Compounds whose hydroxyl group of sugar is replaced by amino group
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- Chinese name
- Aminosugar
- Foreign name
- aminosugar
- Interpretation
- Compounds whose hydroxyl group of sugar is replaced by amino group
- Type
- chemical compound
Citation explanation
The hydroxyl group of sugar is the general name of the compound substituted by amino group. The most common biological components are Glucosamine And galactosamine, which is a compound and neuraminic acid whose 2-hydroxy group of hexose is replaced by amino group. It is a 9-carbon sugar with amino group at position 5, but has pyruvic acid structure from position 1 to position 3. If this part is removed, it will be consistent with the structure of mannosamine with amino group at position 2. In contrast, there are also quite a number of natural amino sugars other than 2-position, most of which exist as nucleopolysaccharides, glycosides or antibiotics produced by microorganisms. For example, as sugar components Escherichia coli Or 4-amino-4.6-2-deoxy-D-glucose (viosamine) in the nuclear polysaccharide produced by Chromobacterium Streptomyces (Stre ptomyces) Kanamycin It contains 6-amino-6-deoxy-D-glucose, and 3-amino-3-deoxy-D-ribose in xanthomycin. In general, aminosaccharides are formed by the amino transfer of ammonia or glutamine at the stage of phosphate or sugar nucleotide under the action of their specific biological synthetases. 
