During the folding of a tertiary protein, a covalent bond forms between the side chains of two amino acids. Which amino acid is involved?
Q1. During the folding of a tertiary protein, a covalent bond forms between the side chains of two amino acids. Which amino acid is involved?
Answer: Cysteine
Explanation: Cysteine contains a sulfur atom in its R-group, allowing it to form disulfide bridges. Methionine also has sulfur but doesn't form these bridges as easily.