Table 1 Frequency of allele shifts in traditional MSI markers
|  |  |  | All shifts | ≥3bp shifts | ||||
|---|---|---|---|---|---|---|---|---|
STR ID | Panel | Motif | Frequency in MSI (N = 9) | Frequency in MSS (N = 37) | Accuracy | Frequency in MSI (N = 9) | Frequency in MSS (N = 37) | Accuracy |
NR-21 | Powerplex | A | 100% | 0% | 100% | 100% | 0% | 100% |
BAT26 | Bethesda, Powerplex | A | 100% | 19% | 84% | 100% | 0% | 100% |
BAT25 | Bethesda, Powerplex | T | 100% | 28% | 76% | 100% | 0% | 100% |
D17S250 | Bethesda | GT | 100% | 29% | 74% | 67% | 0% | 97% |
D5S346 | Bethesda | TG | 78% | 0% | 96% | 22% | 0% | 85% |
D2S123 | Bethesda | CA | 67% | 0% | 93% | 56% | 0% | 91% |
MSI-H with all Bethesda markersa | 100% | 19% | 85% | 100% | 0% | 100% | ||