Evidence map›Paper›PMID 11971977›Full record

ArticleMolecular and cellular biology2002

Mutational analysis of all conserved basic amino acids in RAG-1 reveals catalytic, step arrest, and joining-deficient mutants in the V(D)J recombinase.

Leslie E Huye, Mary M Purugganan, Ming-Ming Jiang, David B Roth

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In one paragraph

Article in Molecular and cellular biology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
6.8field-weighted citation impact, top 2% 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

34 citing papers in PubMed, 70 citations in OpenAlex.

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  15. RAG: a recombinase diversified.Nature immunology · 2009
    Review
  16. Article
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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

4 authors at 3 institutions in 2 countries.

Leslie E HuyeDepartment of Immunolog, Baylor College of Medicine, Houston, Texas 77030, USA.
Mary M Purugganan
Ming-Ming Jiang
David B Roth
Baylor College of Medicine · USGenomics (United Kingdom) · GBHoward Hughes Medical Institute · US

Funding

Mechanisms of V(D) J RecombinationR01AI036420 · NIAID · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI ROTH, DAVID B. · 1994 to 2009
$2.6M
MOLECULAR AND CELLULAR MECHANISMS OF HOST DEFENSET32AI007495 · NIAID · BAYLOR COLLEGE OF MEDICINE · PI TAN, TSE-HUA · 1996 to 2011
$2.4M
NIAID NIH HHS AI-36420NIAID NIH HHS R01 AI036420NIAID NIH HHS T32 AI007495NIAID NIH HHS T32-AI07495
6 · The paper itself

Abstract

Although both RAG-1 and RAG-2 are required for all steps of V(D)J recombination, little is known about the specific contribution of either protein to these steps. RAG-1 contains three acidic active-site amino acids that are thought to coordinate catalytic metal ions. To search for additional catalytic amino acids and to better define the functional anatomy of RAG-1, we mutated all 86 conserved basic amino acids to alanine and evaluated the mutant proteins for DNA binding, nicking, hairpin formation, and joining. We found several amino acids outside of the canonical nonamer-binding domain that are critical for DNA binding, several step arrest mutants with defects in nicking or hairpin formation, and four RAG-1 mutants defective specifically for joining. Analysis of coding joints formed by some of these mutants revealed excessive deletions, frequent use of short sequence homologies, and unusually long palindromic junctional inserts, known as P nucleotides, that result from aberrant hairpin opening. These features characterize junctions found in scid mice, which are deficient for the catalytic subunit of DNA-dependent protein kinase (DNA-PKcs), suggesting that the RAG proteins and DNA-PKcs perform overlapping functions in coding joint formation. Interestingly, the amino acids that are altered in 12 of our mutants are also mutated in human inherited immunodeficiency syndromes. Our analysis of these mutants provides insights into the molecular mechanisms underlying these disorders.

Indexed as

AlanineAmino AcidsAmino Acid SequenceAnimalsDNADNA-Binding ProteinsDNA NucleotidyltransferasesGenes, RAG-1Homeodomain ProteinsHumansMiceMolecular Sequence DataMutagenesis, Site-DirectedMutationNucleic Acid ConformationOligonucleotidesAlanineAmino AcidsDNADNA-Binding ProteinsDNA NucleotidyltransferasesHomeodomain ProteinsOligonucleotidesRAG-1 proteinRecombinant Fusion ProteinsTransposasesVDJ Recombinases

Identifiers

PMID11971977
PMCPMC133788
OpenAlexW2020284598

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Registered trials

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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.