Multiple choice Which of the following does not regulate L-lysine microbial synthesis? Aspartate kinase Dihydrodipicolinate synthase Phosphoenol pyruvate carboxylase Succinylase Reveal answer Fill a bubble to check yourself C Correct answer Explanation Phosphoenol pyruvate carboxylase regulates the production of L-glutamate by converting phosphoenol pyruvate to oxaloacetate, which is required for glutamic acid synthesis.