Fig. 2From: An immunoinformatics approach to epitope-based vaccine design against PspA in Streptococcus pneumoniaePhylogenetic relationship among the studied protein (marked with ▲ symbol), reference protein (marked with ♦ symbol), and other proteins obtained from nonredundant database by BlastP search. The evolutionary distances were computed using the Poisson correction method and are in the units of the number of amino acid substitutions per siteBack to article page