7 rezultatus
Mimosine is an effective cell synchronization reagent used for arresting cells in late G1 phase. However, the mechanism underlying mimosine-induced G1 cell cycle arrest remains unclear. Using highly synchronous cell populations, we show here that mimosine blocks S phase entry through ATM activation.
Exposure of mammalian cells to ionizing radiation causes a delay in progression through the cycle at several checkpoints. Cells from patients with ataxia-telangiectasia (A-T) ignore these checkpoint controls postirradiation. The tumour suppressor gene product p53 plays a key role at the G1/S
Exposure of mammalian cells to ionizing radiation causes a delay in progression through the cycle at several checkpoints. Cells from patients with ataxia-telangiectasia (A-T) ignore these checkpoint controls postirradiation. The tumour suppressor gene product p53 plays a key role at the G1/S
Exposure of mammalian cells to ionizing radiation causes a delay in progression through the cycle at several checkpoints. Cells from patients with ataxia-telangiectasia (A-T) ignore these checkpoint controls postirradiation. The tumour suppressor gene product p53 plays a key role at the G1/S
Exposure of mammalian cells to ionizing radiation causes delay in normal progress through the cell cycle at a number of different checkpoints. Abnormalities in these checkpoints have been described for ataxia telangiectasia cells after irradiation. In this report we show that these abnormalities
Cell cycle anomalies have been described in ataxia-telangiectasia cells after exposure to ionizing radiation. A recent report demonstrates that cells from these patients lack the ionizing radiation-induced increase in p53 protein seen in controls. We report here that an ionizing radiation-induced
When fed 100% Leucaena during a period of 45 days goats with experience in L.-fodder took significantly (P less than 0.05) more dry matter (50.01 g/kg0.75) than those without or only possible experience (44.40 g/kg0.75 and 45.63 g/kg0.75). The uptake of Mimosine from animals with Mimosine experience