Distinct roles of RECQ1 in the maintenance of genomic stability.

Distinct roles of RECQ1 in the maintenance of genomic stability.
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DOI:
10.1016/j.dnarep.2009.12.010
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发表时间:
2010-03-02
期刊:
影响因子:
3.8
通讯作者:
Brosh RM Jr
Brosh RM Jr
中科院分区:
医学3区
文献类型:
--
作者:
Wu Y;Brosh RM Jr

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人类中存在五种人RecQ解旋酶(WRN、BLM、RECQ 4、RECQ 5、RECQ 1)。其中,三种与过早衰老和/或癌症的疾病有关。RECQ 1和RECQ 5都没有涉及人类疾病。然而,模式生物的细胞研究和遗传分析表明RECQ 1(和RECQ 5)在维持基因组稳定性方面发挥重要作用。纯化RECQ 1蛋白的生化研究表明,该酶催化DNA解旋和链退火,这些活动可能是重要的DNA修复中的作用。RECQ 1还与参与遗传重组的蛋白质在物理和功能上相互作用。在这篇综述中,我们将总结我们目前对RECQ 1在细胞核酸代谢中的作用的认识,并为未来的研究提出调查途径。
Five 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.
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