title: Opsonic activity in human serum deficient in C2.
mesh_terms: D000818:Animals; D003165:Complement System Proteins / Q000032:analysis*; D004926:Escherichia coli / Q000276:immunology; D006801:Humans; D007106:Immune Sera; D007122:Immunoelectrophoresis; D007153:Immunologic Deficiency Syndromes / Q000276:immunology*; D009895:Opsonin Proteins / Q000032:analysis*; D010587:Phagocytosis; D011511:Proteus / Q000276:immunology; D011513:Proteus mirabilis / Q000276:immunology; D012911:Snakes; D013210:Staphylococcus / Q000276:immunology; D013296:Streptococcus pneumoniae / Q000276:immunology; D014688:Venoms
chemical_list: D007106:Immune Sera; D009895:Opsonin Proteins; D014688:Venoms; D003165:Complement System Proteins