这个基因是一组基因的一员，在紧张的生长停滞状态和用DNA破坏剂治疗后，这些基因的转录水平会增加。无论p53的状态如何，电离辐射对该基因的诱导都发生在某些细胞系中，其蛋白反应与电离辐射后细胞凋亡有关。
This gene is a member of a group of genes whose transcript levels are increased following stressful growth arrest conditions and treatment with DNA-damaging agents. The induction of this gene by ionizing radiation occurs in certain cell lines regardless of p53 status, and its protein response is correlated with apoptosis following ionizing radiation.