Transgene re-expression <i>in vivo</i>.

<p>Mice of the indicated genotypes were treated <i>i.p.</i> with 1 mg IPTG and levels of Venus⁺ cells in T-, B- and myeloid subsets in the peripheral blood were quantified by FACS analysis following the indicated times. Results of three independent experiments and 3 (VLV and LacI) or 6 (VLV/LacI) animals/genotype are represented as box plots. Box length equals interquartile range. Circles represent minimal and maximal values; *p<0.001; #p<0.05. F2 generation offspring of VLV founder A3 were crossed with LacI mice. Single-, double-, and non-transgenic littermates were used for analysis.