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.
Amino acid alignment of conserved motifs I and II (15, 19) in the MPH(2′) and APH family. a. a., amino acid. Superscripts: b, MPH(2′); c, APH; d, deletion of an amino acid; e, insertion of an amino acid. Aspartic acid residues (D) are in boldface.
