Phylogenetic relationships of Streptomyces ChiJ and related proteins. Phylogenetic analyses were performed using maximum likelihood methods as implemented in PhyML-aLRT, based on an alignment of chitinase amino acid sequences. Branch support values (approximate likelihood-ratio test probabilities (> 0.95) / bootstrap proportions (> 70%)) are associated with nodes. The bar marker indicate the number of amino acid substitutions per 100 amino acids. Streptomyces ChiA, ChiB, ChiJ and fungal ChiJ orthologs are indicated. Sequence identifiers include protein name or locus ID.