Evidence map›Paper›PMID 25479601›Full record

ArticlePloS one2014

Characterization of biosynthetic genes of ascamycin/dealanylascamycin featuring a 5'-O-sulfonamide moiety in Streptomyces sp. JCM9888.

Chunhua Zhao, Jianzhao Qi, Weixing Tao, Lei He, Wei Xu, Jason Chan, Zixin Deng

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.6field-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

18 citing papers in PubMed, 29 citations in OpenAlex.

  1. Identification and distribution of a downregulatory signaling alkyloxazole inProceedings of the National Academy of Sciences of the United States of America · 2026
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  2. Review
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  5. Article
  6. Biosynthesis of sulfonamide and sulfamate antibiotics in actinomycete.Journal of industrial microbiology & biotechnology · 2021
    Review
  7. Isolation of 5'-RSC advances · 2021
    Article
  8. Article
  9. Two 3'-Chemical science · 2019
    Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Review
  17. Natural and engineered biosynthesis of nucleoside antibiotics in Actinomycetes.Journal of industrial microbiology & biotechnology · 2016
    Review
  18. Purification and crystallographic analysis of a FAD-dependent halogenase from Streptomyces sp. JCM9888.Acta crystallographica. Section F, Structural biology communications · 2015
    Article
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

7 authors at 2 institutions in 2 countries.

Chunhua ZhaoKey Laboratory of Combinatory Biosynthesis and Drug Discovery (Ministry of Education) and School of Pharmaceutical Sciences, Wuhan University, 185 East Lake Road, Wuhan, 430071, PR China.
Jianzhao QiKey Laboratory of Combinatory Biosynthesis and Drug Discovery (Ministry of Education) and School of Pharmaceutical Sciences, Wuhan University, 185 East Lake Road, Wuhan, 430071, PR China.
Weixing TaoKey Laboratory of Combinatory Biosynthesis and Drug Discovery (Ministry of Education) and School of Pharmaceutical Sciences, Wuhan University, 185 East Lake Road, Wuhan, 430071, PR China.
Lei HeKey Laboratory of Combinatory Biosynthesis and Drug Discovery (Ministry of Education) and School of Pharmaceutical Sciences, Wuhan University, 185 East Lake Road, Wuhan, 430071, PR China.
Wei XuKey Laboratory of Combinatory Biosynthesis and Drug Discovery (Ministry of Education) and School of Pharmaceutical Sciences, Wuhan University, 185 East Lake Road, Wuhan, 430071, PR China.
Jason ChanDepartment of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
Zixin DengKey Laboratory of Combinatory Biosynthesis and Drug Discovery (Ministry of Education) and School of Pharmaceutical Sciences, Wuhan University, 185 East Lake Road, Wuhan, 430071, PR China.
Wuhan University · CNHong Kong University of Science and Technology · HK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ascamycin (ACM) and dealanylascamycin (DACM) are nucleoside antibiotics elaborated by Streptomyces sp. JCM9888. The later shows broad spectrum inhibition activity to various gram-positive and gram-negative bacteria, eukaryotic Trypanosoma and is also toxic to mice, while ascamycin is active against very limited microorganisms, such as Xanthomonas. Both compounds share an unusual 5'-O-sulfonamide moiety which is attached to an adenosine nucleoside. In this paper, we first report on the 30 kb gene cluster (23 genes, acmA to acmW) involved in the biosynthesis of these two antibiotics and a biosynthetic assembly line was proposed. Of them, six genes (AcmABGKIW) are hypothetical genes involved in 5'-O-sulfonamide formation. Two flavin adenine dinucleotide (FAD)-dependent chlorinase genes acmX and acmY were characterized which are significantly remote from acmA-W and postulated to be required for adenine C2-halogenation. Notably gene disruption of acmE resulted in a mutant which could only produce dealanylascamycin but was blocked in its ability to biosynthesize ascamycin, revealing its key role of conversion of dealanylascamycin to ascamycin.

Indexed as

Genes, Bacterial2-ChloroadenosineAdenosineMolecular Sequence DataMultigene FamilyStreptomycesSulfonamides2-Chloroadenosine5'-sulfamoyl-2-chloroadenosineAdenosineascamycinSulfonamides

Identifiers

PMID25479601
PMCPMC4257720
OpenAlexW2060237560

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.