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microRNAs(miRNAs)是一类长约23个核苷酸的非编码小RNA,通过其诱导的沉默复合物(miRNA-induced silencing complex,miRISC)在转录水平特异性识别靶mRNA进而使其降解或抑制翻译而发挥功能[1]。2004年Pfeffer等[2]在研究Epstei-Barr病毒(EBV)感染的细胞中首次发现病毒编码的miRNAs(miR-BHRF1-1、miR-BHRF1-2、miR-BHRF1-3和miR-BART1、
MicroRNAs (miRNAs) are a class of non-coding small RNAs of about 23 nucleotides that specifically recognize target mRNAs at the transcriptional level by their miRNA-induced silencing complex (miRISC) to degrade or inhibit them Translation and function [1]. In 2004, Pfeffer et al [2] first found virus-encoded miRNAs (miR-BHRF1-1, miR-BHRF1-2, miR-BHRF1-3 and miR-BART1 in cells infected with Epstein-Barr virus (EBV)