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.
Resonance assignments of s2 and s4 in K+ solution at 25°C. (a and c) Imino protons of s2 and s4, respectively, were assigned by site-specific 2% 15N-labeling. (b and d) H8 protons of s2 and s4, respectively, were assigned by through-bond correlations between imino and H8 protons via 13C5 at natural abundance, using long-range J couplings shown as insert in (d).
