Thanks Igor,
Unfortunately, I have already check my mutations of interest in COSMIC and there is to few data to allow comparison! (in the case of my sets of mutations...but for others amino acid position in my gene, there is a lot of data ..)
That's life!
But now I am convinced that COSMICS is the main database for this type of query, (completed with a checking in ICGC and TCGA).
Another question, are there a curated database of mutation in cancer induced by a specific type of treatment/ oncologic drugs?