Car4^tm1Sly

The self-excising tACE-CRE-neo cassette replaced exons 1b, 2, 3, and 9 amino acids of exon 4. This sequence encodes all three active site His residues in the 146 amino acids of the protein that immediately follow the signal sequence. The resulting frameshift produced an early termination in exon 4. Absence of transcript was confirmed by RT-PCR of mutant brain, heart, kidney and muscle. Western blot analyses of the same tissues did not detect protein. (J:103742)