👉 In immunology, opsonins are a group of proteins that play a crucial role in recognizing and neutralizing pathogens. They are also involved in the transport of antigens to lymphocytes for recognition. The specific protein components of opsonins include: 1. Oligomeric ApoC3: This is composed of two types of antibodies, C1q and C4b, which bind to antigens on host cells. 2. Oligomeric ApoC6: Similar