16.Explain how secondary, tertiary, and quaternary levels of structure depend on primary structure. Predict where amino acid residues with nonpolar r-groups would be found within the overall structure of a protein such as chymotrypsin.

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 16.Explain how secondary, tertiary, and quaternary levels of structure depend on primary structure. Predict where amino acid residues with nonpolar r-groups would be found within the overall structure of a protein such as chymotrypsin.

answers:

Explain how secondary, tertiary, and quaternary levels of structure depend on primary structure.
Protein structure is hierarchical: Secondary, tertiary, and quaternary structure all depend on bonds and other interactions between amino acids that are covalently linked in a chain in a specific order (primary structure).

The primary structure of a protein is defined by the sequence of amino acid residues. It is this sequence that lays the foundation for all other higher levels of structures in a protein. Secondary structure is defined by the hydrogen bonding between the carboxyl and amino backbone of the amino acids. Tertiary is defined by amino acid side chain interactions. Finally, quaternary structure is defined by the assembly of subunits of a protein into the overall larger protein structure.


Predict where amino acid residues with nonpolar R-groups would be found within the overall structure of a folded globular protein such as chymotrypsin
Nonpolar amino acid residues would be found in the interior of a globular protein like trypsin, grouped with other nonpolar residues due to hydrophobic interactions.


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