Igs2^{tm2(ACTB-tdTomato,-EGFP)Luo}

The TG MADM targeting construct was designed with a CMV enhancer/chicken beta-actin core promoter (pCA), the N-terminal portion of a red fluorescent protein (tdTomato; aa 1-3), a beta-globin intronic sequence containing an frt site and loxP-flanked neomycin resistance gene, the C-terminal portion of a mutant enhanced green fluorescent protein (mut4-EGFP; aa 274-724), and an SV40 T-antigen poly(A) signal. This entire TG MADM construct was inserted into the "Hipp11" locus on chromosome 11 (cytoband A1 at ~3cM between the Eif4enif1 and Drg1 loci). (J:166047)