concept

Serine

Although L-serine is generally classified as a non-essential amino acid, it is probably more appropriate to term it as a "conditional non-essential amino acid" since, under certain circumstances, vertebrates cannot synthesize it in sufficient quantities to meet necessary cellular demands. L-serine is biosynthesized in the mammalian central nervous system from 3-phosphoglycerate and serves as a precursor for the synthesis of the amino acids glycine and cysteine. Physiologically, it has a variety of roles, perhaps most importantly as a phosphorylation site in proteins. Mutations in the metabolic enzymes that synthesize L-serine have been implicated in various human diseases.

Ref:
Metcalf JS, Dunlop RA, Powell JT, Banack SA, Cox PA. L-Serine: a Naturally-Occurring Amino Acid with Therapeutic Potential. Neurotox Res. 2018 Jan;33(1):213-221. doi: 10.1007/s12640-017-9814-x. Epub 2017 Sep 19. PMID: 28929385.

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Added on May 21, 2022 by Barbara Van De Keer
Edited on Jul 15, 2022 by Barbara Van De Keer

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