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My lab is looking to use Synthetic Biology techniques to develop microbial technologies that can act as a buildings metabolism - processing waste and generating energy and other high value products. We will be looking to develop tool boxes that allow us to take non model bacteria and use them as cell factories. I am also interested in the enzymes we will need to use to break down waste and produce high value products.
A novel transketolase has been reconstituted from two separate polypeptide chains encoded by a ‘split-gene’ identified in the genome of the hyperthermophilic bacterium, Carboxydothermus hydrogenoformans. The reconstituted active α2β2 tetrameric enzyme has been biochemically characterized and its activity has been determined using a range of aldehyd...
Science is key to developing sustainable products and solutions. But scientists also need to work more with governments, industry and society to help implement those solutions.
Well-characterised promoter collections for synthetic biology applications are not always available in industrially relevant hosts. We developed a broadly applicable method for promoter identification in atypical microbial hosts that requires no a priori understanding of cis-regulatory element structure. This novel approach combines bioinformatic f...
[This corrects the article DOI: 10.3389/fbioe.2019.00007.].
Two new thermophilic branched chain amino acid transaminases have been identified within the genomes of different hyper-thermophilic archaea, Geoglobus acetivorans, and Archaeoglobus fulgidus. These enzymes belong to the class IV of transaminases as defined by their structural fold. The enzymes have been cloned and over-expressed in Escherichia col...
Thermoanaerobacter ethanolicus JW 200 has been identified as a potential sustainable biofuel producer due to its ability to readily ferment carbohydrates to ethanol. A hybrid sequencing approach, combining Oxford Nanopore and Illumina DNA sequence reads, was applied to produce a single contiguous genome sequence of 2,911,280 bp.
Plant polyphenols are known to have varying antimicrobial potencies, including direct antibacterial activity, synergism with antibiotics and suppression of bacterial virulence. We performed the in vitro oligomerization of resveratrol catalyzed by soybean peroxidase, and the two isomers (resveratrol-trans-dihydrodimer and pallidol) produced were tes...
Carbonic anhydrase enzymes catalyse the reversible hydration of carbon dioxide to bicarbonate. A thermophilic Thermovibrio ammonificans α-carbonic anhydrase (TaCA) has been expressed in Escherichia coli and structurally and biochemically characterized. The crystal structure of TaCA has been determined in its native form and in two complexes with bo...
Considerable interest has been generated in the mechanism which nature utilises to increase the stability of enzymes found in thermophilic and hyperthermophilic species. This has been the subject of many reviews, and our understanding has been enhanced by the increasing number of high-resolution thermostable enzyme structures that have been determi...