Evidence map›Paper›PMID 21173184›Full record

ArticleAntimicrobial agents and chemotherapy2011

Characterization of the biosynthesis gene cluster for the pyrrole polyether antibiotic calcimycin (A23187) in Streptomyces chartreusis NRRL 3882.

Qiulin Wu, Jingdan Liang, Shuangjun Lin, Xiufen Zhou, Linquan Bai, Zixin Deng, Zhijun Wang

Abstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

30 citing papers in PubMed, 73 citations in OpenAlex.

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  14. Influence of Amino Acid Feeding on Production of Calcimycin and Analogs inInternational journal of environmental research and public health · 2021
    Article
  15. Construction of an Alternative NADAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2021
    Article
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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

7 authors at 1 institution in 1 country.

Qiulin WuLaboratory of Microbial Metabolism, School of Life Science & Biotechnology, Shanghai Jiaotong University, Shanghai 200030, China.
Jingdan Liang
Shuangjun Lin
Xiufen Zhou
Linquan Bai
Zixin Deng
Zhijun Wang
Shanghai Jiao Tong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The pyrrole polyether antibiotic calcimycin (A23187) is a rare ionophore that is specific for divalent cations. It is widely used as a biochemical and pharmacological tool because of its multiple, unique biological effects. Here we report on the cloning, sequencing, and mutational analysis of the 64-kb biosynthetic gene cluster from Streptomyces chartreusis NRRL 3882. Gene replacements confirmed the identity of the gene cluster, and in silico analysis of the DNA sequence revealed 27 potential genes, including 3 genes for the biosynthesis of the α-ketopyrrole moiety, 5 genes that encode modular type I polyketide synthases for the biosynthesis of the spiroketal ring, 4 genes for the biosynthesis of 3-hydroxyanthranilic acid, an N-methyltransferase tailoring gene, a resistance gene, a type II thioesterase gene, 3 regulatory genes, 4 genes with other functions, and 5 genes of unknown function. We propose a pathway for the biosynthesis of calcimycin and assign the genes to the biosynthesis steps. Our findings set the stage for producing much desired calcimycin derivatives using genetic modification instead of chemical synthesis.

Indexed as

Amino Acid SequenceAnti-Bacterial AgentsBacterial ProteinsCalcimycinMolecular Sequence DataMolecular StructureSequence Homology, Amino AcidStreptomycesAnti-Bacterial AgentsBacterial ProteinsCalcimycin

Identifiers

PMID21173184
PMCPMC3067094
OpenAlexW2100875203

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.