You are using an unsupported browser. Please upgrade your browser to a newer version to get the best experience on Human Metabolome Database.
Record Information
StatusDetected and Quantified
Creation Date2005-11-16 15:48:42 UTC
Update Date2017-12-20 20:30:38 UTC
Secondary Accession Numbers
  • HMDB00645
  • HMDB03359
Metabolite Identification
Common NameGalactose 1-phosphate
DescriptionGalactose 1-phosphate is an intermediate in the Galactose metabolism. and Nucleotide sugars metabolism pathways (KEGG). Galactose-1-phosphate is an intermediate in the intraconversion of glucose and galactose. It is formed from galactose by galactokinase. (Wikipeida).
alpha-D-Galactopyranose 1-phosphateChEBI
alpha-D-Galactopyranose, 1-(dihydrogen phosphate)ChEBI
alpha-D-Galactopyranosyl phosphateChEBI
alpha-D-Galactosyl phosphateChEBI
Galactose 1-phosphoric acidGenerator
a-D-Galactopyranose 1-phosphateGenerator
a-D-Galactopyranose 1-phosphoric acidGenerator
alpha-D-Galactopyranose 1-phosphoric acidGenerator
α-D-galactopyranose 1-phosphateGenerator
α-D-galactopyranose 1-phosphoric acidGenerator
a-D-Galactopyranose, 1-(dihydrogen phosphate)Generator
a-D-Galactopyranose, 1-(dihydrogen phosphoric acid)Generator
alpha-D-Galactopyranose, 1-(dihydrogen phosphoric acid)Generator
α-D-galactopyranose, 1-(dihydrogen phosphate)Generator
α-D-galactopyranose, 1-(dihydrogen phosphoric acid)Generator
a-D-Galactopyranosyl phosphateGenerator
a-D-Galactopyranosyl phosphoric acidGenerator
alpha-D-Galactopyranosyl phosphoric acidGenerator
α-D-galactopyranosyl phosphateGenerator
α-D-galactopyranosyl phosphoric acidGenerator
a-D-Galactosyl phosphateGenerator
a-D-Galactosyl phosphoric acidGenerator
alpha-D-Galactosyl phosphoric acidGenerator
α-D-galactosyl phosphateGenerator
α-D-galactosyl phosphoric acidGenerator
Galactose-1-phosphoric acidGenerator
1-(Dihydrogen phosphate) galactitolHMDB
1-Phosphate a-D-galactopyranoseHMDB
a-D-1-(Dihydrogen phosphate) galactopyranoseHMDB
a-D-Galactose 1-phosphateHMDB
alpha-D-1-(Dihydrogen phosphate) galactopyranoseHMDB
alpha-D-Galactose 1-phosphateHMDB
D-Galactose 1-phosphateHMDB
Galactopyranose 1-phosphateHMDB
Galactose-1-phosphate, (beta-L-gal)-isomerMeSH
Galactose-1-phosphate, disilver (+1) salt, (D-gal)-isomerMeSH
Galactose-1-phosphate, sodium saltMeSH
Galactose-1-phosphate, 14C-labeledMeSH
Galactose-1-phosphate, (beta-D-gal)-isomerMeSH
Chemical FormulaC6H13O9P
Average Molecular Weight260.1358
Monoisotopic Molecular Weight260.029718526
IUPAC Name{[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phosphonic acid
Traditional Namegalactose 1 phosphate
CAS Registry Number2255-14-3
InChI Identifier
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as monosaccharide phosphates. These are monosaccharides comprising a phosphated group linked to the carbohydrate unit.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassCarbohydrates and carbohydrate conjugates
Direct ParentMonosaccharide phosphates
Alternative Parents
  • Hexose monosaccharide
  • Monosaccharide phosphate
  • Monoalkyl phosphate
  • Organic phosphoric acid derivative
  • Oxane
  • Alkyl phosphate
  • Phosphoric acid ester
  • Secondary alcohol
  • Oxacycle
  • Organoheterocyclic compound
  • Polyol
  • Alcohol
  • Hydrocarbon derivative
  • Primary alcohol
  • Organic oxide
  • Aliphatic heteromonocyclic compound
Molecular FrameworkAliphatic heteromonocyclic compounds
External Descriptors
  • Endogenous
  • Component of Galactose metabolism
  • Component of Nucleotide sugars metabolism
ApplicationNot Available
Cellular locations
  • Cytoplasm (predicted from logP)
Physical Properties
Experimental Properties
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
Water Solubility32.3 g/LALOGPS
pKa (Strongest Acidic)1.16ChemAxon
pKa (Strongest Basic)-3ChemAxon
Physiological Charge-2ChemAxon
Hydrogen Acceptor Count8ChemAxon
Hydrogen Donor Count6ChemAxon
Polar Surface Area156.91 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity46.8 m³·mol⁻¹ChemAxon
Polarizability20.62 ųChemAxon
Number of Rings1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectrum TypeDescriptionSplash Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0002-9110000000-ee60e23a7f8053dae6d3View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (4 TMS) - 70eV, Positivesplash10-0fsi-5901370000-80b5e0114d382bd45e3fView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , negativesplash10-004i-9030000000-7fff706c8ccfa4e8ee82View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , negativesplash10-004i-9030000000-7ea4c16f3c1f90045b95View in MoNA
LC-MS/MSLC-MS/MS Spectrum - , negativesplash10-0002-9000000000-d23bc07bd7bdf7ddce46View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0002-9240000000-4057005941a73b47e92bView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0002-9240000000-2b520b8d7520453613e5View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0002-9100000000-adafd3ed58bf5371e4a1View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0a6s-9480000000-6d21f499da6e13bbe38dView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-004i-9110000000-68aeffe1ebca2d4d4362View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-004i-9000000000-dfc211275bafe42581aeView in MoNA
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
Biological Properties
Cellular Locations
  • Cytoplasm (predicted from logP)
Biofluid Locations
  • Blood
Tissue Location
  • Erythrocyte
  • Red Blood Cell
Congenital disorder of glycosylation CDG-IIdPw000555Pw000555 greyscalePw000555 simpleNot Available
GLUT-1 deficiency syndromePw000556Pw000556 greyscalePw000556 simpleNot Available
Galactose MetabolismPw000159Pw000159 greyscalePw000159 simpleMap00052
GalactosemiaPw000200Pw000200 greyscalePw000200 simpleNot Available
Galactosemia II (GALK)Pw000471Pw000471 greyscalePw000471 simpleNot Available
Normal Concentrations
BloodDetected and Quantified31.0 (0.0-57.0) uMChildren (1-13 years old)BothNormal
    • Geigy Scientific ...
