Evidence map›Paper›PMID 16799561›Full record

ArticleNature immunology2006

Ancient evolutionary origin of diversified variable regions demonstrated by crystal structures of an immune-type receptor in amphioxus.

José A Hernández Prada, Robert N Haire, Marc Allaire, Jean Jakoncic, Vivian Stojanoff, John P Cannon, Gary W Litman, David A Ostrov

Open access · greenAbstract read
In one paragraph

Article in Nature immunology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

30 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Review
  3. Tethering of soluble immune effectors to mucin and chitin reflects a convergent and dynamic role in gut immunity.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024
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  8. Binding mode of the side-by-side two-IgV molecule CD226/DNAM-1 to its ligand CD155/Necl-5.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
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  10. Article
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  15. Article
  16. Review
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  18. A role for variable region-containing chitin-binding proteins (VCBPs) in host gut-bacteria interactions.Proceedings of the National Academy of Sciences of the United States of America · 2011
    Article
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  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 1 country.

José A Hernández PradaDepartment of Pathology, Immunology and Laboratory Medicine, University of Florida College of Medicine, Gainesville, Florida 32610, USA.
Robert N Haire
Marc Allaire
Jean Jakoncic
Vivian Stojanoff
John P Cannon
Gary W Litman
David A Ostrov
Brookhaven National Laboratory · USFlorida College · USUniversity of South Florida St. Petersburg · USJohns Hopkins University · US

Funding

EVOLUTIONARY ORIGINS OF IMMUNE-TYPE GENESR01AI023338 · NIAID · UNIVERSITY OF SOUTH FLORIDA · PI LITMAN, GARY WILLIAM · 1985 to 2014
$3.6M
Small molecules to treat alpha-1 antitrypsin deficiencyR21HL080222 · NHLBI · UNIVERSITY OF FLORIDA · PI LIU, CHEN · 2005 to 2006
$359k
NHLBI NIH HHS R21 HL080222NIAID NIH HHS R01 AI023338NIAID NIH HHS R01 AI23338NIDCR NIH HHS R01 DE013883NIGMS NIH HHS Y01 GM000080
6 · The paper itself

Abstract

Although the origins of genes encoding the rearranging binding receptors remain obscure, it is predicted that their ancestral forms were nonrearranging immunoglobulin-type domains. Variable region-containing chitin-binding proteins (VCBPs) are diversified immune-type molecules found in amphioxus (Branchiostoma floridae), an invertebrate that diverged early in deuterostome phylogeny. To study the potential evolutionary relationships between VCBPs and vertebrate adaptive immune receptors, we solved the structures of both a single V-type domain (to 1.15 A) and a pair of V-type domains (to 1.85 A) from VCBP3. The deduced structures show integral features of the ancestral variable-region fold as well as unique features of variable-region pairing in molecules that may reflect characteristics of ancestral forms of diversified immune receptors found in modern-day vertebrates.

Indexed as

Evolution, MolecularAnimalsChordata, NonvertebrateCrystallography, X-RayImmunoglobulin Variable RegionProtein Structure, QuaternaryReceptors, ImmunologicImmunoglobulin Variable RegionReceptors, Immunologic

Identifiers

PMID16799561
PMCPMC3707131
OpenAlexW1979494106

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.