Phylogeny of six S. coelicolor LPMO10s and a selection of other LPMO10s, selected on the basis of literature data documenting up-regulation during growth on biomass (19), binding to chitin (26, 33, 34), synergism with glycoside hydrolases (35), and/or substrate cleavage and oxidation (5, 16, 20, 25). Proteins for which substrate degradation and oxidation has been demonstrated are labeled with an asterisk.