The phosphorylation state of T14 and Y15 is controlled by a dual-specificity protein kinase known as Wee1 and a pair of dual-specificity phosphatases, Cdc25B and Cdc25C (Threonine 14 is not phosphorylated in S. pombe CDK1)
#Section 3: Genetics, Cellular and Molecular Biology#Steps in cell cycle, regulation and control of cell cycle#Part B Pointers
