Initiation of DNA Interstrand Cross-Link Repair in Humans: the Nucleotide Excision Repair System Makes Dual Incisions 59 to the Cross-Linked Base and Removes a 22- to 28-Nucleotide-Long Damage-Free Strand
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The multifaceted influence of histone deacetylases on DNA damage signalling and DNA repair
Histone/protein deacetylases play multiple roles in regulating gene expression and protein activation and stability. Their deregulation during cancer initiation and progression cause resistance to therapy. Here, we review the role of histone deacetylases (HDACs) and the NAD+ dependent sirtuins (SIRTs) in the DNA damage response (DDR). These lysine deacetylases contribute to DNA repair by base e...
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Objective(s): Coronary artery disease (CAD) is the leading cause of death in both male and female worldwide. The main cause of CAD is the atherosclerosis of coronary arteries, which is, mostly caused by genetic alteration. 50% of such cases occur in mitotic cells where single-strand breaks occur spontaneously or due to ionizing radiation. X-ray repair cross-complementing protein 1 (XRCC1) as a ...
متن کاملCho Endonuclease Functions during DNA Interstrand Cross-Link Repair in Escherichia coli.
DNA interstrand cross-links are complex lesions that covalently link both strands of the duplex DNA. Lesion removal is proposed to be initiated via the UvrABC nucleotide excision repair complex; however, less is known about the subsequent steps of this complex repair pathway. In this study, we characterized the contribution of nucleotide excision repair mutants to survival in the presence of ps...
متن کاملDNA interstrand cross-links induce futile repair synthesis in mammalian cell extracts.
DNA interstrand cross-links are induced by many carcinogens and anticancer drugs. It was previously shown that mammalian DNA excision repair nuclease makes dual incisions 5' to the cross-linked base of a psoralen cross-link, generating a gap of 22 to 28 nucleotides adjacent to the cross-link. We wished to find the fates of the gap and the cross-link in this complex structure under conditions co...
متن کاملDNA interstrand crosslink repair during G1 involves nucleotide excision repair and DNA polymerase zeta.
The repair mechanisms acting on DNA interstrand crosslinks (ICLs) in eukaryotes are poorly understood. Here, we provide evidence for a pathway of ICL processing that uses components from both nucleotide excision repair (NER) and translesion synthesis (TLS) and predominates during the G1 phase of the yeast cell cycle. Our results suggest that repair is initiated by the NER apparatus and is follo...
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تاریخ انتشار 1997