Evidence map›Paper›PMID 23487799›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2013

Organization of lamprey variable lymphocyte receptor C locus and repertoire development.

Sabyasachi Das, Masayuki Hirano, Narges Aghaallaei, Baubak Bajoghli, Thomas Boehm, Max D Cooper

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

28 citing papers in PubMed, 54 citations in OpenAlex.

  1. Review
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  7. Review
  8. Evolution of variable lymphocyte receptor B antibody loci in jawless vertebrates.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  9. Review
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  13. Review
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  16. Zebrafish and Medaka: Two Teleost Models of T-Cell and Thymic Development.International journal of molecular sciences · 2019
    Review
  17. Article
  18. Expansions, diversification, and interindividual copy number variations of AID/APOBEC family cytidine deaminase genes in lampreys.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Sabyasachi DasEmory Vaccine Center, and Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA 30322, USA.
Masayuki Hirano
Narges Aghaallaei
Baubak Bajoghli
Thomas Boehm
Max D Cooper
Emory University · USMax Planck Institute of Immunobiology and Epigenetics · DE

Funding

Characterization of the Lamprey Adaptive Immune SystemR01AI072435 · NIAID · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI Max Dale Cooper · 2007 to 2026
$8.1M
Definition of an Ancient T cell-like System in LampreysR01GM100151 · NIGMS · EMORY UNIVERSITY · PI COOPER, MAX DALE · 2012 to 2016
$1.5M
NIAID NIH HHS R01 AI072435NIGMS NIH HHS R01 GM100151
6 · The paper itself

Abstract

Jawless vertebrates are pivotal representatives for studies of the evolution of adaptive immunity due to their unique position in chordate phylogeny. Lamprey and hagfish, the extant jawless vertebrates, have an alternative lymphocyte-based adaptive immune system that is based on somatically diversifying leucine-rich repeat (LRR)-based antigen receptors, termed variable lymphocyte receptors (VLRs). Lamprey T-like and B-like lymphocyte lineages have been shown to express VLRA and VLRB types of anticipatory receptors, respectively. An additional VLR type, termed VLRC, has recently been identified in arctic lamprey (Lethenteron camtschaticum), and our analysis indicates that VLRC sequences are well conserved in sea lamprey (Petromyzon marinus), L. camtschaticum, and European brook lamprey (Lampetra planeri). Genome sequences of P. marinus were analyzed to determine the organization of the VLRC-encoding locus. In addition to the incomplete germ-line VLRC gene, we have identified 182 flanking donor genomic sequences that could be used to complete the assembly of mature VLRC genes. Donor LRR cassettes were classifiable into five basic structural groups, the composition of which determines their order of use during VLRC assembly by virtue of sequence similarities to the incomplete germ-line gene and to one another. Bidirectional VLRC assembly was predicted by comparisons of mature VLRC genes with the sequences of donor LRR cassettes and verified by analysis of partially assembled intermediates. Biased and repetitive use of certain donor LRR cassettes was demonstrable in mature VLRCs. Our analysis provides insight into the unique molecular strategies used for VLRC gene assembly and repertoire diversification.

Indexed as

Amino Acid SequenceAnimalsEvolution, MolecularGene RearrangementGenomeGenomicsMolecular Sequence DataPetromyzonPhylogenyReceptors, AntigenSequence AlignmentSequence Homology, Nucleic AcidReceptors, Antigen

Identifiers

PMID23487799
PMCPMC3625321
OpenAlexW2139796880

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.