title: Rad9, an evolutionarily conserved gene with multiple functions for preserving genomic integrity.
abstract: The Rad9 gene is evolutionarily conserved. Analysis of the gene from yeast, mouse and human reveal roles in multiple, fundamental biological processes primarily but not exclusively important for regulating genomic integrity. The encoded mammalian proteins participate in promoting resistance to DNA damage, cell cycle checkpoint control, DNA repair, and apoptosis. Other functions include a role in embryogenesis, the transactivation of multiple target genes, co-repression of androgen-induced transcription activity of the androgen receptor, a 3'-5' exonuclease activity, and the regulation of ribonucleotide synthesis. Analyses of the functions of Rad9, and in particular its role in regulating and coordinating numerous fundamental biological activities, should not only provide information about the molecular mechanisms of several individual cellular processes, but might also lend insight into the more global control and coordination of what at least superficially present as independent pathways.
authors.affiliation: Center for Radiological Research, Columbia University, 630 W. 168th St., New York, New York 10032, USA. lieberman@cancercenter.columbia.edu
authors.forename: Howard B
authors.initials: HB
authors.lastname: Lieberman
mesh_terms: D000818:Animals; D017209:Apoptosis / Q000502:physiology; D002453:Cell Cycle / Q000502:physiology; D018797:Cell Cycle Proteins / Q000235:genetics* / Q000502:physiology; D004249:DNA Damage / Q000502:physiology*; D019143:Evolution, Molecular; D005786:Gene Expression Regulation / Q000502:physiology*; D016678:Genome / Q000502:physiology*; D006801:Humans; D051379:Mice; D012568:Schizosaccharomyces; D017386:Sequence Homology, Amino Acid
chemical_list: D018797:Cell Cycle Proteins; C069930:rad9 protein