Phosphoserine

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** A derivative of the amino acid serine where the side chain hydroxyl group has been substituted with a phosphono group. Post-translational phosphorylation of serine residues in proteins or peptides can regulate the progression of multiple intracellular signal transduction pathways. Monomeric phosphoserine is an intermediate in L-serine biosynthesis.

**Synonyms:** - 2-Amino-3-(Oxyphosphinyloxyphosphinyl)Propanoic Acid - 2-Amino-3-(Phosphonooxy)Propanoic Acid - 2-Amino-3-Phosphonooxypropanoic Acid - 3-Phospho-Serine - DL-2-Amino-3-Hydroxypropanoic Acid 3-Phosphate - DL-O-Phosphorylserine - DL-Serine Dihydrogen Phosphate - DL-Serine, Dihydrogen Phosphate (Ester) - O-Phosphonoserine - P-Ser - P-Serine - Phosphorylserine - Serine Dihydrogen Phosphate - Serine-3-Phosphate