An incompatibility in the reaction of the second component of human complement with the fourth component of guinea-pig complement.
D000818:Animals; D003165:Complement System Proteins / Q000302:isolation & purification; D004912:Erythrocytes / Q000276:immunology; D006168:Guinea Pigs; D006461:Hemolysis; D006801:Humans; D007120:Immunochemistry; D066298:In Vitro Techniques; D007700:Kinetics; D012756:Sheep
D003165:Complement System Proteins