HIV (Human immunodefficiencyvirus) is composed two copies of the single stranded RNA, 5 types of stuctural proteins, 3 types of viral enzymes, and 7 types of accessory proteins along with some proteins taken from the host cell. Its central capsule of the oval shape is surrounded by the round vesicle made of the lipid bilayer (=elementary cell membrane). Structural proteins: The most prominent are the envelope proteins gp120 and gp41 that "grow" like trees from the outer lipid bilayer membrane. They bind the HIV vesicle to the receptors on the membrane of the host cell. They bear a lot of carbohydrates on the outer sides that make them difficult to be recognized by the antibodies. Matrix proteins form the trimers and are inserted into the inner side of the lipid bilayer membrane and form the inner coating of the outer viral vesicle.
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Kids Planets Free
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