Evidence map›Paper›PMID 25928409›Full record

ArticleBiology direct2015

Evolution of the RAG1-RAG2 locus: both proteins came from the same transposon.

Vladimir V Kapitonov, Eugene V Koonin

Open access · goldAbstract read
In one paragraph

Article in Biology direct, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed
6.3field-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

73 citing papers in PubMed, 131 citations in OpenAlex.

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  19. Mobilome of theInternational journal of molecular sciences · 2022
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13 more citing papers are in PubMed but not listed here.

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

2 authors at 2 institutions in 1 country.

Vladimir V KapitonovNational Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA. kvladimirv@gmail.com.
Eugene V KooninNational Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA. koonin@ncbi.nlm.nih.gov.
National Center for Biotechnology Information · USNational Institutes of Health · US

Funding

Comparative Analysis Of Completely Sequenced GenomesZIALM000073 · NLM · NATIONAL LIBRARY OF MEDICINE · PI KOONIN, EUGENE V · 2009 to 2025
$43.1M
Finding Protein Sequence Motifs--Methods And ApplicationsZIALM000061 · NLM · NATIONAL LIBRARY OF MEDICINE · PI KOONIN, EUGENE V · 2009 to 2025
$10.6M
6 · The paper itself

Abstract

The RAG1 and RAG2 proteins are essential subunits of the V(D)J recombinase that is required for the generation of the enormous variability of antibodies and T-cell receptors in jawed vertebrates. It was demonstrated previously that the 600-aa catalytic core of RAG1 evolved from the transposase of the Transib superfamily transposons. However, although homologs of RAG1 and RAG2 genes are adjacent in the purple sea urchin genome, a transposon encoding both proteins so far has not been reported. Here we describe such transposons in the genomes of green sea urchin, a starfish and an oyster. Comparison of the domain architectures of the RAG1 homologs in these transposons, denoted TransibSU, and other Transib superfamily transposases provides for reconstruction of the structure of the hypothetical TransibVDJ transposon that gave rise to the VDJ recombinases at the onset of vertebrate evolution some 500 million years ago.

Indexed as

Evolution, MolecularAnimalsDNA-Binding ProteinsDNA Transposable ElementsGenomeHomeodomain ProteinsOstreidaePhylogenyRecombination, GeneticSea UrchinsStarfishTransposasesDNA-Binding ProteinsDNA Transposable ElementsHomeodomain ProteinsRAG-1 proteinTransposasesV(D)J recombination activating protein 2

Identifiers

PMID25928409
PMCPMC4411706
OpenAlexW1968100598

What OpenQuestion holds

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LicenceCC BY
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.