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.
(A) Superimposed (S)-GNA T and TNA T inside RNA, demonstrating that GNA with the thymine base flipped (i.e., matching the TNA base orientation) results in a clash with the adjacent base (suboptimal stacking). (B) Crystal structure of RNA with an incorporated (S)-GNA T residue that displays the rotated orientation of the thymine base.
