obsolete DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest https://github.com/geneontology/go-ontology/issues/26003 true GO:0006977 biological_process positive regulation of cell cycle arrest by p53-mediated DNA damage response OBSOLETE. A cascade of processes induced by the cell cycle regulator phosphoprotein p53, or an equivalent protein, in response to the detection of DNA damage and resulting in the stopping or reduction in rate of the cell cycle. The reason for obsoletion is that this term is about down stream effects, not the signaling pathway itself. DNA damage response, signal transduction by p53 class mediator