Fig. 4

Phylogenetic tree of IgM protease molecules of group A strains shown in Fig. 3. The sequences were aligned using Geneious global alignment with free end gaps (Geneious prime software, version 2021.1.1). This alignment was used to build a phylogenetic tree using the tree building feature of Geneious (tree build method: PhyML; substitution model: le Gascuel)