Tag: Non protein amino acids

While only 20 amino acids are coded for protein synthesis, over 500 exist naturally in various organisms, including many common foods. These non-protein amino acids (NPAAs) are not incorporated into proteins but play diverse roles, from neurotransmitters to natural defense compounds. Knowing what foods are non-protein amino acids helps in understanding both nutritional benefits and potential risks associated with certain plants and preparations.

L-canavanine is a non-protein amino acid that serves as a defensive compound in many leguminous plants. It is structurally similar to L-arginine, which can lead to its incorporation into an organism's proteins and result in toxic effects. This compound is most concentrated in the seeds and sprouts of these plants, where it provides a chemical deterrent against pests and pathogens.