Alkyltransferase-like proteins: molecular switches between DNA repair pathways.

Alkyltransferase-like proteins: molecular switches between DNA repair pathways.
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烷基转移酶样蛋白:DNA修复途径之间的分子开关。

DOI:
10.1007/s00018-010-0405-8
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发表时间:
2010-11
影响因子:
8
通讯作者:
Tainer, John A.
Tainer, John A.
中科院分区:
生物学1区
文献类型:
--
作者:
Tubbs, Julie L.;Tainer, John A.

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烷基转移酶样蛋白(Alkyltransferase-like proteins,ATLs)在保护细胞免受DNA烷基化损伤的生物学效应中起作用。虽然ATL与DNA修复蛋白和癌症化疗靶点O 6-烷基鸟嘌呤-DNA烷基转移酶共享功能基序,但它们缺乏烷基转移酶活性所需的反应性半胱氨酸残基,因此其细胞保护机制以前未知。在这里,我们回顾了在解开ATL提供的神秘细胞保护作用以对抗DNA烷基化损伤的有害影响方面的最新进展。我们讨论了令人兴奋的新证据,ATLs的援助,通过一种新的修复DNA烷基化碱基损伤反应和DNA核苷酸切除修复途径之间的串扰DNA O 6-烷基鸟嘌呤病变的修复。
Alkyltransferase-like proteins (ATLs) play a role in the protection of cells from the biological effects of DNA alkylation damage. Although ATLs share functional motifs with the DNA repair protein and cancer chemotherapy target O6-alkylguanine-DNA alkyltransferase, they lack the reactive cysteine residue required for alkyltransferase activity, so its mechanism for cell protection was previously unknown. Here, we review recent advances in unravelling the enigmatic cellular protection provided by ATLs against the deleterious effects of DNA alkylation damage. We discuss exciting new evidence that ATLs aid in the repair of DNA O6-alkylguanine lesions through a novel repair cross-talk between DNA-alkylation base damage responses and the DNA nucleotide excision repair pathway.
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发表时间: 2006-01-27
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