For ten points, what is this amino acid most known for appearing in MSG?
This amino acid, which has the second-lowest isoelectric point, can function as a neurotransmitter and, in the central nervous system, is the most common excitatory neurotransmitter, and can be converted to a more familiar neurotransmitter, GABA. But it is even more familiar when it is combined with sodium to form a common, if controversial, food additive. For ten points, what is this amino acid most known for appearing in MSG?
This amino acid, which has the second-lowest isoelectric point, can function as a neurotransmitter and, in the central nervous system, is the most common excitatory neurotransmitter, and can be converted to a more familiar neurotransmitter, GABA.
{glutamic acid} or {glutamate} (but not {glutamine}, which is different)