Ribozyme及其进化意义

Ribozyme and lt Significance in Evolution

蛋白质并非细胞中唯一的催化剂。起酶作用的ＲＮＡ（ｒｉｂｏｚｙｍｅ）正不断地被发现。本文说明了ｒｉｂｏｚｙｍｅ概念的确立过程，并对ｒｉｂｏｚｙｍｅ的催化机制、研究进展及其在分子进化上的意义作一概要的讨论。

Proteins are not the only catalysts of cellular reactions,There is a growing list of RNAmolecules acting as enzymes(ribozyme).The discovery of ribozyme is illustrated。The chemical mecha-nisms of RNA catalysts reactions,the progress in ribozyme research,and its signlficance in molecularevolution are discussed。