Evidence map›Paper›PMID 23621425›Full record

ArticleJournal of the American Chemical Society2013

An efficient system for heterologous expression of secondary metabolite genes in Aspergillus nidulans.

Yi-Ming Chiang, C Elizabeth Oakley, Manmeet Ahuja, Ruth Entwistle, Aric Schultz, Shu-Lin Chang, Calvin T Sung, Clay C C Wang, Berl R Oakley

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed
16.2field-weighted citation impact, top 1% 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

97 citing papers in PubMed, 248 citations in OpenAlex.

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  19. Identification of theJournal of fungi (Basel, Switzerland) · 2024
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37 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

9 authors at 2 institutions in 1 country.

Yi-Ming ChiangDepartment of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, 1985 Zonal Avenue, Los Angeles, California 90089, USA.
C Elizabeth Oakley
Manmeet Ahuja
Ruth Entwistle
Aric Schultz
Shu-Lin Chang
Calvin T Sung
Clay C C Wang
Berl R Oakley
University of Kansas · USUniversity of Southern California · US

Funding

Molecular Genetic Mining of the Aspergillus Nidulans Secondary MetabolomeP01GM084077 · NIGMS · UNIVERSITY OF KANSAS LAWRENCE · PI OAKLEY, BERL RAY · 2008 to 2012
$5.4M
NIGMS NIH HHS P01 GM084077NIGMS NIH HHS P01-GM084077
6 · The paper itself

Abstract

Fungal secondary metabolites (SMs) are an important source of medically valuable compounds. Genome projects have revealed that fungi have many SM biosynthetic gene clusters that are not normally expressed. To access these potentially valuable, cryptic clusters, we have developed a heterologous expression system in Aspergillus nidulans . We have developed an efficient system for amplifying genes from a target fungus, placing them under control of a regulatable promoter, transferring them into A. nidulans , and expressing them. We have validated this system by expressing nonreducing polyketide synthases of Aspergillus terreus and additional genes required for compound production and release. We have obtained compound production and release from six of these nonreducing polyketide synthases and have identified the products. To demonstrate that the procedure allows transfer and expression of entire secondary metabolite biosynthetic pathways, we have expressed all the genes of a silent A. terreus cluster and demonstrate that it produces asperfuranone. Further, by expressing the genes of this pathway in various combinations, we have clarified the asperfuranone biosynthetic pathway. We have also developed procedures for deleting entire A. nidulans SM clusters. This allows us to remove clusters that might interfere with analyses of heterologously expressed genes and to eliminate unwanted toxins.

Indexed as

Aspergillus nidulansBenzofuransMolecular ConformationPolyketide SynthasesasperfuranoneBenzofuransPolyketide Synthases

Identifiers

PMID23621425
PMCPMC3697937
OpenAlexW2077664682

What OpenQuestion holds

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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.