Phosphoserine is a product of glycolysis and is formed by amino group transfer from glutamic acid to phosphohydroxypyruvic acid.
Phosphoserine is derived directly from dietary sources and, metabolically as an intermediary metabolite from glycolysis and gluconeogenesis.
References:
- https://pubchem.ncbi.nlm.nih.gov/compound/dl-O-Phosphoserine
- https://www.sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/phosphoserine
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