Evidence map›Paper›PMID 12117915›Full record

ArticleInfection and immunity2002

Recurrent variable region gene usage and somatic mutation in the human antibody response to the capsular polysaccharide of Streptococcus pneumoniae type 23F.

Jianhui Zhou, Kathleen R Lottenbach, Stephen J Barenkamp, Alexander H Lucas, Donald C Reason

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
6.6field-weighted citation impact, top 3% 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

50 citing papers in PubMed, 96 citations in OpenAlex.

  1. Trial
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  7. The human spleen as the center of the blood defense system.International journal of hematology · 2020
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  14. Deep sequencing and human antibody repertoire analysis.Current opinion in immunology · 2016
    Review
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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.

Jianhui ZhouChildren's Hospital Oakland Research Institute, Oakland, California 94609, USA.
Kathleen R Lottenbach
Stephen J Barenkamp
Alexander H Lucas
Donald C Reason
Saint Louis University · US

Funding

HUMAN ANTIBODY REPERTOIRE TO H INFLUENZAE BR37AI025008 · NIAID · CHILDREN'S HOSPITAL &RES CTR AT OAKLAND · PI LUCAS, ALEXANDER H. · 1995 to 2004
$2.5M
Polysaccharide Antibody RepertoiresR01AI025008 · NIAID · SCRIPPS CLINIC AND RESEARCH FOUNDATION · PI LUCAS, ALEXANDER H. · 1987 to 2010
$2.0M
MOLECULAR DETERMINANTS OF HUMAN PNEUMOCOCCAL IMMUNITYR01AI047136 · NIAID · CHILDREN'S HOSPITAL &RES CTR AT OAKLAND · PI REASON, DONALD C · 2000 to 2004
$1.8M
CONTROL MEASURES IN AGING AND INFECTIOUS DISEASE-266945250N01AI045250 · NIAID · SAINT LOUIS UNIVERSITY · 1994 to 2003
$0k
NIAID NIH HHS AI25008NIAID NIH HHS AI47136NIAID NIH HHS N01 AI045250NIAID NIH HHS R01 AI025008NIAID NIH HHS R01 AI047136NIAID NIH HHS R37 AI025008
6 · The paper itself

Abstract

Combinatorial cloning and expression library analysis were used to isolate human antibody Fab fragments specific for the capsular polysaccharide of Streptococcus pneumoniae serotype 23F. Thirty 23F-specific Fabs were isolated from seven vaccinated donors, and the sequences of the heavy (H)- and light (L)-chain variable regions were determined. All individuals utilized either the Vkappa A23 L chain, the Vkappa L6 L chain, or both chains in forming the 23F-specific combining site. Vkappa A23 L chains paired primarily with VH3-23 H chains. Vkappa L6 L chains were more promiscuous in heavy-chain usage between individuals. Both H and L chains were mutated, primarily in the complementarity-determining regions, compared to their closest germ line counterpart, suggesting a recall response that has undergone affinity maturation. H-chain isotypes were reflective of those found in the serum. Shared somatic modifications demonstrated that immunoglobulin G2 (IgG2) and IgA antibodies arose from the same somatically matured B cell. Our results indicate that the response to the serotype 23F pneumococcal capsular polysaccharide is oligoclonal within the individual, with one or two paratope families accounting for the majority of expressed antibody. We also determined that, in spite of the combinatorial diversity available to the immune system, the 23F-specific response is highly restricted at the population level, with the same two L-chain-determined paratope families recurring in all individuals. Lastly, analysis of the isolated Fabs indicate all have undergone extensive somatic mutation, as well as class switch, maturational events that presumably require the participation of T cells.

Indexed as

Genes, ImmunoglobulinAdultAmino Acid SequenceAntibodies, BacterialBacterial CapsulesBase SequenceB-LymphocytesCells, CulturedDNA, ComplementaryHumansImmunoglobulin Fab FragmentsImmunoglobulin Heavy ChainsImmunoglobulin kappa-ChainsImmunoglobulin Variable RegionMolecular Sequence DataMutagenesis23-valent pneumococcal capsular polysaccharide vaccineAntibodies, BacterialDNA, ComplementaryImmunoglobulin Fab FragmentsImmunoglobulin Heavy ChainsImmunoglobulin kappa-ChainsImmunoglobulin Variable RegionPneumococcal VaccinesRecombinant Fusion Proteins

Identifiers

PMID12117915
PMCPMC128163
OpenAlexW2146643550

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.