base excision DNA repair
A base-excision DNA-repair protein finds intrahelical lesion bases by fast sliding in contact with DNA
... along DNA by molecular motors, the Brownian target search is extraordinarily ...G:C base pairs has recently been gleaned from cocrystal structures of MutM bound to non-lesion-containing DNA ...
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Base excision repair of ionizing radiation-induced DNA damage in G1 and G2 cell cycle phases
... enhanced repair activities when cells were delayed in G2 ...higher repair endonuclease activity to incise 8-oxo-G than unirradiated cells ...enhanced repair activity might be a feature of ...
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Base excision repair and the role of MUTYH
... Recent findings from experiments employing full-length structure of MutY cross-linked to DNA containing 8-oxoG have shed light on the mechanism of recognition and removal of 8-oxoG:A mismatched by MutY. Although ...
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DNA-PK Deficiency in Alzheimer's Disease
... of DNA repair systems such as base excision repair (BER), nucleotide excision repair (NER), single strand break repair (SSBR), and double strand break repair ...
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The function of CUX1 in oxidative DNA damage repair is needed to prevent premature senescence of mouse embryo fibroblasts
... in base excision repair by stimulating the function of OGG1 has important implications beyond the repair of 8-oxoG ...of DNA glycosylases could be facilitated by DNA binding ...
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Base flipping in nucleotide excision repair
... both DNA strands is related to formation of the UvrB-DNA ...the DNA can bind again as soon as the mixture is loaded on the ...the DNA surrounding the ...
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Functional studies of accessory factors associated with base excision repair
... In our functional evaluation of XRCC1 polymorphisms, we determined that relative to the wild-type protein the 280His variant decreased the DNA repair capacity of mammalian cells exposed to chemical ...
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Role of Repair Enzymes - Damage Control of DNA From Ageing pans
... Base excision repair (BER) involves multiple enzymes to excise and replace a single damaged nucleotide ...The base modifications primarily repaired by BER enzymes are those damaged by ...
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Characterisation of unusual DNA glycosylases from Trichomonas vaginalis
... Human DNA repair enzymes involved in base excision repair, mismatch repair, non- homologous end joining, and homologous recombination were identified and used to find possible ...
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The alterations of XRCC1 gene’s polymorphism with a different SNP is involved in breast cancer
... 14. Luo H, Li Z, Qing Y, Zhang S-H, Peng Y, Li Q, et al. Single nucleotide polymorphisms of DNA base-excision repair genes (APE1, OGG1 and XRCC1) associated with breast cancer risk in a ...
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Genome stability pathways in head and neck cancers
... are DNA repair proteins that have direct affinity to many DNA lesions and once bound autocatalyze the generation of a PAR polymer which induces chromatin decondensation and recruits many other ...
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The nexus of vitamin homeostasis and DNA synthesis and modification in mammalian brain
... in DNA which is the most abundant in ...in DNA, prior to glycosylase removal and base excision repair, helps explain many heretofore unexplained phenomena in brain including: 1) the ...
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The Relative Roles of Three DNA Repair Pathways in Preventing Caenorhabditis elegans Mutation Accumulation
... three excision repair pathways in eukaryotes has benefited from decades of intense study from a variety of biochemical and molecular genetic ap- proaches, primarily in Saccharomyces cerevisiae and mam- ...
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8 Oxoguanine causes neurodegeneration during MUTYH mediated DNA base excision repair
... in DNA, thereby triggering 2 distinct cell death pathways dependent on calpain or ...in DNA, thereby triggering 2 distinct cell death pathways dependent on calpain or PARP-AIF, as summarized in Figure ...
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Detection of Somatic Mutation in Exon 12 of DNA Polymerase β in Ovarian Cancer Tissue Samples
... Background: DNA polymerase β (pol β) is a key enzyme of base excision repair ...Genomic DNA was isolated from ovarian carcinoma ...
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Studies on protein:protein interactions in mammalian DNA base-excision repair
... in DNA editing during ...gapped DNA (Chou and Cheng, ...of DNA ligase III to achieve this discrimination (Bhagwat et a l, ...for DNA editing during BER is correct, but it seems that DNase III ...
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Why Is DNA Double Stranded? The Discovery of DNA Excision Repair Mechanisms
... of DNA came from. He quotes Chargaff’s work showing the different base composition of DNAs from various bacteria (Chargaff 1950), but he also quotes work from Mirsky’s laboratory (Daly et ...same ...
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The XPC-hHR23b complex and nucleotide excision repair of DNA
... corrects base m isincorporation errors after DNA synthesis and also acts on m ispaired bases th at can occur in recom bination interm ...1992). Repair is initiated only on the new ly synthesized ...
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Advances in using PARP inhibitors to treat cancer
... of DNA integrity as part of the base excision pathway of DNA ...to repair DNA damage may have antitumor activity in itself, as well as enhance the antineoplastic potential of ...
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Use of uracil-DNA glycosylase enzyme to reduce DNA-related artifacts from formalin-fixed and paraffin-embedded tissues in diagnostic routine
... of DNA damage generated in FFPE tissues, including deamin- ation of cytosine to uracil or deamination of 5- methylcytosine (5-mC) to thymine ...in DNA, which con- tributes significantly to the appearance of ...
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