Evidence map›Paper›PMID 29371699›Full record

ArticleScientific reports2018

Identification of a biosynthetic gene cluster for the polyene macrolactam sceliphrolactam in a Streptomyces strain isolated from mangrove sediment.

Zhen Jie Low, Li Mei Pang, Yichen Ding, Qing Wei Cheang, Kim Le Mai Hoang, Hoa Thi Tran, Jinming Li, Xue-Wei Liu, Yoganathan Kanagasundaram, Liang Yang and 1 more

Abstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

24 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. CRISPR-aided genome engineering for secondary metabolite biosynthesis in Streptomyces.Journal of industrial microbiology & biotechnology · 2024
    Review
  10. Review
  11. Article
  12. Future trends in synthetic biology in Asia.Advanced genetics (Hoboken, N.J.) · 2021
    Article
  13. Review
  14. Article
  15. Article
  16. Genome Mining Revealed a High Biosynthetic Potential for AntifungalInternational journal of molecular sciences · 2020
    Article
  17. Article
  18. Review
  19. Review
  20. Genome Sequencing ofMarine drugs · 2019
    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

11 authors.

Zhen Jie LowSchool of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore.
Li Mei PangSchool of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore.
Yichen DingInterdisciplinary Graduate School, Nanyang Technological University, Singapore, Singapore.
Qing Wei CheangSchool of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore.
Kim Le Mai HoangSchool of Mathematics and Physics, Nanyang Technological University, Singapore, 637551, Singapore.
Hoa Thi TranSchool of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore.
Jinming LiDepartment of Bioinformatics, School of Basic Medical Sciences, Southern Medical University, 510515, Guangzhou, China.
Xue-Wei LiuSchool of Mathematics and Physics, Nanyang Technological University, Singapore, 637551, Singapore.
Yoganathan KanagasundaramBioinformatics Institute, Singapore, 138671, Singapore.
Liang YangSchool of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore.ORCID http://orcid.org/0000-0002-2362-0128
Zhao-Xun LiangSchool of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore. zxliang@ntu.edu.sg.ORCID http://orcid.org/0000-0002-3128-1330

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Streptomyces are a genus of Actinobacteria capable of producing structurally diverse natural products. Here we report the isolation and characterization of a biosynthetically talented Streptomyces (Streptomyces sp. SD85) from tropical mangrove sediments. Whole-genome sequencing revealed that Streptomyces sp. SD85 harbors at least 52 biosynthetic gene clusters (BGCs), which constitute 21.2% of the 8.6-Mb genome. When cultivated under lab conditions, Streptomyces sp. SD85 produces sceliphrolactam, a 26-membered polyene macrolactam with unknown biosynthetic origin. Genome mining yielded a putative sceliphrolactam BGC (sce) that encodes a type I modular polyketide synthase (PKS) system, several β-amino acid starter biosynthetic enzymes, transporters, and transcriptional regulators. Using the CRISPR/Cas9-based gene knockout method, we demonstrated that the sce BGC is essential for sceliphrolactam biosynthesis. Unexpectedly, the PKS system encoded by sce is short of one module required for assembling the 26-membered macrolactam skeleton according to the collinearity rule. With experimental data disfavoring the involvement of a trans-PKS module, the biosynthesis of sceliphrolactam seems to be best rationalized by invoking a mechanism whereby the PKS system employs an iterative module to catalyze two successive chain extensions with different outcomes. The potential violation of the collinearity rule makes the mechanism distinct from those of other polyene macrolactams.

Indexed as

Multigene FamilyBiological ProductsBiosynthetic PathwaysComputational BiologyEnvironmental MicrobiologyGene Knockout TechniquesLactams, MacrocyclicStreptomycesTropical ClimateWhole Genome SequencingBiological ProductsLactams, Macrocyclicsceliphrolactam

Identifiers

PMID29371699
PMCPMC5785472

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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.