It is well-known that tyrosinase of Bacillus Megaterium bacteria is an attractive target for the development of antimicrobials or antibiotic adjuvants for the treatment of hyperpigmentation because of its similarity (33.5%) to the human enzyme [97-100].
PDB ID 4j6u is for tyrosinase from Bacillus megaterium, not the bacillus megatherium crystal structure.