research Uterus Hyperplasia and Increased Carcinogen-Induced Tumorigenesis in Mice Carrying a Targeted Mutation of the Chk2 Phosphorylation Site in Brca1
In this study, Brca1(S971A/S971A) mice showed a moderately increased risk of spontaneous tumor formation and defects in DNA damage response, suggesting CHK2 phosphorylation of BRCA1 is crucial for tumor suppression.