Which of the following groups of amino acid residues would be expected to have all of their side chains in a charged state at physiological pH?

Name: Which of the following groups of amino acid residues would be expected to have all of their side chains in a charged state at physiological pH?
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Question

Quizplus · Accepted Answer

Arginine (Arg), Aspartic Acid (Asp), and Lysine (Lys) have side chains that are charged at physiological pH (around 7.4). Arg and Lys are positively charged, while Asp is negatively charged.

Which of the Following Groups of Amino Acid Residues Would