4: The Three-Dimensional Structure of Proteins Last updated Jan 6, 2023 Save as PDF 3.2: Protein Purification 4.1: Secondary Structure and Loops Page ID102251 Henry Jakubowski and Patricia FlattCollege of St. Benedict/St. John's University and Western Oregon University ( \newcommand{\kernel}{\mathrm{null}\,}\) 4.1: Secondary Structure and Loops4.2: Tertiary and Quaternary Structures4.3: Secondary Structural Motifs and Domains4.4: Protein with Alpha, Alpha-Beta, Beta and Little Secondary Structure4.5: Protein Folding and Unfolding (Denaturation) - Dynamics4.6: Protein Aggregates - Amyloids, Prions and Intracellular Granules4.7: Biomolecular Visualization - Conceptions and Misconceptions