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.
Overall tertiary structure of the intron in a ribbon representation. Domains and sectors are indicated. (A) View showing the five-way junction and θ–θ′. (B) A 90° rotation from the view shown in A. D5 and the bound exon-like oligonucleotide can be clearly seen. (C) A 90° rotation from the view shown in B displaying the coordination loop, κ, and α–α′.
