc., San Diego, California 92121 and.
Robert A HorlickFrom Anaptysbio Inc., San Diego, California 92121 and.
Robyn L Stanfieldthe Department of Integrative Structural and Computational Molecular Biology and Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037.
Ian A Wilsonthe Department of Integrative Structural and Computational Molecular Biology and Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037.
David J KingFrom Anaptysbio Inc., San Diego, California 92121 and.
AnaBios (United States) · USScripps Research Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

During somatic hypermutation (SHM), deamination of cytidine by activation-induced cytidine deaminase and subsequent DNA repair generates mutations within immunoglobulin V-regions. Nucleotide insertions and deletions (indels) have recently been shown to be critical for the evolution of antibody binding. Affinity maturation of 53 antibodies using in vitro SHM in a non-B cell context was compared with mutation patterns observed for SHM in vivo. The origin and frequency of indels seen during in vitro maturation were similar to that in vivo. Indels are localized to CDRs, and secondary mutations within insertions further optimize antigen binding. Structural determination of an antibody matured in vitro and comparison with human-derived antibodies containing insertions reveal conserved patterns of antibody maturation. These findings indicate that activation-induced cytidine deaminase acting on V-region sequences is sufficient to initiate authentic formation of indels in vitro and in vivo and that point mutations, indel formation, and clonal selection form a robust tripartite system for antibody evolution.

Indexed as

INDEL MutationSomatic Hypermutation, ImmunoglobulinComplementarity Determining RegionsCytidine DeaminaseFemaleHumansMaleComplementarity Determining RegionsCytidine DeaminaseAntibodyAntigenCellular Immune ResponseProtein EvolutionX-ray Crystallography

Identifiers

PMID25320089
PMCPMC4246108
OpenAlexW1964853989

What OpenQuestion holds

Textmetadata
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.