C-terminal propeptide (procollagen)/ Covalent Cross links/ C vitamin/ Connective tissue/ Cartilage/ Chondroblasts/ Copper Cofactor (Covalent Cross linking)

Outside the cell is where collagen normally functions/ Osteoblasts/ Osteogenesis imperfecta

Lysyl hydroxylase/ Lysyl oxidase (oxidatively deaminates lysyl and hydroxylysyl residues to form collagen cross links, last biosynthesis step)

Long triple helical fibers/ Ligaments

Alpha chains/ Attached by H bonds form triple helix/ Ascorbate for hydroxylation of lysyl and prolyl residues of pro-Alpha chains (postranslational modification)

Gly in every third position/ Glycosylation of hydroxyl group of hydroxylysine with Glucose and Galactose; GOlgi allows procollagen to GO outside of cell