Cancer is a disease that occurs when the cell cycle is no longer regulated.
Another critical protein in regulating the cell cycle is the tumor suppressor protein p53 .
Cancer is a disease that often results when tumor suppresor proteins, like p53, stop functioning.
One tumor suppressor protein which often results in cancer when it stops functioning is:

(1) gene
(2) p53
(3) tumors
(4) HIV
(5) enzyme
(6) tRNA
(7) DNA
(8) TRH