The Repeating Disaccharide Units of Glycosaminoglycans (Mucopolysaccharides) Are Composed of a Hexosamine
The repeating disaccharide units of glycosaminoglycans (mucopolysaccharides) are composed of a hexosamine residue and a uronic acid residue. Which is the correct disaccharide unit for chondroitin-6-sulfate, the major component of cartilage proteoglycans?
A) N-acetyl-glucosamine-6-sulfate - glucuronic acid
B) N-acetyl-galactosamine-6-sulfate - glucuronic acid
C) N-acetyl-galactosamine-6-sulfate - iduronic acid
D) N-acetyl-glucosamine-6-sulfate - galacturonic acid
E) N-acetyl-mannosamine-6-sulfate - glucuronic acid
Correct Answer:
Verified
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