MCR1 is a gene found in yeast. It is used to understand cell cycle checkpoints.[1] Researchers are working to find a way to use this gene to create anti-cancer drugs.[1]
The most common function is found during the cell cycle when mutations occur because it becomes activated without phosphorylation and turns on Cds1.[2] It also works with Cdk1 to get rid of the mutations that occur. If MCR 1 is not present in the cell these check points do not work properly.[1]