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Record Information
Created at2005-11-16 15:48:42 UTC
Updated at2021-08-19 23:58:23 UTC
NP-MRD IDNP0000715
Secondary Accession NumbersNone
Natural Product Identification
Common NameL-Homoserine
DescriptionHomoserine is a more reactive variant of the amino acid serine. In this variant, the hydroxyl side chain contains an additional CH2 group which brings the hydroxyl group closer to its own carboxyl group, allowing it to chemically react to form a five-membered ring. This occurs at the point that amino acids normally join to their neighbours in a peptide bond. Homoserine is therefore unsuitable for forming proteins and has been eliminated from the repertoire of amino acids used by living things. Homoserine is the final product on the C-terminal end of the N-terminal fragment following a cyanogen bromide cleavage. (Wikipedia).
(2S)-2-Amino-4-hydroxybutanoic acidChEBI
2-Amino-4-hydroxybutanoic acidChEBI
2-Amino-4-hydroxybutyric acidChEBI
(S)-2-Amino-4-hydroxy-butanoic acidHMDB
(S)-2-Amino-4-hydroxybutanoic acidHMDB
2-Amino-4-hydroxy-butyric acidHMDB
2-Amino-4-hydroxy-L-butyric acidHMDB
Homoserine L-isomerHMDB
L Isomer OF homoserineHMDB
L-Isomer OF homoserineHMDB
Chemical FormulaC4H9NO3
Average Mass119.1192 Da
Monoisotopic Mass119.05824 Da
IUPAC Name(2S)-2-amino-4-hydroxybutanoic acid
Traditional NameL-homoserine
CAS Registry Number672-15-1
InChI Identifier
Spectrum TypeDescriptionDepositor IDDeposition DateView
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, experimental)Wishart Lab2021-06-20View Spectrum
2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental)Wishart Lab2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 400 MHz, H2O, simulated)V.dorna832021-08-07View Spectrum
Species of Origin
Species NameSourceReference
Arabidopsis thalianaKNApSAcK Database
Cannabis sativaCannabisDB
      Not Available
Coffea arabica L.FooDB
    • Shmuel Yannai Dictionary of Food Compounds with CD-ROM: Additives, Flavors, and Ingredients. Chap...
Coffea canephoraFooDB
    • Shmuel Yannai Dictionary of Food Compounds with CD-ROM: Additives, Flavors, and Ingredients. Chap...
Pisum sativumKNApSAcK Database
Species Where Detected
Species NameSourceReference
Escherichia coli K12KNApSAcK Database
Chemical Taxonomy
Description Belongs to the class of organic compounds known as l-alpha-amino acids. These are alpha amino acids which have the L-configuration of the alpha-carbon atom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentL-alpha-amino acids
Alternative Parents
  • L-alpha-amino acid
  • Short-chain hydroxy acid
  • Fatty acid
  • 1,3-aminoalcohol
  • Amino acid
  • Carboxylic acid
  • Monocarboxylic acid or derivatives
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Primary amine
  • Primary alcohol
  • Organooxygen compound
  • Organonitrogen compound
  • Organopnictogen compound
  • Primary aliphatic amine
  • Organic oxygen compound
  • Carbonyl group
  • Amine
  • Alcohol
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physical Properties
Experimental Properties
Melting Point203 °CNot Available
Boiling Point368.72 °C. @ 760.00 mm Hg (est)The Good Scents Company Information System
Water Solubility1000 mg/mLNot Available
LogP-1.289 (est)The Good Scents Company Information System
Predicted Properties
Water Solubility423 g/LALOGPS
pKa (Strongest Acidic)2.22ChemAxon
pKa (Strongest Basic)9.16ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area83.55 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity26.91 m³·mol⁻¹ChemAxon
Polarizability11.44 ųChemAxon
Number of Rings0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
DrugBank IDDB04193
Phenol Explorer Compound IDNot Available
FoodDB IDFDB006683
KNApSAcK IDC00001366
Chemspider ID12126
KEGG Compound IDC00263
BiGG ID34437
Wikipedia LinkHomoserine
PubChem Compound12647
PDB IDNot Available
ChEBI ID15699
Good Scents IDrw1253711
General References
  1. Sreekumar A, Poisson LM, Rajendiran TM, Khan AP, Cao Q, Yu J, Laxman B, Mehra R, Lonigro RJ, Li Y, Nyati MK, Ahsan A, Kalyana-Sundaram S, Han B, Cao X, Byun J, Omenn GS, Ghosh D, Pennathur S, Alexander DC, Berger A, Shuster JR, Wei JT, Varambally S, Beecher C, Chinnaiyan AM: Metabolomic profiles delineate potential role for sarcosine in prostate cancer progression. Nature. 2009 Feb 12;457(7231):910-4. doi: 10.1038/nature07762. [PubMed:19212411 ]
  2. Shoemaker JD, Elliott WH: Automated screening of urine samples for carbohydrates, organic and amino acids after treatment with urease. J Chromatogr. 1991 Jan 2;562(1-2):125-38. [PubMed:2026685 ]
  3. Gazarian KG, Gening LV, Gazarian TG: L-Homoserine: a novel excreted metabolic marker of hepatitis B abnormally produced in liver from methionine. Med Hypotheses. 2002 Apr;58(4):279-83. [PubMed:12027520 ]
  4. Compagnini A, Cunsolo V, Foti S, Saletti R: Improved accuracy in the matrix-assisted laser desorption/ionization-mass spectrometry determination of the molecular mass of cyanogen bromide fragments of proteins by post-cleavage reaction with tris(hydroxymethyl)aminomethane. Proteomics. 2001 Aug;1(8):967-74. [PubMed:11683513 ]
  5. Mung D, Li L: Development of Chemical Isotope Labeling LC-MS for Milk Metabolomics: Comprehensive and Quantitative Profiling of the Amine/Phenol Submetabolome. Anal Chem. 2017 Apr 18;89(8):4435-4443. doi: 10.1021/acs.analchem.6b03737. Epub 2017 Mar 28. [PubMed:28306241 ]