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NCI Dictionary of Cancer Terms


PTEN tyrosine phosphatase  listen  (…TY-ruh-seen FOS-fuh-tays)

  A protein that helps control many cell functions, including cell division and cell death. Mutations (changes) in the gene that makes PTEN tyrosine phosphatase are found in many types of cancer and other diseases. It is a type of tumor suppressor protein. Also called PTEN.