- • are Glycine, Proline, and Hydroxy-Proline-rich
- -proline in a protein makes it BEND (as does glycine)
• G-X-Y (X&Y are Pro or OH-Pro)
• Over 20 different types
–Covalent modifications: Sugars (N-linked), Oxidation of Ly, Hydroxylation of Pro, Cross-linking of oxidized Lys to other Lysine, hydroxy-Lysine, and Histidine
- –Number and length of triple-helical segments
- –Flanking or interrupting segments
-made by the ribosome and modified in the ER/golgi...