The step in the biosynthesis of type I collagen which takes place after procollagen secretion from the cell is
A) glycosylation of hydroxyproline.
B) hydroxylation of lysine.
C) formation of disulfide crosslinks.
D) oxidation of lysine.
E) formation of triple helix.

Question

Quizplus · Accepted Answer

After procollagen is secreted from the cell, lysine residues are oxidized to form aldehydes, which are crucial for the cross-linking of collagen fibers in the extracellular space.

The Step in the Biosynthesis of Type I Collagen Which