Tertiary and quaternary structures of ​proteins Forces stabilizing tertiary structure​

Tertiary and quaternary structures of ​proteins Forces stabilizing tertiary structure​

January 4, 2022

Tertiary and quaternary structures of ​proteins Forces stabilizing tertiary structure​

Tertiary structure refers to the complete three-dimensional structure of the polypeptide units of a given protein.

  • Tertiary structure is formed due to interactions between side chain R group of amino acid residues present in the proteins.
  • Nearly all of the polar, hydrophilic R groups are located in the surface, where they may interact with water
  • The nonpolar, hydropobic R groups are usually burried inside the protein molecule
  • In tertiary structure of proteins, covalent disulfide bonds form between closely aligned cysteine residues form the unique amino acid cystine.
  • Tertiary structure is stabilized by non-covalent interactions such as hydrogen bonding, hydrophobic interactions,  Van der Waal’s interactions and electrostatic interactions.
  • Tertiary structure contains motifs and domains.

One response to “Tertiary and quaternary structures of ​proteins Forces stabilizing tertiary structure​”

  1. […] Protein Structure II​: Tertiary and quaternary structures of ​proteins; Forces stabilizing terti… […]

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