Question

write the Tertiary structure of proteins ​

Answer 1

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Protein tertiary structure is the three dimensional shape of a protein. The tertiary structure will have a single polypeptide chain "backbone" with one or more protein secondary structures, the protein domains. Amino acid side chains may interact and bond in a number of ways.

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Answer 2

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The three-dimensional shape adopted by the entire polypeptide chain of a protein is called its tertiary structure. It is the result of folding of the chain in a particular manner that the structure is itself stabilized and also has attractive interaction with the aqueous environment of the cell. The globular and fibrous proteins represent two major molecular shapes resulting from the tertiary structure. The forces that stabilize a particular tertiary structure include hydrogen bonding, dipole-dipole attraction (due to polar bonds in the side chains), electrostatic attraction (due to the ionic groups like -COO , NH3⊕ in the side chain) and also London dispersion forces. Finally,disulfide bonds formed by oxidation of nearby -SH groups (in cysteine residues) are the covalent bonds which stabilize the tertiary structure