Common NameO-phospho-l-serine
DescriptionDL-O-Phosphoserine, also known as DL-O-phosphorylserine or DL-O-serine phosphate, belongs to the class of organic compounds known as alpha amino acids. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Serine proteases are a common type of protease. DL-O-Phosphoserine exists in all living species, ranging from bacteria to humans. Serine is one of three amino acid residues that are commonly phosphorylated by kinases during cell signalling in eukaryotes.
Structure
Molecular FormulaC3H8NO6P
Average Mass185.07250
Monoisotopic Mass185.00892
IUPAC Name2-amino-3-(phosphonooxy)propanoic acid
Traditional NamePhosphoserine
CAS Registry Number17885-08-04
SMILES[NH3+][C@@H](COP(=O)([O-])[O-])C(=O)[O-]
InChI IdentifierInChI=1S/C3H8NO6P/c4-2(3(5)6)1-10-11(7,8)9/h2H,1,4H2,(H,5,6)(H2,7,8,9)
InChI KeyBZQFBWGGLXLEPQ-UHFFFAOYSA-N
CHEBI IDCHEBI:57524
HMDB IDHMDB0001721
StateSolid
Water Solubility1.99e+01 g/l
logP-2.32
logS-0.97
pKa (Strongest Acidic)1.20
pKa (Strongest Basic)9.39
Hydrogen Acceptor Count6
Hydrogen Donor Count4
Polar Surface Area130.08 Ų
Rotatable Bond Count4
Physiological Charge-2
Formal Charge0
Refractivity32.91 m³·mol⁻¹
Polarizability14.01

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