What is the tertiary structure of a protein molecule? What are the types of chemical bonds that stabilize the tertiary structure? Which of them are the most durable?
The tertiary structure is the spatial configuration of the protein in the form of compact globules.
The bonds stabilizing the tertiary structure of the protein. In the stabilization of the tertiary structure, the bonds between the side radicals of amino acids play a role.
C O N N The hydrogen bond between amino acids,
S S Disulfide bond between sulfur-containing cysteine radicals
COO – H3N + Ionic bond between charged groups of the polypeptide chain.
R R Hydrophobic bond between nonpolar amino acid radicals.
Peptide bond – The peptide bond itself is partially double due to lactim-lactam tautomerism. Therefore, rotation around it is impossible, and she herself is one and a half times stronger than the usual covalent one.
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