Which structure is formed by the interactions | vedclass

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(A) The structure of proteins is classified into four levels: $1$. $Primary$ structure: The sequence of amino acids in a polypeptide chain. $2$. $Seco

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Quaternary

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(A) The structure of proteins is classified into four levels: $1$. $Primary$ structure: The sequence of amino acids in a polypeptide chain. $2$. $Secondary$ structure: The folding of the polypeptide chain into shapes like $\alpha$-helices or $\beta$-pleated sheets, stabilized by hydrogen bonds. $3$. $Tertiary$ structure: The overall three-dimensional folding of a single polypeptide chain, stabilized by various interactions like hydrophobic interactions, ionic bonds, and disulfide bridges. $4$. $Quaternary$ structure: This structure is formed when a protein consists of two or more polypeptide chains (subunits) that interact with each other to form a functional protein complex. Therefore, the interactions between different polypeptide chains result in the $Quaternary$ structure.

Which structure is formed by the interactions between different polypeptide chains?

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