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Distinct roles of RECQ1 in the maintenance of genomic stability Wu Y; Brosh RM JrDNA Repair (Amst) 2010[Mar]; 9 (3): 315-24Five human RecQ helicases (WRN, BLM, RECQ4, RECQ5, RECQ1) exist in humans. Of these, three are genetically linked to diseases of premature aging and/or cancer. Neither RECQ1 nor RECQ5 has yet been implicated in a human disease. However, cellular studies and genetic analyses of model organisms indicate that RECQ1 (and RECQ5) play an important role in the maintenance of genomic stability. Biochemical studies of purified RECQ1 protein demonstrate that the enzyme catalyzes DNA unwinding and strand annealing, and these activities are likely to be important for its role in DNA repair. RECQ1 also physically and functionally interacts with proteins involved in genetic recombination. In this review, we will summarize our current knowledge of RECQ1 roles in cellular nucleic acid metabolism and propose avenues of investigation for future studies.|*Genomic Instability[MESH]|Animals[MESH]|DNA Repair[MESH]|DNA Replication[MESH]|DNA/metabolism[MESH]|Gene Expression Regulation, Enzymologic[MESH]|Humans[MESH]|RecQ Helicases/chemistry/genetics/*metabolism[MESH] |
