Harger Jason W, Dinman Jonathan D
Department of Molecular Genetics, Microbiology and Immunology, UMDNJ Robert Wood Johnson Medical School, Piscataway, New Jersey 08854, USA.
RNA. 2003 Aug;9(8):1019-24. doi: 10.1261/rna.5930803.
A new in vivo assay system has been developed to study programmed frameshifting in the yeast Saccharomyces cerevisiae. Frameshift signals are inserted between the Renilla and firefly luciferase reporter genes contained in a yeast expression vector and the two activities are directly measured from cell lysates in one tube. Similar to other bicistronic reporter systems, this one allows the efficient estimation of recoding efficiency by comparison of the normalized activity ratios from each luciferase protein. The assay system has been applied to HIV-1 and L-A directed programmed -1 frameshifting and Ty1 and Ty3 directed +1 frameshifting. The assay system is amenable to high-throughput screening.
已开发出一种新的体内检测系统,用于研究酿酒酵母中的程序性移码。移码信号插入酵母表达载体中包含的海肾荧光素酶和萤火虫荧光素酶报告基因之间,两种活性可直接在一管细胞裂解物中进行测量。与其他双顺反子报告系统类似,该系统通过比较每种荧光素酶蛋白的标准化活性比率,能够有效地评估重编码效率。该检测系统已应用于HIV-1和L-A介导的程序性-1移码以及Ty1和Ty3介导的+1移码。该检测系统适用于高通量筛选。