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Biotin

(Science: biochemistry) a prosthetic group for carboxylase enzymes. Important in fatty acid biosynthesis and catabolism and has found widespread use as a covalent label for macromolecules which may then be detected by high affinity binding of labelled avidin or streptavidin. Essential growth factor for many cells. A B vitamin that aids in body growth.A vitamin, deficiency symptoms range from dermatitis to intestinal problems.