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首页> 外文期刊>The journals of gerontology.Series A. Biological sciences and medical sciences >Expression of a Single-Copy hsp-16.2 Reporter Predicts Life span.
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Expression of a Single-Copy hsp-16.2 Reporter Predicts Life span.

机译:单副本hsp-16.2 Reporter的表达式可预测寿命。

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The level of green fluorescent protein expression from an hsp-16.2-based transcriptional reporter predicts life span and thermotolerance in Caenorhabditis elegans. The initial report used a high-copy number reporter integrated into chromosome IV. There was concern that the life-span prediction power of this reporter was not attributable solely to hsp-16.2 output. Specifically, prediction power could stem from disruption of some critical piece of chromatin on chromosome IV by the gpIs1 insertion, a linked mutation from the process used to create the reporter, or from an artifact of transgene regulation (multicopy transgenes are subject to regulation by C elegans chromatin surveillance machinery). Here we determine if the ability to predict life span and thermotolerance is specific to the gpIs1 insertion or a general property of hsp-16.2-based reporters. New single-copy hsp-16.2-based reporters predict life span and thermotolerance. We conclude that prediction power of hsp-16.2-based transcriptional reporters is not an artifact of any specific transgene configuration or chromatin surveillance mechanism.
机译:基于hsp-16.2的转录报告基因的绿色荧光蛋白表达水平可预测秀丽隐杆线虫的寿命和耐热性。最初的报告使用了整合到IV号染色体中的高拷贝数报告子。令人担忧的是,该报道分子的寿命预测能力并非仅归因于hsp-16.2输出。具体而言,预测能力可能源于gpIs1插入破坏了IV号染色体上一些重要的染色质片段,来自用于创建报告基因的过程的连锁突变或转基因调控的人工产物(多拷贝转基因受C调控)。线虫染色质监测机器)。在这里,我们确定预测寿命和耐热性的能力是否特定于gpIs1插入或基于hsp-16.2的报告基因的一般属性。新的基于单拷贝hsp-16.2的报道分子预测寿命和耐热性。我们得出的结论是,基于hsp-16.2的转录报告子的预测能力不是任何特定转基因配置或染色质监视机制的假象。

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