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Efficient Cre-lox linearisation of BACs: applications to physical mapping and generation of transgenic animals
L J Mullins1, N Kotelevtseva, A C Boyd
1Centre for Genome Research, University of Edinburgh, King's Buildings, West Mains Road, Edinburgh EH9 3JQ, UK. linda.mullins@ed.ac.uk
Nucleic Acids Research
|June 15, 1997
Abstract:
Due to the size of BAC, PAC and P1 clones, it is often difficult to construct detailed restriction maps, with large number of restriction fragments leading to ambiguity of mapping data. We report the use of Cre recombinase to linearise and asymmetrically introduce label at the unique loxP site of large loxP-containing clones. Subsequent partial digestion allows the direct ordering of restriction fragments. Additionally, BAC DNA linearised using the Cre-lox system has been used successfully to generate transgenic animals.