Fig. 1.

Elements of the MEGA-MD user interface for interactively specifying variants: (A) the Gene Search tab of the Mutation Explorer displaying a list of genes or proteins to select from. (B) Sequence Data Explorer with an amino acid position selected (highlighted) and drop-down menu for specifying mutant amino acid shown. The Sequence Data Explorer window contains several utilities such as tools for computing compositional characteristics and exporting the alignment to several widely used formats, including FastA, Nexus and MEGA