All Outputs (87)

Effect of antibiotic treatment on the formation of non-spore Clostridium difficile persister-like cells (2018)
Journal Article

Background: The spore is the virulence factor identified to be involved in the recurrence of the disease caused by Clostridium difficile. Objectives: To demonstrate that lethal antibiotic concentrations induce the appearance of C. difficile persister... Read More about Effect of antibiotic treatment on the formation of non-spore Clostridium difficile persister-like cells.

The butanol producing microbe Clostridium beijerinckii NCIMB 14988 manipulated using forward and reverse genetic tools (2018)
Journal Article

The solventogenic anaerobe Clostridium beijerinckii has potential for use in the sustainable bioconversion of plant-derived carbohydrates into solvents, such as butanol or acetone. However, relatively few strains have been extensively characterised e... Read More about The butanol producing microbe Clostridium beijerinckii NCIMB 14988 manipulated using forward and reverse genetic tools.

A transcription factor-based biosensor for detection of itaconic acid (2018)
Journal Article

Itaconic acid is an important platform chemical that can easily be incorporated into polymers and has the potential to replace petrochemical-based acrylic or methacrylic acid. A number of microorganisms have been developed for the biosynthesis of ita... Read More about A transcription factor-based biosensor for detection of itaconic acid.

Quantitative isotope-dilution high-resolution-mass-apectrometry analysis of multiple intracellular metabolites in Clostridium autoethanogenum with uniformly 13C-labeled standards derived from Spirulina (2018)
Journal Article

We have investigated the applicability of commercially available lyophilized spirulina (Arthrospira platensis), a microorganism uniformly labeled with 13C, as a readily accessible source of multiple 13C-labeled metabolites suitable as internal standa... Read More about Quantitative isotope-dilution high-resolution-mass-apectrometry analysis of multiple intracellular metabolites in Clostridium autoethanogenum with uniformly 13C-labeled standards derived from Spirulina.

Advances in metabolic engineering in the microbial production of fuels and chemicals from C1 gas (2018)
Journal Article

The future sustainable production of chemicals and fuels from non-petrochemical sources, while at the same time reducing greenhouse gas (GHG) emissions, represent two of society's greatest challenges. Microbial chassis able to grow on waste carbon mo... Read More about Advances in metabolic engineering in the microbial production of fuels and chemicals from C1 gas.

Upscaling Diffusion Through First-Order Volumetric Sinks: A Homogenization of Bacterial Nutrient Uptake (2018)
Journal Article

In mathematical models that include nutrient delivery to bacteria, it is prohibitively expensive to include a pointwise nutrient uptake within small bacterial regions over bioreactor length-scales, and so such models often impose an effective uptake... Read More about Upscaling Diffusion Through First-Order Volumetric Sinks: A Homogenization of Bacterial Nutrient Uptake.

Characterization of the impact of rpoB mutations on the in vitro and in vivo competitive fitness of Clostridium difficile and susceptibility to fidaxomicin (2017)
Journal Article

Objectives To establish the role of specific, non-synonymous SNPs in the RNA polymerase ? subunit (rpoB) gene in reducing the susceptibility of Clostridium difficile to fidaxomicin and to explore the potential in vivo significance of rpoB mutant str... Read More about Characterization of the impact of rpoB mutations on the in vitro and in vivo competitive fitness of Clostridium difficile and susceptibility to fidaxomicin.

13C-assisted metabolic flux analysis to investigate heterotrophic and mixotrophic metabolism in Cupriavidus necator H16 (2017)
Journal Article

Introduction. Cupriavidus necator H16 is a gram-negative bacterium, capable of lithoautotrophic growth by utilizing hydrogen as an energy source and fixing carbon dioxide (CO2) through Calvin-Benson-Bassham (CBB) cycle. The potential to utilize synth... Read More about 13C-assisted metabolic flux analysis to investigate heterotrophic and mixotrophic metabolism in Cupriavidus necator H16.

Applying asymptotic methods to synthetic biology: modelling the reaction kinetics of the mevalonate pathway (2017)
Journal Article

The mevalonate pathway is normally found in eukaryotes, and allows for the production of isoprenoids, a useful class of organic compounds. This pathway has been successfully introduced to Escherichia coli, enabling a biosynthetic production route for... Read More about Applying asymptotic methods to synthetic biology: modelling the reaction kinetics of the mevalonate pathway.

