Evidence map›Paper›PMID 10603393›Full record

ArticleInfection and immunity2000

Enhanced production of recombinant Mycobacterium tuberculosis antigens in Escherichia coli by replacement of low-usage codons.

D L Lakey, R K Voladri, K M Edwards, C Hager, B Samten, R S Wallis, P F Barnes, D S Kernodle

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

21 citing papers in PubMed, 65 citations in OpenAlex.

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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

8 authors at 4 institutions in 1 country.

D L LakeyDivisions of Infectious Diseases, Departments of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, USA. dlakey@uthct.edu
R K Voladri
K M Edwards
C Hager
B Samten
R S Wallis
P F Barnes
D S Kernodle
Office of Infectious Diseases · USPalo Alto Center for Pulmonary Disease Prevention · USVanderbilt University · USCase Western Reserve University · US

Funding

Vanderbilt Infection Pathogenesis and Epidemiology Research Training ProgramT32AI007474 · NIAID · VANDERBILT UNIVERSITY MEDICAL CENTER · PI KALAMS, SPYROS A · 1995 to 2025
$6.9M
MECHANISMS FOR REDUCED TH1 RESPONSES IN TUBERCULOSISR01AI027285 · NIAID · UNIVERSITY OF TEXAS HLTH CTR AT TYLER · PI BARNES, PETER F. · 1989 to 2000
$245k
SUPEROXIDE DISMUTASE IN SURVIVAL OF M TUBERCULOSISR01AI037871 · NIAID · VANDERBILT UNIVERSITY · PI EDWARDS, KATHRYN MARGARET · 1995 to 1997
–
NIAID NIH HHS AI27285NIAID NIH HHS AI37871NIAID NIH HHS T 32 AI 07474
6 · The paper itself

Abstract

A major obstacle to development of subunit vaccines and diagnostic reagents for tuberculosis is the inability to produce large quantities of these proteins. To test the hypothesis that poor expression of some mycobacterial genes in Escherichia coli is due, in part, to the presence of low-usage E. coli codons, we used site-directed mutagenesis to convert low-usage codons to high-usage codons for the same amino acid in the Mycobacterium tuberculosis genes for antigens 85A and 85B and superoxide dismutase. Replacement of five codons in the wild-type gene for antigen 85B increased recombinant protein production in E. coli 54-fold. The recombinant antigen elicited proliferation and gamma interferon production by lymphocytes from healthy tuberculin reactors and was recognized by monoclonal antibodies to native antigen 85, indicating that the recombinant antigen contained T-cell and B-cell epitopes. Northern blotting demonstrated only a 1.7- to 2.5-fold increase in antigen 85B mRNA, suggesting that the enhanced protein production was due primarily to enhanced efficiency of translation. Codon replacement in the genes encoding antigen 85A and superoxide dismutase yielded four- to sixfold increases in recombinant protein production, suggesting that this strategy may be generally applicable to overexpression of mycobacterial genes in E. coli.

Indexed as

Genes, BacterialAnimalsAntibodies, MonoclonalAntigens, BacterialBase SequenceCodonDNA PrimersEscherichia coliGene ExpressionHumansIn Vitro TechniquesMutagenesis, Site-DirectedMycobacterium tuberculosisPromoter Regions, GeneticRecombinant ProteinsRNA, BacterialAntibodies, MonoclonalAntigens, BacterialCodonDNA PrimersRecombinant ProteinsRNA, BacterialRNA, MessengerSuperoxide Dismutase

Identifiers

PMID10603393
PMCPMC97126
OpenAlexW2147673565

What OpenQuestion holds

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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.