Protein Tertiary Structure and Interactions Quiz

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Which type of interaction is most likely responsible for the disruption of the tertiary structure of a protein by heavy metal ions?

Hydrophobic interactions

Covalent bonds

Hydrogen bonds

Salt bridges and coordinate bonds (correct)

What is the primary mechanism by which chaotropic agents like urea and guanidine denature proteins?

Disrupting hydrophobic interactions

Altering the hydrogen-bonding network of water (correct)

Breaking covalent bonds

Forming coordinate bonds with the protein

Which post-translational modification is most likely to serve as a membrane anchor for a protein?

N-glycosylation

Myristoylation (correct)

Phosphorylation

O-glycosylation

Which of the following is the LEAST likely to disrupt the tertiary structure of a protein?

Heating Signup and view all the answers

Which post-translational modification is most likely to be found on secreted or membrane proteins?

O-glycosylation Signup and view all the answers

Which type of oligomeric protein is formed by multiple, identical polypeptide chains?

Homomer Signup and view all the answers

How does proteolytic cleavage of a proprotein contribute to the function of the mature protein?

It targets the mature protein to a specific organelle Signup and view all the answers

Which post-translational modification is most likely to involve the covalent attachment of a fatty acid to a protein?

Palmitoylation Signup and view all the answers

Which type of oligomeric protein is most likely to exhibit cooperative binding behavior?

Homomeric proteins Signup and view all the answers

Which post-translational modification is most likely to involve the covalent attachment of a carbohydrate moiety to a protein?

N-glycosylation Signup and view all the answers

Protein Tertiary Structure and Interactions Quiz

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Questions and Answers

Which type of interaction is most likely responsible for the disruption of the tertiary structure of a protein by heavy metal ions?

What is the primary mechanism by which chaotropic agents like urea and guanidine denature proteins?

Which post-translational modification is most likely to serve as a membrane anchor for a protein?

Which of the following is the LEAST likely to disrupt the tertiary structure of a protein?

Which post-translational modification is most likely to be found on secreted or membrane proteins?

Which type of oligomeric protein is formed by multiple, identical polypeptide chains?

How does proteolytic cleavage of a proprotein contribute to the function of the mature protein?

Which post-translational modification is most likely to involve the covalent attachment of a fatty acid to a protein?

Which type of oligomeric protein is most likely to exhibit cooperative binding behavior?

Which post-translational modification is most likely to involve the covalent attachment of a carbohydrate moiety to a protein?

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