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PIK3CA mutations in EN and SK
| PIK3CA mutation | Base substitution | Amino acid substitution | n (EN = 33) | n (SK = 62) | Concomitant FGFR3 mutation |
|---|---|---|---|---|---|
| E542K | c.1624G > A | Glu > Lys | — | 7 | 3 (R248C, K652E) |
| E545K | c.1633G > A | Glu > Lys | — | 2 | — |
| E545G | c.1634A > G | Glu > Gly | 9 | — | 2 (R248C) |
| H1047R | c.3140A > G | His > Arg | — | 1 | — |
