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Sialic acid is a general term for a family of nine-carbon carboxylated carbohydrates, with N-acetylneuraminic acid (Neu5Ac) being the most common member. These molecules are typically found at the terminal positions of glycans, which are carbohydrate chains attached to proteins and lipids. Sialic acids play crucial roles in a wide range of biological processes.
In cell-cell recognition, sialic acids act as key molecular interfaces. They are involved in the adhesion of
Sialic acids are also important for the immune system. They can modulate immune responses by influencing the
Furthermore, sialic acids are found in high concentrations in the brain and are thought to be important