1. Page 1 Immunology Proteins —by Creative BioMart

2. Page 2 Immunology is a broad branch of biomedical science that covers the study of all aspects of the immune system in all organisms. It deals with the physiological functioning of the immune system in states of both health and disease; malfunctions of the immune system in immunological disorders (autoimmune diseases, hypersensitivities, immune deficiency, transplant rejection); the physical, chemical and physiological characteristics of the components of the immune system in vitro, in situ, and in vivo. Immunology has applications in several disciplines of science, and as such is further divided.

3. Page 3 Immune System Diseases Protein The immune system is a highly developed system, consisting of complex components such as lymph, or lymphatic, organs like spleen and thymus and several kinds of immune system cells. The function of immune system is to find and kill invaders, including cancer cells. However, once your immune system doesn't function the way normally, it is called an immune system disorder and may reduce some diseases. There are several types of immune system disease: Primary immune deficiency, in this case, one person is born with a weak immune system. Acquired immune deficiency, in this case, a disease weakens your immune system. The most famous are AIDS caused by HIV infection.

4. Page 4 Immunoglobulins Protein Immunoglobulin, also known as antibody, is large, Y-shape glycoprotein molecules produced by plasma cells in identification and response to an immunogen such as bacteria and viruses. Immunoglobulin or antibodies play vital roles in immune defenses. Without medical intervention, individuals born with antibody deficiencies succumb to infections and die early in life. Even before the adaptive immune system has developed and produced antibodies of its own, fetuses and infants receive protection from maternal antibodies transferred across the placenta. At mucosal surfaces, antibodies are important for blocking the initial entry of bacteria and viruses into the body. If such a barrier is bypassed, then antibodies are employed in systemic defense. In addition to their role in killing pathogens and neutralizing viruses and toxins, antibodies coordinate the immune response by acting as adaptor molecules that bring antigens together with cells and proteins of the innate immune system. These interactions are made possible by the unique structure of antibodies.

5. Page 5 Innate Immunity Protein The immunity of more complex organisms is distinguished by the development of a proper immune system consisting of specialized cells and tissues dedicated to controlling pathogens, toxins and malignancies. In the lower organisms these defenses are limited to innate immunity, which is established prior to the encounter with a pathogen and does not require education of the immune system to function. Innate immunity has been highly conserved throughout evolution, and entails specialized cells and molecules that recognize and target foreign structural components common to different classes of pathogens. For example, toll-like receptors are molecules expressed by cells to detect pathogen components, such as bacterial cell wall molecules and DNA, and are found in species from insects to vertebrates.

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