ROR1 ENST00000545203的变体转录不编码ROR1蛋白质
Jie Xian1, Navyaa Sinha1, Christina Girgis1
1Center for Novel Therapeutics, Moores Cancer Center, Department of Medicine, University of California, San Diego, CA 92037, USA.
Biomedicines
|July 27, 2024
概括
以前认为一种变异性转录 (ROR1) 编码细胞质ROR1蛋白. 然而,这项研究表明,ROR1缺乏翻译启动,这意味着它不能产生蛋白质,并且在癌症中无法检测到.
科学领域:
- 分子生物学分子生物学
- 癌症研究 癌症研究
- 生物信息学是一种生物信息学.
背景情况:
- 受体氨酸激酶类孤儿受体1 (ROR1) 与癌症有关.
- 一个变异的转录,ROR1,被建议编码一个细胞质ROR1蛋白.
- 这种变异被认为在瘤和正常细胞中占主导地位.
研究的目的:
- 为了研究ROR1变体转录的蛋白质编码潜力.
- 确定ROR1表达是否有助于癌细胞中可检测的ROR1蛋白.
主要方法:
- 病毒载体被生成以表达全长的ROR1或ROR1.1.
- 细胞表达的ROR1蛋白被分析通过西方涂抹和流动细胞计.
- 对GTEx和TCGA数据集进行了生物信息分析.
主要成果:
- 表达ROR1的细胞表现出表面和细胞质ROR1蛋白.
- 表达ROR1的细胞既没有表达表面ROR1蛋白,也没有表达细胞质ROR1蛋白.
- ROR1缺乏框架内启动密码子,阻止其转化为蛋白质.
结论:
- 这种ROR1变体的转录不能转化为ROR1蛋白.
- 癌症中ROR1蛋白的检测不能归因于ROR1的表达.
- 之前关于ROR1在癌症蛋白检测中的作用的假设是不正确的.
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