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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Metabolic control of the cell cycle in bacteria
 Valtová, Aneta ; Lichá, Irena (advisor) ; Fišer, Radovan (referee)
Metabolic control of cell cycle has been studied for a long time in bacteria, but it is not still fully elucitated. The mechanisms described for several decades have been described in more detail and find new connections between basic metabolism and the cell division process itself. Cell cycle regulation, depending on metabolism and nutritional conditions, takes place over all steps of the cycle. The most mechanisms are studied at the level of bacterial division formation. Nutritional deprivation induces stress responses that use low-molecular substances which are involved in signaling pathways and which regulate the cell cycle. One of the most studying is the molecule of guanosine (penta)tetraphosphate (p)ppGpp, which affects cell cycle at the level of genes expression, at the level of proteins involved in the process of creating divisome, even at the level of replication. Recent research revealed that some enzymes with their already known enzymatic function in major metabolic pathways (glycolysis and TCA), also have a function as sensors that transmit a signal about the nutritional change directly to the division apparatus of the cell. These enzymes regulate the formation of the Z ring through the protein FtsZ or its auxiliary proteins most often and have been found in Gram-positive (Bacillus...
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