Table 7.
Prevalence of the PIK3CA mutations in CRC samples.
| Samples | PIK3CA |
KRAS WT |
KRAS mutated |
|||
|---|---|---|---|---|---|---|
| Number | Percent | Number | Percent | Number | Percent | |
| All | 515 | 100 | 347 | 67.38 | 168 | 32.62 |
| WT | 448 | 86.99 | 309 | 60.00 | 139 | 26.99 |
| Mut | 67 | 13.01 | 38 | 7.38 | 29 | 5.63 |
| R88Q | 3 | 0.58 | 2 | 0.39 | 1 | 0.19 |
| N345K | 3 | 0.58 | 0 | 0.00 | 3 | 0.58 |
| C420R | 3 | 0.58 | 1 | 0.19 | 2 | 0.39 |
| Exon 9 | 48 | 9.32 | 32 | 6.21 | 16 | 3.11 |
| E542K | 26 | 5.05 | 18 | 3.50 | 8 | 1.55 |
| E545K | 14 | 2.72 | 8 | 1.55 | 6 | 1.17 |
| E545G | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 |
| Q546K | 5 | 0.97 | 3 | 0.58 | 2 | 0.39 |
| Q546L | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 |
| E542K/E545K | 2 | 0.39 | 2 | 0.39 | 0 | 0.00 |
| E542K/H1047R | 1 | 0.19 | 1 | 0.19 | 0 | 0.00 |
| Exon 20 | 10 | 1.94 | 3 | 0.58 | 7 | 1.36 |
| M1043I | 1 | 0.19 | 1 | 0.19 | 0 | 0.00 |
| H1047Y | 1 | 0.19 | 0 | 0.00 | 1 | 0.19 |
| H1047L | 3 | 0.58 | 0 | 0.00 | 3 | 0.58 |
| H1047R | 5 | 0.97 | 2 | 0.39 | 3 | 0.58 |