...确地定位在Xq13,继而,他们又在XIC的同一区域内鉴定出了一个新的基因即X染色体失活特异转录子(X inactive specific transcripts,XIST),与RPS4X相邻。研究表明XIST的表达产物是一种顺式作用的核RNA,而不编码生成蛋白质。
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The cis-acting response element (TAR) of Tat transactivator is a stem-loop structure RNA present within the first 60 nucleotides of all HIV-1 transcripts.
Tat的顺式作用应答元件TAR RNA是指HIV-1转录子5′端的前60个核苷酸,它具有典型的“茎-环”二级结构。
参考来源 - Tat和TAR对人免疫缺陷病毒HIV·2,447,543篇论文数据,部分数据来源于NoteExpress
基于三个转录子位置的碱基组态分析,转译层次上的筛选效应存在于所有的细菌当中。
The selection pressure at the translation level is evident in all bacteria based on the analysis of the skew at the three codon positions.
乳腺癌和良性病变中很多外显子被差异性表达,以及促成乳腺癌分子特征的选择性转录子。
Many exons are differently expressed by breast cancer and benign lesions, and alternative transcripts contribute to the molecular characteristics of breast malignancy.
有时一个逆转录子会插在另一个中间,也给一个动物族群的进化的基因序列提供了重要的线索。
Sometimes one retroposon is inserted in the middle of another, again giving vital clues as to the sequence of events in a family's evolution.
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