5'端帽(five prime cap)是在真核生物中信使RNA(mRNA)的5'端经修改后形成的的双核苷酸端点。5'加帽的过程对创建成熟的mRNA作翻译非常重要。加帽确保了mRNA在蛋白质生物合成中进行转译的稳定性,并在细胞核中是高度调控的过程。
英语百科
Five-prime cap 5'端帽
(重定向自Rna caps)
In molecular biology, the five-prime cap (5′ cap) is a specially altered nucleotide on the 5′ end of some eukaryotic primary transcripts such as precursor messenger RNA. This process, known as mRNA capping, is highly regulated and vital in the creation of stable and mature messenger RNA able to undergo translation during protein synthesis. Mitochondrial and chloroplast mRNA are not capped.