Cited by 80Bacterial Genetics and BiotechnologyMicrobial Metabolic Engineering and BioproductionGene Regulatory Network Analysis

A Rhamnose-Inducible System for Precise and Temporal Control of Gene Expression in Cyanobacteria

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Kelly, Ciarán L., Taylor, George M., Hitchcock, Andrew, Torres-Méndez, Antonio, Heap, John T.·2018·ACS Synthetic Biology

Published version of a preprint

Abstract

Cyanobacteria are important for fundamental studies of photosynthesis and have great biotechnological potential. In order to better study and fully exploit these organisms, the limited repertoire of genetic tools and parts must be expanded. A small number of inducible promoters have been used in cyanobacteria, allowing dynamic external control of gene expression through the addition of specific inducer molecules. However, the inducible promoters used to date suffer from various drawbacks including toxicity of inducers, leaky expression in the absence of inducer and inducer photolability, the latter being particularly relevant to cyanobacteria, which, as photoautotrophs, are grown under light. Here we introduce the rhamnose-inducible rhaBAD promoter of Escherichia coli into the model freshwater cyanobacterium Synechocystis sp. PCC 6803 and demonstrate it has superior properties to previously reported cyanobacterial inducible promoter systems, such as a non-toxic, photostable, non-metabolizable inducer, a linear response to inducer concentration and crucially no basal transcription in the absence of inducer.

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Authors
Kelly, C. L., Taylor, G. M., Hitchcock, A., Torres-Méndez, A., & Heap, J. T.
Affiliations
  • Imperial College London , , South Kensington Campus , , ,
  • Imperial College London (GB)
Corresponding author
Heap, John T.
Venue
ACS Synthetic Biology
Published
2018-03-15
Volume
7
Issue
4
Pages
1056-1066
ISSN
2161-5063 (ISSN-L)
OpenAlex
W2773104035
Cited by
80
References
77
Citations by year
2026: 6 · 2025: 11 · 2024: 14 · 2023: 9 · 2022: 11 · 2021: 10 · 2020: 8 · 2019: 10 · 2018: 1
FWCI
4.44
Type
journal article
Language
en
Open access
Locations
  • ACS Synthetic Biology (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nd)
  • PubMed (publishedVersion)
  • White Rose Research Online (University of Leeds, The University of Sheffield, University of York) (acceptedVersion)
  • Northumbria Research Link (Northumbria University) (acceptedVersion)
  • Spiral (Imperial College London) (submittedVersion, other-oa)
Funders
Biotechnology and Biological Sciences Research Council (BB/M011321/1)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene Regulatory Network Analysis
Keywords
Synechocystis sp. PCC 6803, cyanobacteria, inducible promoters, gene expression regulation, photostability, leaky expression, synthetic biology tools
MeSH terms
Microorganisms, Genetically-Modified, Binding Sites, Escherichia coli, Light, Plasmids, Promoter Regions, Genetic, Rhamnose, DNA-Directed RNA Polymerases, Sigma Factor, Trans-Activators, Gene Expression Regulation, Bacterial, Genes, Reporter, Escherichia coli Proteins, Synechocystis

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