Which of the following represents an example of a proteoglycan?
A)attachment of several molecules of heparin to the peptide antithrombin III
B)attachment of a Gal-β(1,3)-GalNAc disaccharide to the fish antifreeze protein
C)attachment of a small oligosaccharide to an immunoglobulin
D)attachment of a small antigenic determinant to a membrane-bound protein of a cell

Question

Quizplus · Accepted Answer

Proteoglycans are proteins that are heavily glycosylated, often with glycosaminoglycans (GAGs) like heparin. The attachment of several molecules of heparin to the peptide antithrombin III is an example of a proteoglycan because it involves the attachment of GAGs to a core protein.

Which of the Following Represents an Example of a Proteoglycan