title: Site-directed integration of transgenes: transposons revisited using DNA-binding-domain technologies.
abstract: In the last 20 years, tools derived from DNA transposons have made major contributions to genetic studies from gene delivery to gene discovery. Various complementary and fairly ubiquitous DNA vehicles have been developed. Although many transposons are efficient DNA vehicles, they appear to have limited ability to target specific sequences, since all that is required at the integration locus is the presence of a short 2- to 4-bp sequence. Consequently, insertions mediated by transposon-based vectors occur somewhat randomly. In the past 5 years, strategies have emerged to enhance the site-specificity of transposon-based vectors, and to avoid random integrations. The first proposes that new target site specificity could be grafted onto a transposase by adding a new DNA-binding domain. Alternative strategies consist of indirectly targeting either the transposase or the transposon to a chosen genomic locus. The most important information available about each strategy are presented, and limitations and future prospects are discussed.
authors: Université François Rabelais de Tours, GICC, 37200 Tours, France.
authors: Marie-Véronique
authors: MV
authors: Demattei
authors: Xavier
authors: X
authors: Thomas
authors: Elodie
authors: E
authors: Carnus
authors: Corinne
authors: C
authors: Augé-Gouillou
authors: Sylvaine
authors: S
authors: Renault
mesh_terms: D000818:Animals; D004247:DNA / Q000235:genetics*; D004251:DNA Transposable Elements; D004331:Drosophila melanogaster; D005821:Genetic Techniques; D005822:Genetic Vectors; D006367:HeLa Cells; D006801:Humans; D008957:Models, Genetic; D010957:Plasmids / Q000378:metabolism; D011485:Protein Binding; D017434:Protein Structure, Tertiary; D018626:Retroelements; D012441:Saccharomyces cerevisiae; D019076:Transgenes / Q000235:genetics*; D019895:Transposases / Q000235:genetics*
chemical_list: D004251:DNA Transposable Elements; D018626:Retroelements; D004247:DNA; D019895:Transposases