Evidence map›Paper›PMID 9864344›Full record

ArticleJournal of bacteriology1999

Doxorubicin overproduction in Streptomyces peucetius: cloning and characterization of the dnrU ketoreductase and dnrV genes and the doxA cytochrome P-450 hydroxylase gene.

N Lomovskaya, S L Otten, Y Doi-Katayama, L Fonstein, X C Liu, T Takatsu, A Inventi-Solari, S Filippini, F Torti, A L Colombo and 1 more

Abstract read
In one paragraph

Article in Journal of bacteriology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
–field-weighted citation impact
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

41 citing papers in PubMed.

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  18. Rethinking Biosynthesis of Aclacinomycin A.Molecules (Basel, Switzerland) · 2023
    Review
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  20. Review
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

11 authors.

N LomovskayaSchool of Pharmacy, University of Wisconsin, Madison, Wisconsin 53706, USA.
S L Otten
Y Doi-Katayama
L Fonstein
X C Liu
T Takatsu
A Inventi-Solari
S Filippini
F Torti
A L Colombo
C R Hutchinson

Funding

DOXORUBICIN BIOSYNTHESIS AND RESISTANCER01CA064161 · NCI · UNIVERSITY OF WISCONSIN MADISON · PI SIH, CHARLES J · 1996 to 2000
$185k
NCI NIH HHS CA 64161
6 · The paper itself

Abstract

Doxorubicin-overproducing strains of Streptomyces peucetius ATCC 29050 can be obtained through manipulation of the genes in the region of the doxorubicin (DXR) gene cluster that contains dpsH, the dpsG polyketide synthase gene, the putative dnrU ketoreductase gene, dnrV, and the doxA cytochrome P-450 gene. These five genes were characterized by sequence analysis, and the effects of replacing dnrU, dnrV, doxA, or dpsH with mutant alleles and of doxA overexpression on the production of the principal anthracycline metabolites of S. peucetius were studied. The exact roles of dpsH and dnrV could not be established, although dnrV is implicated in the enzymatic reactions catalyzed by DoxA, but dnrU appears to encode a ketoreductase specific for the C-13 carbonyl of daunorubicin (DNR) and DXR or their biosynthetic precursors. The highest DXR titers were obtained in a dnrX dnrU (N. Lomovskaya, Y. Doi-Katayama, S. Filippini, C. Nastro, L. Fonstein, M. Gallo, A. L. Colombo, and C. R. Hutchinson, J. Bacteriol. 180:2379-2386, 1998) double mutant and a dnrX dnrU dnrH (C. Scotti and C. R. Hutchinson, J. Bacteriol. 178:7316-7321, 1996) triple mutant. Overexpression of doxA in a doxA::aphII mutant resulted in the accumulation of DXR precursors instead of in a notable increase in DXR production. In contrast, overexpression of dnrV and doxA jointly in the dnrX dnrU double mutant or the dnrX dnrU dnrH triple mutant increased the DXR titer 36 to 86%.

Indexed as

Genes, BacterialAcyl Carrier ProteinAlcohol OxidoreductasesAmino Acid SequenceAnthracyclinesBacterial ProteinsBase SequenceChromosome MappingCloning, MolecularCytochrome P-450 Enzyme SystemDNA, BacterialDNA PrimersDoxorubicinGene ExpressionGenetic Complementation TestMixed Function OxygenasesAcyl Carrier ProteinAlcohol OxidoreductasesAnthracyclinesBacterial ProteinsCytochrome P-450 Enzyme Systemdaunorubicin ketoreductaseDNA, BacterialDNA PrimersDnrV protein, Streptomyces peucetiusdoxA protein, Streptomyces peucetiusDoxorubicinMixed Function Oxygenases

Identifiers

PMID9864344
PMCPMC103563

What OpenQuestion holds

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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.