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) Crystals of OprM obtained in 100 mM sodium acetate pH 4.5, 6%(w/v) PEG 20 000, 300 mM ammonium citrate, 25–30% glycerol and 0.9% β-OG at 298 K. The protein and reservoir solutions were mixed in the ratio 3:1.5 µl. (b) Crystals of OprN obtained in 100 mM ADA pH 6.5, 0.8 M ammonium sulfate and 0.9% β-OG at 291 K.
