Representations, Folding, Packing, and Design. Handedness of Crossover Connections in Beta-Sheets. Packing of alpha-helices and Pleated Sheets. Helix to Helix Packing in Proteins. Exploring Molecular Structure.
Protein structure is determined by several factors.
These same factors determine the proteins folding, stability, solubility and purification, function and specificity, etc. The structures of the proteins are determined by the sequence of amino acids. EX1A and KMG . The possible structures of the backbone of the proteins are restricted by the peptide bond. The peptide bond is planar about the C, O, N and Nh atoms.