Galnt1^tm1Jxm

A loxP site was placed downstream of an exon and a floxed neomycin-thymidine kinase expression cassette was inserted into the upstream intron. Transient expression from an injected Cre plasmid removed the neomycin-thymidine cassette, but left the floxed exon, prior to production of chimeric mice. (J:119128)