Amino acid sequence alignment of the MSP1b proteins encoded by the Florida strain (designated MSP1bF1 through -F4) and the Havana, Cuba, strain (designated MSP1bC1 and -C2). Areas of amino acid substitutions, insertions, and deletions are indicated by a white background, and conserved substitutions have a shaded background. Identical amino acids are represented by white letters on a black background. Dots indicate deletions.