title: Activation of the complement cascade by a purified component of pigeon dropping extract (PDE1).
mesh_terms: D000818:Animals; D000941:Antigens / Q000302:isolation & purification; D010856:Columbidae / Q000276:immunology*; D003176:Complement C3; D003181:Complement C4; D011415:Complement Factor B / Q000378:metabolism; D003165:Complement System Proteins / Q000378:metabolism*; D005243:Feces; D006801:Humans; D007122:Immunoelectrophoresis; D007328:Insulin / Q000494:pharmacology; D015054:Zymosan / Q000494:pharmacology
chemical_list: D000941:Antigens; D003176:Complement C3; D003181:Complement C4; D007328:Insulin; D003165:Complement System Proteins; D015054:Zymosan; D011415:Complement Factor B