Evidence map›Paper›PMID 9098068›Full record

ArticleJournal of bacteriology1997

Minimal Streptomyces sp. strain C5 daunorubicin polyketide biosynthesis genes required for aklanonic acid biosynthesis.

V B Rajgarhia, W R Strohl

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
8.7field-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

19 citing papers in PubMed, 71 citations in OpenAlex.

  1. Article
  2. Article
  3. Biosynthesis of Polyketides inMicroorganisms · 2019
    Review
  4. Structural and functional analysis of two di-domain aromatase/cyclases from type II polyketide synthases.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  5. Article
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  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. A multiplasmid approach to preparing large libraries of polyketides.Proceedings of the National Academy of Sciences of the United States of America · 1999
    Article
  14. Article
  15. Article
  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

2 authors at 1 institution in 1 country.

V B RajgarhiaDepartment of Microbiology, The Ohio State University, Columbus 43210, USA.
W R Strohl
The Ohio State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The structure of the Streptomyces sp. strain C5 daunorubicin type II polyketide synthase (PKS) gene region is different from that of other known type II PKS gene clusters. Directly downstream of the genes encoding ketoacylsynthase alpha and beta (KS alpha, KS beta) are two genes (dpsC, dpsD) encoding proteins of unproven function, both absent from other type II PKS gene clusters. Also in contrast to other type II PKS clusters, the gene encoding the acyl carrier protein (ACP), dpsG, is located about 6.8 kbp upstream of the genes encoding the daunorubicin KS alpha and KS beta. In this work, we demonstrate that the minimal genes required to produce aklanonic acid in heterologous hosts are dpsG (ACP), dauI (regulatory activator), dpsA (KS alpha), dpsB (KS beta), dpsF (aromatase), dpsE (polyketide reductase), and dauG (putative deoxyaklanonic acid oxygenase). The two unusual open reading frames, dpsC (KASIII homolog lacking a known active site) and dpsD (acyltransferase homolog), are not required to synthesize aklanonic acid. Additionally, replacement of dpsD or dpsCD in Streptomyces sp. strain C5 with a neomycin resistance gene (aphI) results in mutant strains that still produced anthracyclines.

Indexed as

AclarubicinAcyltransferasesAnthraquinonesBenzoisochromanequinonesChromosomes, BacterialDaunorubicinGenes, BacterialModels, ChemicalMutationOpen Reading FramesRestriction MappingSpecies SpecificityStreptomycesAclarubicinactinorhodinAcyltransferasesaklanonic acidAnthraquinonesBenzoisochromanequinonesDaunorubicin

Identifiers

PMID9098068
PMCPMC179019
OpenAlexW2153530580

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.