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中文摘要
翻译
电离辐射和其他氧化应激改变了 DNA. 这些碱基中有几种是DNA修复的底物 这表明它们也被修饰, 内源性氧化剂 这一建议继续研究形成 胸腺嘧啶和胞嘧啶的衍生物的DNA暴露于 氧化应激 这些修饰物的潜在致突变性 基地将进行研究。 一种修复酶,5-羟甲基尿嘧啶-N- 糖基化酶将被纯化, 研究了 用于识别这些物质的32 P后标记技术 将开发体内的基础。
英文摘要
Ionizing radiation and other oxidative stresses modify the bases in DNA. Several of these bases are substrates for DNA repair enzymes which is evidence that they are also modified by endogenous oxidants. This proposal continues to study formation of derivatives of thymine and cytosine in DNA exposed to oxidative stress. The potential mutagenicity of these modified bases will be studied. A repair enzyme, 5-hydroxymethyluracil-N- glycosylase will be purified so that its genetic expression may be studied. 32P-post labelling techniques for identification of these bases in vivo will be developed.
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GENOMIC DISTRIBUTION AND PHYLOGENY OF DNA REPAIR
  • 批准号:
    2093493
  • 项目类别:
  • 资助金额:
    $20.68万
  • 财政年份:
    1989
  • 负责人:
    GEORGE W TEEBOR
  • 依托单位:
GENOMIC DISTRIBUTION AND PHYLOGENY OF DNA REPAIR
  • 批准号:
    3194185
  • 项目类别:
  • 资助金额:
    $11.65万
  • 财政年份:
    1989
  • 负责人:
    GEORGE W TEEBOR
  • 依托单位:
FORMATION, MUTAGENICITY & REPAIR OF PHOTOHYDRATES IN DNA
GENOMIC DISTRIBUTION AND PHYLOGENY OF DNA REPAIR
  • 批准号:
    3194187
  • 项目类别:
  • 资助金额:
    $21.14万
  • 财政年份:
    1989
  • 负责人:
    GEORGE W TEEBOR
  • 依托单位:
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