Random insertional mutagenesis is an efficient tool for studying molecular mechanisms of many genetically determined processes. An improved variant of this method is REMI (Restriction Enzyme Mediated Integration) mutagenesis. In this method, the insertion cassette is introduced into the recipient cell together with restriction endonuclease. As a result, the REMI cassette insertion occurs in sites recognized by the restriction enzyme. The use of restriction endonucleases enhances transformation rate and provides cassette insertion in virtually any locus. A mutation is tagged by the insertion cassette, which can be identified by isolating the REMI cassette together with the flanking genomic DNA regions. The review describes general requirements to REMI. The mechanisms of REMI mutagenesis are surveyed with special reference to yeast Saccharomyces cerevisiae. Special attention is given to the development and use of REMI for other lower eukaryotes (yeasts and mould fungi). Drawbacks of the method and perspectives of its use are discussed.
Russian Journal of Genetics – Springer Journals
Published: Aug 30, 2007
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