
The Three-dimentional Structure of Proteins

Key Principles Protein structures are stabilized by non-covalent interactions and forces. Protein segments can adopt regular secondary structures such as the alpha helix and the beta conformation. Tertiary structures is determined by amino acid sequence. The 3D structures of proteins can be determined


Overview of Protein Structure





Proteins are Linear Polymers of Amino Acids Peptide formation is the creation of an amide bond between the carboxyl group of one amino acid and the amino group of another amino acid

The peptide bond is planar In a pair of linked amino acids, six atoms (Cα, C, O, N, H, and Cα) lie in a plane. Side chains are shown as green balls