Multiple choice

Which is the only glycosaminoglycan that is exclusively nonsulfated?

Glycosaminoglycans have high degrees of heterogeneity with regards to molecular weight, disaccharide construction and sulfation due to the fact that GAG synthesis, unlike proteins or nucleic acids, is not template driven, and dynamically modulated by processing enzymes. Members of the glycosaminoglycan family vary in the type of hexosamine, hexose or hexuronic acid unit they contain.

  1. Hyaluronan

  2. Heparin

  3. Keratan sulfate

  4. Heparan sulfate

  5. Dermatan sulfate
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A Correct answer
Explanation

Hyaluronan (also called hyaluronic acid or hyaluronate or HA) is an anionic, nonsulfated glycosaminoglycan distributed widely throughout  connective, epithelial and neural tissue.

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