产胶植物橡胶转移酶的研究进展

Research Advances in Rubber Transferases of the Rubber-Producing Plants

天然橡胶合成中,橡胶转移酶催化异戊二烯焦磷酸的多聚化过程,这一过程对天然橡胶的品质及产量至关重要。橡胶转移酶及其性质、橡胶生物合成分子机理及橡胶的分子量大小决定机制是亟待解决的重要科学问题。本文介绍了以巴西橡胶树为主的产胶植物橡胶转移酶的性质和生物学功能,对橡胶转移酶的分离与鉴定及其活性调节等研究进展进行了综述。

Rubber transferase, a c/s-prenyltransferase catalyzing the incorporation of isopentenyl pyrophosphate into rubber molecules, is critical to the quality and the yield of natural rubber. However, the identity of the rubber transferase, and the mechanisms related to polymerization and the determination of the molecular mass of natural rubber remain equivocal. This article provides an overview of the rubber transferases of Hevea brasiliensis and other rubber-producing plants from aspects of the biological function, the purification, the characterization, and the regulation of the catalytic activity.