title: RecQ helicases: at the heart of genetic stability.
abstract: The checkpoint-mediated control of DNA replication is essential for maintaining the stability of the genome and preventing cancer in humans. The RecQ family of helicases has been shown to be important for the maintenance of genomic integrity in organisms ranging from bacteria to man. We propose that the RecQ homologue, Sgs1p, has an important function in the S-phase checkpoint response of budding yeast, where it may be both a 'sensor' for damage during replication and a 'resolvase' for structures that arise at paused forks. RecQ helicases may serve a unique function that integrates checkpoint proteins with the recombination and replication fork machinery.
mesh_terms: D000251:Adenosine Triphosphatases / Q000502:physiology*; D000818:Animals; D018797:Cell Cycle Proteins; D064447:Checkpoint Kinase 2; D004265:DNA Helicases / Q000502:physiology*; D004261:DNA Replication; D006801:Humans; D017346:Protein Serine-Threonine Kinases / Q000235:genetics / Q000378:metabolism; D053484:RecQ Helicases; D011995:Recombination, Genetic; D016196:S Phase / Q000235:genetics*; D029701:Saccharomyces cerevisiae Proteins; D004718:Saccharomycetales / Q000235:genetics / Q000378:metabolism
chemical_list: D018797:Cell Cycle Proteins; D029701:Saccharomyces cerevisiae Proteins; D064447:Checkpoint Kinase 2; D017346:Protein Serine-Threonine Kinases; C067022:RAD53 protein, S cerevisiae; D000251:Adenosine Triphosphatases; C506725:RECQL protein, human; C090472:SGS1 protein, S cerevisiae; D004265:DNA Helicases; D053484:RecQ Helicases