Distinct but Concerted Roles of ATR, DNA-PK, and Chk1 in Countering Replication Stress during S Phas

来源 :The 16th Ataxia-Telangiectasia Workshop (ATW-2015)6th Intern | 被引量 : 0次 | 上传用户:qwer_xxx
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The ATR-Chk1 pathway is critical for DNA damage responses and cell cycle progression.Chk 1 inhibition is more deleterious to cycling cells than ATR inhibition,raising questions about ATR and Chk1 functions in the absence of extrinsic replication stress.Here, we show that a key role of ATR in S phase is to coordinate RRM2 accumulation and origin firing.
其他文献
Ataxia Telangiectasia (AT) is a rare monogenic disorder, inherited as autosomal recessive, characterized by progressive cerebellar ataxia associated with loss of Purkinje cells, oculocutaneous telangi
会议
Ataxia-Telangiectasia (A-T) is the most prominent among the inherited neuropathological disorders caused by defects in the DNA damage response pathway.Albeit neurodegeneration in A-T has initially bee
会议
Introduction: Ataxia Telangiectasia (A-T) is a rare genetic disorder with symptoms including ataxia and involuntary movements, higher risk of infections, and high risk of cancer [1].There is currently
会议
The loss of Ataxia Telangiectasia Mutated (ATM) protein function is a frequent event in the pathogenesis of sporadic haematopoietic malignancies such as Chronic Lymphocytic Leukaemia (CLL), T-Prolymph
会议
Fanconi anemia (FA) is a rare genetic disease characterized by genome instability,cancer predisposition, bone marrow failure and various developmental abnormalities.Here we report two unrelated Japane
会议
Nijmegen breakage syndrome (NBS) as well as Ataxia Telangiectasia (A-T) is a radiation-hypersensitive genetic disorder, showing chromosomal instability, radioresistant DNA synthesis, and predispositio
会议
Structure-specific nucleases play crucial roles in DNA replication and DNA repair.The mechanisms of their regulation are not fully understood.Recently we reported a fission yeast protein, Pxd1, that r
会议
DNA double strand break is one of the most detrimental DNA damages, which must be repaired for the maintenance of genomic stability.Damage recognition by the Mre11-Rad50-Nbs1 complex is the earliest e
会议
DNA double-strand breaks can harbour different types of chemical moieties that differ from the canonical 5phosphate and 3hydroxyl at the ends.Cells are therefore endowed with a wide variety of enzymat
会议
The MRN (Mre11-Rad50-Nbs1) complex is well known for participating in DNA damage response pathways in all phases of cell cycle.Here we show that MRN constitutes a mitosis-specific complex, named mMRN,
会议