Ime2p and Cdc28p: co-pilots driving meiotic development.
Meiosis can be considered an elaboration of the cell division cycle in the sense that meiosis combines cell-cycle processes with programs specific to meiosis. Each phase of the cell division cycle is driven forward by cell-cycle kinases (Cdk) and coordinated with other phases of the cycle through checkpoint functions. Meiotic differentiation is also controlled by these two types of regulation; however, recent study in the budding yeast S. cerevisiae indicates that progression of meiosis is also controlled by a master regulator specific to meiosis, namely the Ime2p kinase. Below, I describe the overlapping roles of Ime2p and Cdk during meiosis in yeast and speculate on how these two kinases cooperate to drive the progression of meiosis.
Honigberg
Saul M
SM
Division of Cell Biology and Biophysics, School of Biological Sciences, University of Missouri-Kansas City, Kansas City, Missouri 64110-2499, USA. honigbergs@umkc.edu
D017489:CDC28 Protein Kinase, S cerevisiae / Q000502:physiology*; D018797:Cell Cycle Proteins / Q000502:physiology*; D004261:DNA Replication / Q000502:physiology; D047908:Intracellular Signaling Peptides and Proteins; D008540:Meiosis / Q000502:physiology*; D011494:Protein Kinases / Q000502:physiology*; D011499:Protein Processing, Post-Translational; D017346:Protein Serine-Threonine Kinases; D012323:RNA Processing, Post-Transcriptional; D029701:Saccharomyces cerevisiae Proteins / Q000502:physiology*
D018797:Cell Cycle Proteins; D047908:Intracellular Signaling Peptides and Proteins; D029701:Saccharomyces cerevisiae Proteins; D011494:Protein Kinases; C064979:IME2 protein, S cerevisiae; D017346:Protein Serine-Threonine Kinases; D017489:CDC28 Protein Kinase, S cerevisiae