Discrete Structure of an RNA Folding Intermediate Revealed by Cryo-electron Microscopy

作者:Baird Nathan J; Ludtke Steven J; Khan Htet; Chiu Wah; Pan Tao*; Sosnick Tobin R
来源:Journal of the American Chemical Society, 2010, 132(46): 16352-16353.
DOI:10.1021/ja107492b

摘要

RNA folding occurs via a series of transitions between metastable intermediate states. It is unknown whether folding intermediates are discrete structures folding along defined pathways or heterogeneous ensembles folding along broad landscapes. We use cryo-electron microscopy and single-particle image reconstruction to determine the structure of the major folding intermediate of the specificity domain of a ribonuclease P ribozyme. Our results support the existence of a discrete conformation for this folding intermediate.

  • 出版日期2010-11-24