The following cassette was inserted at chr11:112544204-112544205 (GRCm39) using homologous recombination: a Sleeping Beauty transposon inverted repeat, loxP site, human beta-globin HBB minimal promoter, the lacZ beta-galactosidase reporter gene, SV40 poly(A) signal sequence, and a Sleeping Beauty transposon direct repeat. (J:235642)