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    • 4. 发明授权
    • Chromosome 14 and familial Alzheimers disease genetic markers and assays
    • 染色体14和家族性阿尔茨海默病遗传标记和测定
    • US5449604A
    • 1995-09-12
    • US964151
    • 1992-10-21
    • Gerard D. SchellenbergThomas D. BirdEllen M. Wijsman
    • Gerard D. SchellenbergThomas D. BirdEllen M. Wijsman
    • C07K14/47C12Q1/68C12P19/34
    • C07K14/4711C12Q1/6827C12Q1/6883C12Q2600/112C12Q2600/156Y10S128/925
    • Method for isolating a DNA segment indicative of an Alzheimer's disease trait in a family population, wherein said family population consists essentially of a plurality of blood relatives of an individual having a chromosome 14 Alzheimer's disease trait, by: preparing a test sample of immobilized separated genomic DNA fragments from a plurality of the blood relatives, contacting each of the test samples with a test oligonucleotide under conditions permitting hybridization of complementary single stranded DNA molecules, wherein the test oligonucleotide is complementary with at least a portion of a genetic marker located between band q11.2 and band q32.1 in chromosome 14, identifying a plurality of hybridized molecules so formed as alleles of the genetic marker in the family population, identifying one of the genetic marker alleles as indicative of the Alzheimer's disease trait in the family population by either determining by pedigree analysis a segregation value for each of the genetic markers alleles and the Alzheimer's disease trait, and selecting an indicative genetic marker allele that co-segregates with the Alzheimer's disease trait in the family population, or measuring genetic linkage between each of the genetic marker alleles and the Alzheimer's disease trait, and selecting a genetic marker allele as indicative of the Alzheimer's disease trait in the family population if the selected genetic marker allele has a maximal LOD score of at least 3 at a recombination fraction of about 0.0 to about 0.1 for genetic linkage with the Alzheimer's disease trait in the family population, and isolating a chromosome 14 DNA segment containing the indicative genetic marker allele.
    • 用于分离指示家族群体中的阿尔茨海默病性状的DNA片段的方法,其中所述家族群体基本上由具有14型阿尔茨海默氏病特征的个体的多个血亲属组成,通过:制备固定化分离的基因组的测试样品 来自多个血液亲属的DNA片段,在允许互补单链DNA分子杂交的条件下,使每个测试样品与测试寡核苷酸接触,其中所述测试寡核苷酸与至少部分位于条带q11之间的遗传标记物互补 染色体14中的.2和带q32.1,鉴定如在家族群体中如遗传标记的等位基因形成的多个杂交分子,通过以下任一种鉴定家族群体中的一种遗传标记等位基因作为阿尔茨海默病特征的指示 通过谱系分析确定每种遗传的分离值 标记等位基因和阿尔茨海默氏病特征,并选择与家族群体中的阿尔茨海默病特征共分离的指示性遗传标记等位基因,或测量每个遗传标记等位基因和阿尔茨海默氏病性状之间的遗传连锁,并选择遗传 如果所选择的遗传标记等位基因在与家族群体中的阿尔茨海默病性状的遗传连锁的约0.0至约0.1的重组部分具有至少3的最大LOD评分,则家族群体中的阿尔茨海默氏病性状的标记等位基因 并分离含有指示性遗传标记等位基因的染色体14DNA片段。