Proteins can have hydrogen bonds between every fourth peptide bond, with hydrogen-bond plane parallel to helical axis and side chains perpendicular to helical axis {alpha helix, protein structure}. Big or charged amino acids disrupt alpha helix. Proline stops alpha helix, because it is imino acid and does not make regular peptide bond.
Physical Sciences>Chemistry>Biochemistry>Protein>Structure
5-Chemistry-Biochemistry-Protein-Structure
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Date Modified: 2022.0224