To access the data, click or select the words “Appendix 4.” All exons from both genes were amplified and sequenced from a Boxer, two unaffected Basenjis, one PRA affected Basenji and its unaffected sibling. A. Only one exonic SNP was identified in KCNJ13; this was not in association with the Basenji PRA phenotype. B. Ten exonic SNPs were identified in SAG. Two (Nos.1 and 2) were in the 5′ UTR of exons 1 and 2, respectively; 5 (Nos. 3–7) were in exonic coding sequence but each one was a synonymous third-base codon change; and two (Nos. Nine and 10) were in the 3′UTR. SNP No. 8 (in red), a T>C transition at position 47,845,680 changes the normal stop codon to code for arginine, and was thus identified as a candidate for the causative mutation. In bold are coding sequence SNPs.