ArticleExtremophiles : life under extreme conditions2020
Integration of large heterologous DNA fragments into the genome of Thermococcus kodakarensis.
Article in Extremophiles : life under extreme conditions, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed, 2 citations in OpenAlex.
- Synthetic Genomics From a Yeast Perspective.Frontiers in bioengineering and biotechnology · 2022Review
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5 authors at 2 institutions in 1 country.
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Abstract
In this study, a transformation system enabling large-scale gene recombination was developed for the hyperthermophilic archaeon Thermococcus kodakarensis. Using the uracil auxotroph T. kodakarensis KU216 (∆pyrF) as a parent strain, we constructed multiple host strains harboring two 1-kbp DNA regions from the genomes of either the hyperthermophilic archaeon Pyrococcus furiosus or Methanocaldococcus jannaschii. The two regions were selected so that the regions between them on the respective genomes would include pyrF genes, which can potentially be used for selection. Transformation using these host strains and genomic DNA from P. furiosus or M. jannaschii were carried out. Transformants with exogenous pyrF were obtained only using host strains with regions from P. furiosus, and only when the distances between the two regions were relatively short (2-5 kbp) on the P. furiosus genome. To insert longer DNA fragments, we examined the possibilities of using P. furiosus cells to provide intact genomic DNA. A cell pellet of P. furiosus was overlaid with that of T. kodakarensis so that cells were in direct contact. As a result, we were able to isolate T. kodakarensis strains harboring DNA fragments from P. furiosus with lengths of up to 75 kbp in a single transformation step.
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