Peptide Bond, Phi/Psi Angles and the Ramachandran Plot | Stryer Biochemistry Chapter 2 Part 2

Stryer Biochemistry (Berg, Tymoczko, Gatto), Chapter 2: Protein Composition and Structure, pages 41 to 46: section 2.3, primary structure, peptide bond, disulfide bonds, Sanger and insulin, planarity, cis/trans, phi and psi, Ramachandran plot, Figures 2.12 to 2.21. Every topic explained at book level and in simple words. For BS, MSc and MBBS students. Timestamps 0:00 Introduction 0:42 Figure 2.12: forming a peptide bond 2:08 Figure 2.13: sequences have direction 3:27 Figure 2.14: backbone and side chains 4:26 Size of proteins and daltons 5:34 Figure 2.15: disulfide bonds 6:52 Figure 2.16: Sanger and insulin 8:30 Why knowing sequences matters 9:57 Figure 2.17: the planar peptide bond 11:27 Peptide bond resonance 12:17 Figure 2.18: trans and cis 13:09 Figure 2.19: the proline exception 14:03 Figure 2.20: phi and psi angles 15:34 Figure 2.21: the Ramachandran plot 17:00 Why restriction allows folding 18:03 Self-check question 18:51 Summary of Part 2 Figures and tables: Stryer Biochemistry, used for education. #Biochemistry #Stryer #Proteins