p53 has pleiotropic functions including control of genomic plasticity and integrity. Here we report that p53 can bind to several transcription factor IIH−associated factors, including transcription−repair factors, XPD (Rad3) and XPB, as well as CSB involved in strand−specific DNA repair, via its C−terminal domain. We also found that wild−type, but not Arg273His mutant p53 inhibits XPD (Rad3) and XPB DNA helicase activities. Moreover, repair of UV−induced dimers is slower in Li−Fraumeni syndrome cells (heterozygote p53 mutant) than in normal human cells. Our findings indicate that p53 may play a direct role in modulating nucleotide excision repair pathways.

dx.doi.org/10.1038/ng0695-188, hdl.handle.net/1765/54884
Nature Genetics
Department of Molecular Genetics

Wang, X.W, Yeh, H, Schaeffer, L, Roy, R, Moncollin, V, Egly, J-M, … Harris, C.C. (1995). p53 modulation of TFIIH-associated nucleotide excision repair activity. Nature Genetics, 10(2), 188–195. doi:10.1038/ng0695-188