| PubChem = 738 | ChemSpiderID = 718 | SMILES = N[C@@H](CCC(N)=O)C(O)=O }} | Section2 = | Section3 = }} Glutamine (abbreviated as Gln or Q) 's one of the 20 amino acids encoded by the standard genetic code. Its side chain's an amide formed by replacing the side-chain hydroxyl of glutamic acid with an amine functional group. It can therefore be considered the amide of glutamic acid. Its codons are CAA and CAG. Recent studies have proven its effectiveness in anabolic muscle growth from prolonged… (More on Glutamine)