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Gene expression profiling studies on Caenorhabditis elegans dystrophin mutants dys-1(cx-35) and dys-1(cx18).

机译:秀丽隐杆线虫肌营养不良蛋白突变体dys-1(cx-35)和dys-1(cx18)的基因表达谱研究。

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摘要

The Caenorhabditis elegans genome contains a single dystrophin/utrophin orthologue, dys-1. Point mutations in this gene, dys-1(cx35) and dys-1(cx18), result in truncated proteins. Such mutants offer potentially valuable worm models of human Duchenne muscular dystrophy. We have used microarrays to examine genes expressed differentially between wild-type C. elegans and dys-1 mutants. We found 106 genes (115 probe sets) to be differentially expressed when the two mutants are compared to wild-type worms, 49 of which have been assigned to six functional categories. The main categories of regulated genes in C. elegans are genes encoding intracellular signalling, cell-cell communication, cell-surface, and extracellular matrix proteins; genes in these same categories have been shown by others to be differentially expressed in muscle biopsies of muscular dystrophy patients. The C. elegans model may serve as a convenient vehicle for future genetic and chemical screens to search for new drug targets.
机译:秀丽隐杆线虫基因组包含单个肌营养不良蛋白/促营养素直向同源物dys-1。该基因dys-1(cx35)和dys-1(cx18)的点突变导致蛋白质被截短。这样的突变体提供了潜在的有价值的人类杜氏肌营养不良的蠕虫模型。我们已经使用微阵列检查野生型秀丽隐杆线虫和dys-1突变体之间差异表达的基因。当两个突变体与野生型蠕虫进行比较时,我们发现106个基因(115个探针组)被差异表达,其中49个已被划分为六个功能类别。秀丽隐杆线虫中调控基因的主要类别是编码细胞内信号转导,细胞间通讯,细胞表面和细胞外基质蛋白的基因。这些相同类别的基因已被其他人证明在肌营养不良患者的肌肉活检中差异表达。秀丽隐杆线虫模型可以用作将来的遗传和化学筛选以寻找新药物靶标的便利工具。

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