Multi-timescale analysis of a metabolic network in synthetic biology: a kinetic model for 3-hydroxypropionic acid production via beta-alanine (2017)
Journal Article

A biosustainable production route for 3-hydroxypropionic acid (3HP), an important platform chemical, would allow 3HP to be produced without using fossil fuels. We are interested in investigating a potential biochemical route to 3HP from pyruvate thro... Read More about Multi-timescale analysis of a metabolic network in synthetic biology: a kinetic model for 3-hydroxypropionic acid production via beta-alanine.

Recombinant expression and characterisation of the oxygen-sensitive 2-enoate reductase from Clostridium sporogenes (2017)
Journal Article

‘Ene’-reductases have attracted significant attention for the preparation of chemical intermediates and biologically active products. To date, research has been focussed primarily on Old Yellow Enzyme-like proteins, due to their ease of handling, whe... Read More about Recombinant expression and characterisation of the oxygen-sensitive 2-enoate reductase from Clostridium sporogenes.

Improving gene transfer in Clostridium pasteurianum through the isolation of rare hypertransformable variants (2017)
Journal Article

Effective microbial metabolic engineering is reliant on efficient gene transfer. Here we present a simple screening strategy that may be deployed to isolate rare, hypertransformable variants. The procedure was used to increase the frequency of transf... Read More about Improving gene transfer in Clostridium pasteurianum through the isolation of rare hypertransformable variants.

Characterisation of a 3-hydroxypropionic acid-inducible system from Pseudomonas putida for orthogonal gene expression control in Escherichia coli and Cupriavidus necator (2017)
Journal Article

3-hydroxypropionic acid (3-HP) is an important platform chemical used as a precursor for production of added-value compounds such as acrylic acid. Metabolically engineered yeast, Escherichia coli, cyanobacteria and other microorganisms have been deve... Read More about Characterisation of a 3-hydroxypropionic acid-inducible system from Pseudomonas putida for orthogonal gene expression control in Escherichia coli and Cupriavidus necator.

Microbial solvent formation revisited by comparative genome analysis (2017)
Journal Article

Background: Microbial formation of acetone, isopropanol, and butanol is largely restricted to bacteria belonging to the genus Clostridium. This ability has been industrially exploited over the last 100 years. The solvents are important feedstocks for... Read More about Microbial solvent formation revisited by comparative genome analysis.

Towards improved butanol production through targeted genetic modification of Clostridium pasteurianum (2017)
Journal Article

Declining fossil fuel reserves, coupled with environmental concerns over their continued extraction and exploitation have led to strenuous efforts to identify renewable routes to energy and fuels. One attractive option is to convert glycerol, a by-pr... Read More about Towards improved butanol production through targeted genetic modification of Clostridium pasteurianum.

Metabolic engineering of Clostridium autoethanogenum for selective alcohol production (2017)
Journal Article

Gas fermentation using acetogenic bacteria such as Clostridium autoethanogenum offers an attractive route for production of fuel ethanol from industrial waste gases. Acetate reduction to acetaldehyde and further to ethanol via an aldehyde: ferredoxin... Read More about Metabolic engineering of Clostridium autoethanogenum for selective alcohol production.

Development of Clostridium difficile R20291?PaLoc model strains and in vitro methodologies reveals CdtR is required for the production of CDT to cytotoxic levels (2017)
Journal Article

Assessing the regulation of Clostridium difficile transferase (CDT), is complicated by the presence of a Pathogenicity locus (PaLoc) which encodes Toxins A and B. Here we developed R20291?PaLoc model strains and cell-based assays to quantify CDT-medi... Read More about Development of Clostridium difficile R20291?PaLoc model strains and in vitro methodologies reveals CdtR is required for the production of CDT to cytotoxic levels.

What's a SNP between friends: The influence of single nucleotide polymorphisms on virulence and phenotypes of Clostridium difficile strain 630 and derivatives (2016)
Journal Article

Clostridium difficile is a major cause of antibiotic induced diarrhoea worldwide, responsible for significant annual mortalities and represents a considerable economic burden on healthcare systems. The two main C. difficile virulence factors are toxi... Read More about What's a SNP between friends: The influence of single nucleotide polymorphisms on virulence and phenotypes of Clostridium difficile strain 630 and derivatives.

Enhanced solvent production by metabolic engineering of a twin-clostridial consortium (2016)
Journal Article

Coinfection and Emergence of Rifamycin Resistance during a Recurrent Clostridium difficile Infection (2016)
Journal Article

Clostridium difficile (Peptoclostridium difficile) is a common health care-associated infection with a disproportionately high incidence in elderly patients. Disease symptoms range from mild diarrhea to life-threatening pseudomembranous colitis. Arou... Read More about Coinfection and Emergence of Rifamycin Resistance during a Recurrent Clostridium difficile Infection.