MBB 222 Study Guide - Final Guide: Humoral Immunity, Immunoglobulin Domain, Immunoglobulin G

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The immune response features a specialized array of cells and proteins including a variety of white blood cells known as leukocytes, macrophages and lymphocytes. The immune response consists of 2 complementary systems: Humoral immune system: bacterial infections, extracellular viruses (anything located in body fluids) Cellular immune system: this system destroys host cells infected by viruses and also destroys some foreign tissues/parasites. U6-08 first antibody / immunoglobulin (ig) vs. antigen. Antibodies are soluble proteins located in the humoral immune system, which bind bacteria, viruses or large molecules and marks them for destruction. Antigens are any foreign molecule or pathogen that are capable of inducing an immune response. Ex. ) viruses, bacterial cell walls, individual proteins, macromolecule. Antibodies are very specific to certain antigens. This specificity can be used to identify proteins and their locations in the cell, to purify proteins, quantify them and also identify protein binding partners.

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