Evidence map›Paper›PMID 10518520›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1999

A multiplasmid approach to preparing large libraries of polyketides.

Q Xue, G Ashley, C R Hutchinson, D V Santi

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
6.8field-weighted citation impact, top 3% 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

35 citing papers in PubMed, 148 citations in OpenAlex.

  1. Article
  2. 3 Biotech · 2021
    Review
  3. Article
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  6. Article
  7. Article
  8. Discovery of the leinamycin family of natural products by mining actinobacterial genomes.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  9. Article
  10. Article
  11. Review
  12. Article
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  14. Importance of microbial natural products and the need to revitalize their discovery.Journal of industrial microbiology & biotechnology · 2014
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Dissecting complex polyketide biosynthesis.Computational and structural biotechnology journal · 2012
    Review
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.

Q XueKosan Biosciences, 3832 Bay Center Place, Hayward, CA 94545, USA.
G Ashley
C R Hutchinson
D V Santi

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A three-plasmid system for heterologous expression of 6-deoxyerythronolide B synthase (DEBS) has been developed to facilitate combinatorial biosynthesis of polyketides made by type I modular polyketide synthases (PKSs). The eryA PKS genes encoding the three DEBS subunits were individually cloned into three compatible Streptomyces vectors carrying mutually selectable antibiotic resistance markers. A strain of Streptomyces lividans transformed with all three plasmids produced 6-deoxyerythronolide B at a level similar to that of a strain transformed with a single plasmid containing all three genes. The utility of this system in combinatorial biosynthesis was demonstrated through production of a library of modified polyketide macrolactones by using versions of each plasmid constructed to contain defined mutations. Combinations of these vector sets were introduced into S. lividans, resulting in strains producing a wide range of 6-deoxyerythronolide B analogs. This method can be extended to any modular PKS and has the potential to produce thousands of novel natural products, including ones derived from further modification of the PKS products by tailoring enzymes.

Indexed as

Combinatorial Chemistry TechniquesPeptide LibraryAnti-Bacterial AgentsDrug Resistance, MicrobialErythromycinGenotypeModels, ChemicalMultienzyme ComplexesMutagenesis, InsertionalPlasmidsPolyenesRecombinant Fusion ProteinsRNA, MessengerStreptomyces6-deoxyerythronolide BAnti-Bacterial AgentsErythromycinMultienzyme ComplexesPeptide LibraryPolyenesRecombinant Fusion ProteinsRNA, Messenger

Identifiers

PMID10518520
PMCPMC18356
OpenAlexW2077223124

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.