A haemolytically non-active C4 gene product.
D000818:Animals; D001789:Blood Group Antigens / Q000235:genetics; D003181:Complement C4 / Q000172:deficiency / Q000235:genetics*; D006168:Guinea Pigs; D006680:HLA Antigens / Q000235:genetics; D006238:Haploidy; D006462:Hemolytic Plaque Technique; D006801:Humans; D014176:Protein Biosynthesis
D001789:Blood Group Antigens; D003181:Complement C4; D006680:HLA Antigens