1 Table of Contents: “...Primary protein structure -- X-ray diffraction and protein 3D structure -- Interactions within...”

2 Table of Contents: “...Protein secondary structures: alpha helix, beta-sheet, turns, and collagen -- Collagen properties...”

3 Table of Contents: “... structural role -- Glycosaminoglycans & proteoglycans -- Carbohydrate recognition role...”

4 Subjects: “...Protein Structure, Quaternary...”

5 Table of Contents: “...Multiple-folds -- Stable quaternary structure -- Transient quaternary structure -- Binding...”