NHs CHo-CH-CO0 OOC-CHg-CH2-CH-COo CH9-CH-COo Glutamate Tetrahydrobiopterin cutan PLP Og HO Tetrahydrobiopterin HO NHs 0OC-CH2-CHg-CH, HO Y-Aminobutyrate Dihydrobiopterin CH2-CH-Coo (GABA) NHs CH,-CH-CO0 →CO LiH- CH2- HO 5-Hydroxytryptophan NHa N NH HO CHo-CH Histidin learns and PLP Dopamine cOz PLP →C O2 H,O HO Dehydroascorbate HO CH2-CH2 N NH CH-CH2 Histamine Norepinephrine adoMet H Many neurotransmitters are CH-CH2 Epinephrine derived from amino acidsMany neurotransmitters are derived from amino acids