Capping by branching: a new ribozyme makes tiny lariats

Science. 2005 Sep 2;309(5740):1530-1. doi: 10.1126/science.1117957.


The number of naturally occurring RNA enzymes has just been expanded by the discovery of a new branching ribozyme. But this ribozyme has unexpected relatives: group I introns.

Publication types

  • Comment
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Introns*
  • Nucleic Acid Conformation
  • RNA Caps / chemistry*
  • RNA Splicing*
  • RNA, Catalytic / chemistry
  • RNA, Catalytic / metabolism*


  • GIR1 ribozyme
  • RNA Caps
  • RNA, Catalytic