St14^Gt(XM184)Byg

Insertion of a genetrap vector placed into intron 1 a pGT0pfs construct containing the intron from the engrailed 2 gene upstream of the gene encoding beta-galactosidase/neomycin-phosphotransferase fusion protein. This allele expresses 100-fold reduction in mRNA levels and is a hypomorphic allele. (J:108567)