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Nucleic Acids Res. May 1, 1999; 27(9): 1966–1969.
PMCID: PMC148408

The chicken HPRT gene: a counter selectable marker for the DT40 cell line.


We describe the cloning, characterisation and chromosomal mapping of the chicken hprt gene together with the construction of two counter selectable hprt-/- DT40 derived cell lines. One of these cell lines contains a stably integrated gene encoding a conditionally active cre recombinase and thus allows efficient manipulation of targeted loci by site-specific recombination. These cell lines will enhance the utility of the hyper-recombinogenic DT40 cell line as a system for the genetic analysis of cell autonomous functions in vertebrates and as a tool for mammalian chromosome engineering.

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