system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which of the following amino acids have side chains that are negatively charged under physiological conditions?
assistant
The correct answer is  The side chains of the acidic amino acids, aspaic acid and glutamic acid, are negatively charged above pH 3; in their ionized state, they are often referred to as aspaate and glutamate. Asparagine and glutamine are, respectively, the amides of aspaic acid and glutamic acid. Ref: Voet Fundamentals of Biochemistry 4th Edition Pg no 82.