Detection of 7028 C-T SNP in the COX1 gene with the DSNP assay. PCR fragments of 69, 534, and 952 bp comprising 7028 T or 7028 C variants, and pT-Adv plasmids with 69-bp fragment insertions were used in SNP typing with a T variant-specific signal probe. “DSN+”, reaction with DSN; “DSN−”, control samples, no enzyme. ΔFm/ΔFp was defined as in Table 1. (A) The multiwell PCR plate was photographed with an Olympus SZX12 fluorescent stereomicroscope equipped with a green filter. (B) PCR strips with DSNP results for 69-bp fragments were photographed with a MultiImage Light Cabinet (Alpha Innotech) under UV light.