Describe the reaction catalyzed by the enzyme alanine transaminase.

• A. Catalyzes the transfer of an amino group from alanine to a second substrate.
• B. Catalyzes the transfer of an amino group to alanine from an initial substrate.
• C. Catalyzes the transformation of an amino group of alanine to a second substrate
• D. Catalyzes the synthesis of an amino group of alanine to a second substrate

Answer: (A)