@article{oai:repo.qst.go.jp:00043860, author = {Ishii, Hideshi and Inageta, Taeko and Mimori, Koshi and Saito, Toshiyuki and Sasaki, Hiroki and Isobe, Masaharu and Mori, Masaki and M., Croce Carlo and Huebner, Kay and Ozawa, Keiya and Furukawa, Y and 齋藤 俊行}, issue = {27}, journal = {Proceedings of the National Academy of Sciences of the United States of America}, month = {Jul}, note = {We report the identification and characterization of a potent regulator of genomic integrity, mouse and human FRAG1 gene, a conserved homolog of replication factor C large subunit that is homologous to the alternative replication factor C subunits Elg1, Ctf18/Chl12, and Rad24 of budding yeast. FRAG1 was identified in a search for key caretaker genes involved in the regulation of genomic stability under conditions of replicative stress. In response to stress, Atr participates in the down-regulation of FRAG1 expression, leading to the induction of apoptosis through the release of Rad9 from damaged chromatin during the S phase of the cell cycle, allowing Rad9-Bcl2 association and induction of proapoptotic Bax protein. We propose that the Frag1 signal pathway, by linking replication stress surveillance with apoptosis induction, plays a central role in determining whether DNA damage is compatible with cell survival or whether it requires cell elimination by apoptosis.}, pages = {9655--9660}, title = {Frag1, a homolog of alternative replication factor C subunits, links replication stress surveillance with apoptosis}, volume = {102}, year = {2005} }