《英文msh詞典》RNA Caps
[主題詞] RNA Caps
[入口詞] 5' Capped RNA
[入口詞] 5' mRNA Cap Structure
[入口詞] Caps,RNA
[入口詞] RNA,5' Capped
[中文釋義] RNA帽結(jié)構(gòu)
[英文釋義] Nucleic acid structures found on the 5' end of eukaryotic cellular and viral messenger RNA and some heterogeneous nuclear RNAs. These structures,which are positively charged,protect the above specified RNAs at their termini against attack by phosphatases and other nucleases and promote mRNA function at the level of initiation of translation. Analogs of the RNA caps (RNA CAP ANALOGS),which lack the positive charge,inhibit the initiation of protein synthesis.