Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The guanosine nucleophile is in green, the oligonucleotide substrate in red, metal ions in orange, and the ribozyme in blue. The guanosine nucleophile is shown as a stick representation and all other atoms as space filling. Only the central portion of the Azoarcus structural model is shown (3bo3, ref. 41).
