Evidence map›Paper›PMID 26525981›Full record

ArticleMicrobial cell factories2015

Identification of novel tylosin analogues generated by a wblA disruption mutant of Streptomyces ansochromogenes.

Cheng Lu, Guojian Liao, Jihui Zhang, Huarong Tan

Open access · goldAbstract read
In one paragraph

Article in Microbial cell factories, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 8% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. NewTheScientificWorldJournal · 2025
    Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Genetic Engineering ofMicroorganisms · 2021
    Article
  9. Article
  10. WblA, a global regulator of antibiotic biosynthesis in Streptomyces.Journal of industrial microbiology & biotechnology · 2021
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
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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 1 country.

Cheng LuState Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China. Lucheng522@aliyun.com.
Guojian LiaoCollege of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, China. guojianliao@gmail.com.
Jihui ZhangState Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China. zhang.jihui@im.ac.uk.
Huarong TanState Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China. tanhr@im.ac.cn.
Microbiology Institute of Shaanxi · CNChinese Academy of Sciences · CNSouthwest University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStreptomyces, as the main source of antibiotics, has been intensively exploited for discovering new drug candidates to combat the evolving pathogens. Disruption of wblA, an actinobacteria-specific gene controlling major developmental transition, can cause the alteration of phenotype and morphology in many species of Streptomyces. One wblA homologue was found in Streptomyces ansochromogenes 7100 by using the Basic Local Alignment Search Tool. It is interesting to identify whether novel secondary metabolites could be produced by the wblA disruption mutant as evidenced in other Streptomyces.

resultsThe wblA disruption mutant of S. ansochromogenes 7100 (ΔwblA) was constructed by homologous recombination. ΔwblA failed to produce spores and nikkomycin, the major product of S. ansochromogenes 7100 (wild-type strain) during fermentation. Antibacterial activity against Staphylococcus aureus and Bacillus cereus was observed with fermentation broth of ΔwblA but not with that of the wild-type strain. To identify the antibacterial compounds, the two compounds (compound 1 and compound 2) produced by ΔwblA were characterized as 16-membered macrolides by mass spectrometry and nuclear magnetic resonance spectroscopy. The chemical structure of these compounds shows similarity with tylosin, and the bioassays indicated that the two compounds inhibited the growth of a number of gram-positive bacteria. It is intriguing that they displayed much higher activity than tylosin against Streptococcus pneumoniae.

conclusionsTwo novel tylosin analogues (compound 1 and 2) were generated by ΔwblA. Bioassays showed that compound 1 and 2 displayed much higher activity than tylosin against Streptococcus pneumoniae, implying that these two compounds might be used to widen the application of tylosin.

Indexed as

AminoglycosidesAnti-Bacterial AgentsBacterial ProteinsDisk Diffusion Antimicrobial TestsGlycosidesGram-Positive BacteriaMagnetic Resonance SpectroscopyMass SpectrometryMolecular ConformationMutationPhenotypeStreptococcus pneumoniaeStreptomycesTylosin23-O-mycinosyltylactone6-hydroxy-21-O-mycinosyltylactoneAminoglycosidesAnti-Bacterial AgentsBacterial ProteinsGlycosidesnikkomycinTylosin

Identifiers

PMID26525981
PMCPMC4630966
OpenAlexW2155428398

What OpenQuestion holds

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LicenceCC BY
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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.