作者: Xiaohong Helena Yang , Lee Zou
DOI: 10.1016/S0076-6879(05)09007-5
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摘要: The ATR (ataxia-telangiectasia mutated and rad3-related)-ATRIP (ATR-interacting protein) kinase complex plays a central role in the checkpoint responses to variety of types DNA damage, especially those interfering with replication. checkpoint-signaling pathway activated by ATR-ATRIP regulates coordinates cell-cycle progression, replication, repair, many other cellular processes critical for genomic stability. Upon damage or replication interference, two its key regulators, Rad17 9-1-1 complexes, are localized sites stalled forks. Recent biochemical cell biological studies have revealed that RPA-coated single-stranded DNA, common structure generated at forks, crucial roles recruitment ATR-ATRIP, Rad17, complexes. regulators is step recognition checkpoint, likely important regulation activity and/or function response damage. methods used characterize association complexes laid foundation further studies, which may ultimately lead us understand molecular mechanisms monitors protects integrity.