A cell cycle-regulated inhibitor of cyclin-dependent kinases. 1994

L Hengst, and V Dulic, and J M Slingerland, and E Lees, and S I Reed
Department of Molecular Biology, Scripps Research Institute, La Jolla, CA 92037.

Cyclin-dependent kinases (Cdks) previously have been shown to drive the major cell cycle transitions in eukaryotic organisms ranging from yeast to humans. We report here the identification of a 28-kDa protein, p28Ick (inhibitor of cyclin-dependent kinase), that binds to and inhibits the kinase activity of preformed Cdk/cyclin complexes from human cells. p28 inhibitory activity fluctuates during the cell cycle with maximal levels in G1 and accumulates in G1- and G0-arrested cells. These results suggest that control of the G1/S transition may be influenced by a family of Cdk inhibitors that include p28Ick and the recently described inhibitors p21Cip1/Waf1/Cap20 and p16Ink4.

UI MeSH Term Description Entries
D008148 Lovastatin A fungal metabolite isolated from cultures of Aspergillus terreus. The compound is a potent anticholesteremic agent. It inhibits 3-hydroxy-3-methylglutaryl coenzyme A reductase (HYDROXYMETHYLGLUTARYL COA REDUCTASES), which is the rate-limiting enzyme in cholesterol biosynthesis. It also stimulates the production of low-density lipoprotein receptors in the liver. Lovastatin, 1 alpha-Isomer,Mevinolin,6-Methylcompactin,Lovastatin, (1 alpha(S*))-Isomer,MK-803,Mevacor,Monacolin K,1 alpha-Isomer Lovastatin,6 Methylcompactin,Lovastatin, 1 alpha Isomer,MK 803,MK803,alpha-Isomer Lovastatin, 1
D008297 Male Males
D011494 Protein Kinases A family of enzymes that catalyze the conversion of ATP and a protein to ADP and a phosphoprotein. Protein Kinase,Kinase, Protein,Kinases, Protein
D002453 Cell Cycle The complex series of phenomena, occurring between the end of one CELL DIVISION and the end of the next, by which cellular material is duplicated and then divided between two daughter cells. The cell cycle includes INTERPHASE, which includes G0 PHASE; G1 PHASE; S PHASE; and G2 PHASE, and CELL DIVISION PHASE. Cell Division Cycle,Cell Cycles,Cell Division Cycles,Cycle, Cell,Cycle, Cell Division,Cycles, Cell,Cycles, Cell Division,Division Cycle, Cell,Division Cycles, Cell
D006367 HeLa Cells The first continuously cultured human malignant CELL LINE, derived from the cervical carcinoma of Henrietta Lacks. These cells are used for, among other things, VIRUS CULTIVATION and PRECLINICAL DRUG EVALUATION assays. Cell, HeLa,Cells, HeLa,HeLa Cell
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D016213 Cyclins A large family of regulatory proteins that function as accessory subunits to a variety of CYCLIN-DEPENDENT KINASES. They generally function as ENZYME ACTIVATORS that drive the CELL CYCLE through transitions between phases. A subset of cyclins may also function as transcriptional regulators. Cyclin
D017346 Protein Serine-Threonine Kinases A group of enzymes that catalyzes the phosphorylation of serine or threonine residues in proteins, with ATP or other nucleotides as phosphate donors. Protein-Serine-Threonine Kinases,Serine-Threonine Protein Kinase,Serine-Threonine Protein Kinases,Protein-Serine Kinase,Protein-Serine-Threonine Kinase,Protein-Threonine Kinase,Serine Kinase,Serine-Threonine Kinase,Serine-Threonine Kinases,Threonine Kinase,Kinase, Protein-Serine,Kinase, Protein-Serine-Threonine,Kinase, Protein-Threonine,Kinase, Serine-Threonine,Kinases, Protein Serine-Threonine,Kinases, Protein-Serine-Threonine,Kinases, Serine-Threonine,Protein Kinase, Serine-Threonine,Protein Kinases, Serine-Threonine,Protein Serine Kinase,Protein Serine Threonine Kinase,Protein Serine Threonine Kinases,Protein Threonine Kinase,Serine Threonine Kinase,Serine Threonine Kinases,Serine Threonine Protein Kinase,Serine Threonine Protein Kinases
D042846 CDC2-CDC28 Kinases A family of cell cycle-dependent kinases that are related in structure to CDC28 PROTEIN KINASE, S CEREVISIAE and the CDC2 PROTEIN KINASE found in mammalian species. CDC2-Related Kinases,CDC2+-CDC28-related Protein Kinase,CDC2-Related Kinase,CDC28-Related Kinases,CDC2 CDC28 Kinases,CDC2 Related Kinase,CDC2 Related Kinases,CDC2+ CDC28 related Protein Kinase,CDC28 Related Kinases
D047428 Protein Kinase Inhibitors Agents that inhibit PROTEIN KINASES. Protein Kinase Inhibitor,Inhibitor, Protein Kinase,Inhibitors, Protein Kinase,Kinase Inhibitor, Protein,Kinase Inhibitors, Protein

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