Abstract:e23197 Background: During the Belgian FIELT II clinical study, two non-small cell lung cancers among 41 were found to harbor a CRAF mutation. One of these mutations (P207S) was previously found in fibrosarcoma and characterized as not activating the ERK pathway at higher levels compared to the wild-type CRAF. The other mutation (P261A) has never been reported in cancer but found in Noonan syndrome. CRAF mutations can be oncogenic thereby activation of the ERK pathway. Serine 259 is a negative regulatory site … Show more
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