Protein Structure

Practice Questions

Biochemistry › Protein Structure

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1

Suppose that the active site of an enzyme contains amino acid residues at the following positions:

Residue - Arginine

Residue - Valine

Residue - Glutamate

Residue - Glycine

Which of the following amino acid substitutions would be least likely to affect the activity of this enzyme?

2

Which proteins are generally water-soluble?

3

An O-linked glycoprotein has a sugar attached to an oxygen atom on what amino acid(s)?

4

Amino acids are connected via __________ bonds, which occur between the carboxyl group of one amino acid and the amino group of another.

5

Amino acids are connected via __________ bonds, which occur between the carboxyl group of one amino acid and the amino group of another.

6

An O-linked glycoprotein has a sugar attached to an oxygen atom on what amino acid(s)?

7

Which proteins are generally water-soluble?

8

Suppose that the active site of an enzyme contains amino acid residues at the following positions:

Residue - Arginine

Residue - Valine

Residue - Glutamate

Residue - Glycine

Which of the following amino acid substitutions would be least likely to affect the activity of this enzyme?

9

What accounts for peptide bond planarity within a polypeptide?

10

What accounts for peptide bond planarity within a polypeptide?

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