A cell is being held in g1 phase due to dna damage caused by uv radiation. when the dna is damaged, p53 is phorphorylated and prevents entry into what phase?
So when DNA is damaged, p53 is actived and prevents the cell from entering the S phase where replication of cell happens. The cell regulation is done by the phosphorylated p53 for a proper and precise replication of cell to avoid any abnormalities.
