Glutaminum
L-glutaminum sive L-glutamina (abbreviatura IUPAC:Gln vel Q) est α-aminoacidum formulae chemicae HOOC-CH(NH2)-(CH2)2-CO-NH2 et simul unum aminoacidorum viginti formationis proteinorum in organismis.

 Neurotransmissor

Notae 

G
Carboxamida