Which of the following carbohydrate-modified molecules are enriched in the viscous gel that lines the pulmonary airways?

Question

Quizplus · Accepted Answer

O-linked glycoproteins are enriched in the mucus gel lining the pulmonary airways, as they are a major component of mucins, which are heavily O-glycosylated proteins responsible for the gel-like properties of mucus.  O-linked glycans are important for protein stability, modulation of enzyme activity, receptor-mediated signaling, immune function and immunity, protein-protein interactions, as well as many other functions. Mucin-type O-glycans are also important for binding water and are often found on the outer surfaces of tissues such as the gastrointestinal, urogenital, and respiratory systems. The interaction of water with the mucin-type O-glycans results in the formation of a viscous solution or gel that forms a protective barrier harboring antibacterial properties.

Which of the Following Carbohydrate-Modified Molecules Are Enriched in the Viscous