Evidence map›Paper›PMID 28442735›Full record

ReviewThe Journal of antibiotics2017

Novel antibiotic screening methods to awaken silent or cryptic secondary metabolic pathways in actinomycetes.

Hiroyasu Onaka

Abstract readReview
PubMed Publisher
In one paragraph

Review in The Journal of antibiotics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing 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

66 citing papers in PubMed.

  1. Synthetic and systems biotechnology · 2026
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  9. The genus Nocardia as a source of new antimicrobials.npj antimicrobials and resistance · 2025
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  20. Dissection of 3D chromosome organization inProceedings of the National Academy of Sciences of the United States of America · 2023
    Article

6 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

1 author.

Hiroyasu OnakaDepartment of Biotechnology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Streptomyces have the potential to produce more than 30 secondary metabolites; however, the expression of most metabolite biosynthetic gene clusters is cryptic or silent. Indeed, the expression of these genes is conditional and dependent on culture conditions. To activate such gene clusters, many methods have been developed. In this review, I describe two activation approaches developed in my laboratory: use of the activation mediator goadsporin and combined-culture. Goadsporin is a chemical substance isolated from Streptomyces sp. TP-A0584; it induces secondary metabolism and sporulation of many Streptomyces species. Combined-culture is a co-culture method to activate secondary metabolism in Streptomyces. The activator strains are mycolic acid-containing bacteria and ~90% of Streptomyces species show changes in secondary metabolism in combined-culture compared with pure culture. Thus, both methods may have applications in natural product-based drug discovery.

Indexed as

Anti-Bacterial AgentsCoculture TechniquesDrug DiscoveryIntercellular Signaling Peptides and ProteinsMultigene FamilyPeptidesSecondary MetabolismStreptomycesAnti-Bacterial AgentsgoadsporinIntercellular Signaling Peptides and ProteinsPeptides

Identifiers

PMID28442735

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.