Keratan sulfate (KS), also called keratosulfate, is any of several sulfatedglycosaminoglycans (structural carbohydrates) that have been found especially in the cornea, cartilage, and bone. It is a large, highly hydrated molecule which in joints can act as a cushion.
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Keratan sulfate /ker·a·tan sul·fate/ either of two glycosaminoglycans, consisting of repeating disaccharide units of N -acetylglucosamine and [more]Keratan sulfate - Community and Resources