A 157 kb deletion on mouse chromosome 11 stretching from, but not including, Crhr1 to Kansl1 is replaced by a syntenic 190 kb region from human chromosome 17 (HSA17). In this transchromosomal (Tc) strain, the mouse Sppl2c (signal peptide peptidase 2C) and Mapt (microtubule-associated protein tau) genes are replaced by human SPPL2C and MAPT genes and a loxN-flanked hygromycin cassette. Cre-mediated recombination removed the hygromycin cassette. (J:101977)