The universal cell-cycle inhibitor p21 Cip1/WAF1 is phosphorylated and localized in the cytoplasm in Her2/neu-overexpressing breast cancers as a result of its physical association with the ...
Among the p53 target genes are WAF1, an inhibitor of cyclin-dependent protein kinases (CDKs) that, among other activities, causes cell-cycle arrest, and BAX, which promotes apoptotic cell death.