选择性剪接(alternative sp lic ing)又称变位剪接或可变剪接,指的是从一个mRNA前体通过选择不同的剪接位点组合产生不同的mRNA剪接变异体的过程。该过程是生物界普遍存在的现象,它在机体发育、组织特异性表达、疾病发生和发展等方面起重要作用,是生物体内一种基本且重要的调控 Alternative splicing, also known as alternative splicing or alternative splicing, refers to the process of generating different mRNA splicing variants from a pre-mRNA by selecting different splice sites. This process is a common phenomenon in the biological world. It plays an important role in body development, tissue-specific expression, disease occurrence and development, and is a basic and important regulation in the organism