期刊
TRENDS IN GENETICS
卷 16, 期 5, 页码 213-220出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/S0168-9525(99)01970-8
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资金
- NCI NIH HHS [CA-77852] Funding Source: Medline
Werner syndrome (WS) is an autosomal recessive genetic disorder that is manifested by genetic instability and premature onset of age-related diseases, including atherosclerosis and cancer. The gene that is mutated in WS cells (WRN) has been identified recently. Characterizations of the WRN gene product indicate that WRN encodes both a 3'-->5' DNA helicase, belonging to the Escherichia coli RecQ helicase family, and a 3'-->5' DNA exonuclease. Studies to define the molecular mechanism of WRN-DNA transactions are currently underway in many laboratories. Preliminary results indicate that WRN functions as a key factor in resolving aberrant DNA structures that arise from DNA metabolic processes such as replication, recombination and/or repair, to preserve the genetic integrity in cells.
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