FIGURE 1.
Gene structures of cat Tas1r3 and dog Tas1r3 (A), and cat Tas1r2 and dog Tas1r2 (B). The exons are shown in black (size in bp). Location (bp) refers to the position within each exon. Intron sizes shown in the figure are not proportionally scaled in (A) or (B) because of the large size of the Tas1r2 introns. Under each dog exon is the percentage of similarity between that exon and its cat counterpart at the nucleotide level (B). The exons for cat Tas1r2 refer to parts corresponding to dog exons. Asterisks indicate the position of microdeletion in exon 3 as well as the stop codon positions in exons 4 and 6 of cat Tas1r2. The accession for dog Tas1r3 is AY916759, and for dog Tas1r2 is AY916758.