PIK3CA Exon 9 Mutation

**Semantic type:** Cell or Molecular Dysfunction

**Definition:** A change in the nucleotide sequence of exon 9 of the PIK3CA gene.

**Synonyms:** - PI3K-Alpha Exon 9 Mutation - PI3KCA Exon 9 Mutation - Phosphatidylinositol-4,5-Bisphosphate 3-Kinase Catalytic Subunit Alpha Exon 9 Mutation - p110-alpha Exon 9 Mutation