tumor suppressor gene

https://doi.org/10.1351/goldbook.16174
Gene that serves to protect cells from entering a cancerous state.
Note: According to Knudson’s "two-hit" hypothesis, both alleles of a particular tumor suppressor gene must acquire a mutation before the cell will enter a transformed state.
Source:
PAC, 2007, 79, 1153. (Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)) on page 1330 [Terms] [Paper]