Inhibitory neurotransmitter in CNS (Spinal cord):
Glutamate—excitatory neurotransmitter in CNS.
Glycine— Inhibitory neurotransmitter in CNS. Causes hyperpolarization by increasing chloride ion conductance.
GABA— Inhibitory neurotransmitter in brain.
Glutamic acid
Glycine
Histidine
GABA