Company: Sigma-Aldrich
Catalog#: H8627
Product evaluation:
Single-molecule Analysis of DNA Replication Dynamics in Budding Yeast and Human Cells by DNA Combing
[Abstract]  The DNA combing method allows the analysis of DNA replication at the level of individual DNA molecules stretched along silane-coated glass coverslips. Before DNA extraction, ongoing DNA synthesis is labeled with halogenated analogues of thymidine. Replication tracks are visualized by immunofluorescence using specific antibodies. Unlike biochemical and NGS-based methods, DNA combing provides unique information on cell-to-cell variations in DNA replication profiles, including initiation and ...

DNA Damage Sensitivity Assays in Caenorhabditis elegans
[Abstract]  C. elegans has served as a genetically tractable multicellular model system to examine DNA damage-induced genotoxic stress which threatens genome integrity. Importantly, the high degree of conservation shared between worms and humans offers the advantage that findings about DNA damage-induced cell cycle arrest/checkpoint response and DNA double-strand break repair in worms are applicable to human studies. Here, we describe simple DNA damage sensitivity assays to quantify the response ...

DNA Damage Sensitivity Assays with Arabidopsis Seedlings
[Abstract]  We describe fast and reproducible sensitivity assays to quantify the response of Arabidopsis seedlings of different genotypes to a wide range of DNA damaging agents. We apply (1) γ-irradiation, which produces DNA breaks, (2) bleocin, a radiomimetic drug, (3) mitomycin C, a DNA intrastrand cross-linker, (4) hydroxyurea, an inhibitor of DNA synthesis and (5) UV-C, which causes mainly photoproducts. The “true leaf assay” and the “UV resistance assay” are based on easily determined ...

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