Altered states: programmed proteolysis and the budding yeast cell cycle.
The recent identification of an essential RING-H2 finger protein in the SCF E3 ubiquitin ligase complex of budding yeast has uncovered a family of related E3 enzymes, including the other main cell cycle E3 complex, the anaphase promoting complex (APC). Recent insights into APC-dependent proteolysis include a novel protease activity that dissolves cohesion between sister chromatids at anaphase, and a crucial phosphatase, Cdc14, whose release from the nucleolus eliminates cyclin-dependent kinase activity and thereby drives exit from mitosis.
Jorgensen
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Programme in Molecular Biology and Cancer, Graduate Department of Molecular and Medical Genetics, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, University of Toronto, Toronto, M5G 1X5, M5S 1A8, Canada.
Tyers
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D064173:Anaphase-Promoting Complex-Cyclosome; D002453:Cell Cycle / Q000235:genetics; D005656:Fungal Proteins / Q000378:metabolism; D015966:Gene Expression Regulation, Fungal; D008025:Ligases / Q000235:genetics / Q000378:metabolism*; D010453:Peptide Synthases / Q000235:genetics / Q000378:metabolism*; D044843:SKP Cullin F-Box Protein Ligases; D043743:Ubiquitin-Protein Ligase Complexes; D044767:Ubiquitin-Protein Ligases; D015003:Yeasts / Q000201:enzymology / Q000235:genetics* / Q000254:growth & development*
D005656:Fungal Proteins; D043743:Ubiquitin-Protein Ligase Complexes; D064173:Anaphase-Promoting Complex-Cyclosome; D044843:SKP Cullin F-Box Protein Ligases; D044767:Ubiquitin-Protein Ligases; D008025:Ligases; D010453:Peptide Synthases