Biomaterial Database

Cell cycle control and initiation of DNA replication in Saccharomyces cerevisiae. 1996

H Küntzel, and A Schulz, and I M Ehbrecht

Max-Planck-Institut für experimentelle Medizin, Göttingen, Germany.

The cell cycle of budding yeast is controlled by a single cyclin-dependent protein kinase (Cdc28/Cdk1) which successively associates with the stage-specific activators Cln1-3 (G1 phase), Clb5,6 (S phase), Clb3,4 (S/G2 phase) and Clb1,2 (mitosis). The temporal pattern of these Cdk1/cyclin activities imposes a strict order of DNA replication events during the cycle: formation of a pre-replication complex at late M phase, initiation of replication at the G1/s transition, support of replication during S phase, and the prevention of re-replication at G2. A key component involved in S phase initiation is the Cdc6 protein, a transiently expressed DNA-independent ATP/GTPase interacting at late mitosis with an origin-recognizing complex.

UI	MeSH Term	Description	Entries
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
D004261	DNA Replication	The process by which a DNA molecule is duplicated.	Autonomous Replication,Replication, Autonomous,Autonomous Replications,DNA Replications,Replication, DNA,Replications, Autonomous,Replications, DNA
D004789	Enzyme Activation	Conversion of an inactive form of an enzyme to one possessing metabolic activity. It includes 1, activation by ions (activators); 2, activation by cofactors (coenzymes); and 3, conversion of an enzyme precursor (proenzyme or zymogen) to an active enzyme.	Activation, Enzyme,Activations, Enzyme,Enzyme Activations
D012441	Saccharomyces cerevisiae	A species of the genus SACCHAROMYCES, family Saccharomycetaceae, order Saccharomycetales, known as "baker's" or "brewer's" yeast. The dried form is used as a dietary supplement.	Baker's Yeast,Brewer's Yeast,Candida robusta,S. cerevisiae,Saccharomyces capensis,Saccharomyces italicus,Saccharomyces oviformis,Saccharomyces uvarum var. melibiosus,Yeast, Baker's,Yeast, Brewer's,Baker Yeast,S cerevisiae,Baker's Yeasts,Yeast, Baker
D018741	Replication Origin	A unique DNA sequence of a replicon at which DNA REPLICATION is initiated and proceeds bidirectionally or unidirectionally. It contains the sites where the first separation of the complementary strands occurs, a primer RNA is synthesized, and the switch from primer RNA to DNA synthesis takes place. (Rieger et al., Glossary of Genetics: Classical and Molecular, 5th ed)	Origin of Replication,ori Region,Origin, Replication,Origins, Replication,Region, ori,Regions, ori,Replication Origins,ori Regions