FIG. 2.

The MSA-2a/b proteins are diverse and have a hypervariable region in the carboxy half of the molecule. An alignment similarity plot of all examined MSA-2a/b proteins is shown. Regions of relative high identity are indicated by an overlying bar with sequence information and composite percent identity provided. Dashes in sequences indicate nonconserved residues. A schematic of MSA-2a/b molecular organization based on sequence variation and known function is shown below. Protein residues noted at the junction of sequence segments are initiating residues.