In Vivo Assembly and Expression of DNA Containing Non-canonical Bases in the Yeast Saccharomyces cerevisiae. 2022

Hoai Nguyen, and Mikhail Abramov, and Jef Rozenski, and Elena Eremeeva, and Piet Herdewijn
KU Leuven, Rega Institute for Medical Research, Medicinal Chemistry, Herestraat 49, Box 1041, 3000, Leuven, Belgium.

Chemically modified nucleic acids are of utmost interest in synthetic biology for creating a regulable and sophisticated synthetic system with tailor-made properties. Implanting chemically modified nucleic acids in microorganisms might serve biotechnological applications, while using them in human cells might lead to new advanced medicines. Previously, we reported that a fully modified DNA sequence (called DZA) composed of the four base-modified nucleotides - 7-deaza-adenine, 5-chlorouracil, 7-deaza-guanine and 5-fluorocytosine - could function as a genetic template in prokaryotic cells, Escherichia coli. Here, we report the synthesis of long, partially, or fully modified DZA fragments that encode the yeast-enhanced red fluorescent protein (yEmRFP). The DZA sequences were directly introduced in the genome of the eukaryotic cells, Saccharomyces cerevisiae, via the yeast natural homologous recombination machinery. The simple and straightforward DZA cloning strategy reported here might be of interest to scientists working in the field of xenobiology in yeast.

UI MeSH Term Description Entries
D009696 Nucleic Acids High molecular weight polymers containing a mixture of purine and pyrimidine nucleotides chained together by ribose or deoxyribose linkages. Nucleic Acid,Acid, Nucleic,Acids, Nucleic
D003001 Cloning, Molecular The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells. Molecular Cloning
D004247 DNA A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine). DNA, Double-Stranded,Deoxyribonucleic Acid,ds-DNA,DNA, Double Stranded,Double-Stranded DNA,ds DNA
D004926 Escherichia coli A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc. Alkalescens-Dispar Group,Bacillus coli,Bacterium coli,Bacterium coli commune,Diffusely Adherent Escherichia coli,E coli,EAggEC,Enteroaggregative Escherichia coli,Enterococcus coli,Diffusely Adherent E. coli,Enteroaggregative E. coli,Enteroinvasive E. coli,Enteroinvasive Escherichia coli
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012441 Saccharomyces cerevisiae A species of the genus SACCHAROMYCES, family Saccharomycetaceae, order Saccharomycetales, known as "baker's" or "brewer's" yeast. The dried form is used as a dietary supplement. Baker's Yeast,Brewer's Yeast,Candida robusta,S. cerevisiae,Saccharomyces capensis,Saccharomyces italicus,Saccharomyces oviformis,Saccharomyces uvarum var. melibiosus,Yeast, Baker's,Yeast, Brewer's,Baker Yeast,S cerevisiae,Baker's Yeasts,Yeast, Baker
D058615 Synthetic Biology A field of biological research combining engineering in the formulation, design, and building (synthesis) of novel biological structures, functions, and systems. Biologies, Synthetic,Biology, Synthetic,Synthetic Biologies

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