Il4^tm1Gru

A modified version of exon 4 of the gene was inserted between the last codon and the translational stop site of the gene. This modified version of exon 4 contained a transmembrane anchor. In addition, a neomycin resistance cassette was inserted 150 nucleotides downstream of the polyadenylation signal of the gene. These modifications allowed production of mice that express a membrane-bound form of the protein. (J:53107)