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) Secondary structure of the MS2 RNA hairpin. The residue numbering corresponds to that in crystal structures of coat protein:RNA complexes.27 (B) Affinity changes (KD ratios in logarithmic scale) measured for RNA hairpins with single PS2 modifications at the indicated phosphates.
