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.
Stable isotope labeled DNA sequences probed by solution NMR spectroscopy. (A) HIV-1 polypurine tract (PPT) DNAs 30–32. (B) HIV-1 cTAR DNA constructs: mini-cTAR DNA 33 and full-length cTAR DNA 34. (C) G-quadruplex DNAs 35 and 36. (D) Holliday fourway-junction mimics 37 and 38. Orange letters indicate 13C labeled residues.
