title: Activation of the complement system by some gram-positive oral bacteria.
mesh_terms: D000190:Actinomyces / Q000378:metabolism*; D000818:Animals; D003181:Complement C4 / Q000172:deficiency / Q000378:metabolism; D003165:Complement System Proteins / Q000378:metabolism*; D006168:Guinea Pigs; D006801:Humans; D007122:Immunoelectrophoresis; D013295:Streptococcus mutans / Q000378:metabolism*; D013298:Streptococcus sanguis / Q000378:metabolism*
chemical_list: D003181:Complement C4; D003165:Complement System Proteins