Evidence map›Paper›PMID 34082758›Full record

ArticleMicrobial cell factories2021

Superior production of heavy pamamycin derivatives using a bkdR deletion mutant of Streptomyces albus J1074/R2.

Lars Gläser, Martin Kuhl, Julian Stegmüller, Christian Rückert, Maksym Myronovskyi, Jörn Kalinowski, Andriy Luzhetskyy, Christoph Wittmann

Open access · goldAbstract read
In one paragraph

Article in Microbial cell factories, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
6.0field-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

14 citing papers in PubMed, 32 citations in OpenAlex.

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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

8 authors at 2 institutions in 1 country.

Lars GläserInstitute of Systems Biotechnology, Saarland University, Saarbrücken, Germany.
Martin KuhlInstitute of Systems Biotechnology, Saarland University, Saarbrücken, Germany.
Julian StegmüllerInstitute of Systems Biotechnology, Saarland University, Saarbrücken, Germany.
Christian RückertCenter for Biotechnology, Bielefeld University, Bielefeld, Germany.
Maksym MyronovskyiDepartment of Pharmacy, Pharmaceutical Biotechnology, Saarland University, Saarbrücken, Germany.
Jörn KalinowskiCenter for Biotechnology, Bielefeld University, Bielefeld, Germany.
Andriy LuzhetskyyDepartment of Pharmacy, Pharmaceutical Biotechnology, Saarland University, Saarbrücken, Germany.
Christoph WittmannInstitute of Systems Biotechnology, Saarland University, Saarbrücken, Germany. christoph.wittmann@uni-saarland.de.ORCID http://orcid.org/0000-0002-7952-985X
Saarland University · DEBielefeld University · DE

Funding

Bundesministerium für Bildung und Forschung 031B034ABundesministerium für Bildung und Forschung 031B034BBundesministerium für Bildung und Forschung 031B034CDeutsche Forschungsgemeinschaft INST 256/418-1
6 · The paper itself

Abstract

backgroundPamamycins are macrodiolides of polyketide origin which form a family of differently large homologues with molecular weights between 579 and 663. They offer promising biological activity against pathogenic fungi and gram-positive bacteria. Admittedly, production titers are very low, and pamamycins are typically formed as crude mixture of mainly smaller derivatives, leaving larger derivatives rather unexplored so far. Therefore, strategies that enable a more efficient production of pamamycins and provide increased fractions of the rare large derivatives are highly desired. Here we took a systems biology approach, integrating transcription profiling by RNA sequencing and intracellular metabolite analysis, to enhance pamamycin production in the heterologous host S. albus J1074/R2.

resultsSupplemented with L-valine, the recombinant producer S. albus J1074/R2 achieved a threefold increased pamamycin titer of 3.5 mg L

conclusionsOur findings open the door to provide rare heavy pamamycins at markedly increased efficiency and facilitate studies to assess their specific biological activities and explore this important polyketide further.

Indexed as

3-Methyl-2-Oxobutanoate Dehydrogenase (Lipoamide)Bacterial ProteinsBiosynthetic PathwaysGene Expression ProfilingGene Expression Regulation, BacterialGenes, BacterialIndustrial MicrobiologyMacrolidesMetabolomeMultigene FamilyMutationPolyketidesStreptomycesTranscription FactorsValine3-Methyl-2-Oxobutanoate Dehydrogenase (Lipoamide)Bacterial ProteinsMacrolidespamamycinPolyketidesTranscription FactorsValinebkdRCoA thioesterEthylmalonyl-CoAL-valineMalonyl-CoAMetabolomeMethylmalonyl CoAPolyketideTranscriptome

Identifiers

PMID34082758
PMCPMC8176718
OpenAlexW3165709949

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.