title: Prophenoloxidase activating system and melanization - a recognition mechanism of arthropods? A review.
mesh_terms: D000818:Animals; D001181:Arthropods / Q000276:immunology* / Q000378:metabolism; D004156:Catechol Oxidase / Q000276:immunology*; D004792:Enzyme Precursors; D006458:Hemolymph / Q000276:immunology / Q000378:metabolism; D007109:Immunity; D008543:Melanins / Q000096:biosynthesis / Q000276:immunology*
chemical_list: D004792:Enzyme Precursors; D008543:Melanins; D004156:Catechol Oxidase