Biochemical characterization of serine racemases from major mammalian lineages.
Serine racemase (SR) catalyzes the interconversion of l-serine and d-serine and can also catalyze β-elimination of serine to pyruvate and ammonia. In mammals, however, the presence and enzymatic function of SR have been reported mainly in mouse, rat, and human. It is therefore unclear whether functional SR is broadly c...