FIG. 1.
(A) Cartoon representation of the crystal structure of APH(3′)-IIIa in complex with AMPPNP and butirosin A. Magnesium ions are shown in black. (B) Simulated annealing Fo − Fc omit map for AMPPNP, Mg ions, and butirosin A, contoured at 2.0 σ.
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.