BloodDetected and Quantified65.0 +/- 31.0 uMNewborn (0-30 days old)BothNormal
    • Geigy Scientific ...
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB02317
Phenol Explorer Compound IDNot Available
FoodDB IDFDB001159
KNApSAcK IDC00007391
Chemspider ID110443
KEGG Compound IDC00446
BiGG ID35001
Wikipedia LinkGalactose_1-phosphate
PubChem Compound123912
ChEBI ID17973
Synthesis ReferenceChen Jie; Yager Claire; Reynolds Robert; Palmieri Michael; Segal Stanton Erythrocyte galactose 1-phosphate quantified by isotope-dilution gas chromatography-mass spectrometry. Clinical chemistry (2002), 48(4), 604-12.
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Ning C, Reynolds R, Chen J, Yager C, Berry GT, McNamara PD, Leslie N, Segal S: Galactose metabolism by the mouse with galactose-1-phosphate uridyltransferase deficiency. Pediatr Res. 2000 Aug;48(2):211-7. [PubMed:10926297 ]
  2. Berry GT, Palmieri M, Gross KC, Acosta PB, Henstenburg JA, Mazur A, Reynolds R, Segal S: The effect of dietary fruits and vegetables on urinary galactitol excretion in galactose-1-phosphate uridyltransferase deficiency. J Inherit Metab Dis. 1993;16(1):91-100. [PubMed:8487507 ]
  3. Ono H, Mawatari H, Mizoguchi N, Eguchi T, Sakura N, Hamakawa M: Transient galactosemia detected by neonatal mass screening. Pediatr Int. 1999 Jun;41(3):281-4. [PubMed:10365579 ]
  4. Endres W: Inherited metabolic diseases affecting the carrier. J Inherit Metab Dis. 1997 Mar;20(1):9-20. [PubMed:9061562 ]
  5. Guerrero NV, Singh RH, Manatunga A, Berry GT, Steiner RD, Elsas LJ 2nd: Risk factors for premature ovarian failure in females with galactosemia. J Pediatr. 2000 Dec;137(6):833-41. [PubMed:11113841 ]
  6. Schaub J, Remberger K, Endres W, Bremer HJ: Galactosemia with endogenous production of galactose-1-phosphate and with cystic fibrosis-like appearance at autopsy. Helv Paediatr Acta. 1976 Jun;31(1):67-76. [PubMed:939702 ]
  7. Bozkowa K, Zbieg-Sendecka E, Grodzka Z, Cabalska B: [Clinical and biochemical diagnosis of galactosemia among our cases]. Probl Med Wieku Rozwoj. 1979;8:63-9. [PubMed:263527 ]
  8. Dahlqvist A: A fluorometric method for the assay of galactose-1-phosphate in red blood cells. J Lab Clin Med. 1971 Dec;78(6):931-8. [PubMed:5131857 ]
  9. Bozkowa K, Duchnowska A, Chojnacki T, Mankowski T: [New radioisotope method of quantitative determination of galactose-1-phosphate in red blood cells in galactosemia]. Pol Tyg Lek. 1975 Dec 22;30(51):2123-6. [PubMed:1197109 ]
  10. Wharton CH, Berry HK, Bofinger MK: Galactose-1-phosphate accumulation by a Duarte-transferase deficiency double heterozygote. Clin Genet. 1978 Feb;13(2):171-5. [PubMed:627109 ]
  11. Gitzelmann R, Steinmann B, Mitchell B, Haigis E: Uridine diphosphate galactose 4'-epimerase deficiency. IV. Report of eight cases in three families. Helv Paediatr Acta. 1977 Apr;31(6):441-52. [PubMed:404274 ]
  12. Barbouth D, Slepak T, Klapper H, Lai K, Elsas LJ: Prevention of a molecular misdiagnosis in galactosemia. Genet Med. 2006 Mar;8(3):178-82. [PubMed:16540753 ]
  13. Mankowski T, Radomyska B, Zbieg-Sendecka E: Preliminary results of UDP galactose pyrophosphorylase in the erythrocytes of healthy persons and in patients with galactosaemia. Mater Med Pol. 1990 Jul-Sep;22(3):191-3. [PubMed:2132425 ]
  14. Moller HE, Ullrich K, Vermathen P, Schuierer G, Koch HG: In vivo study of brain metabolism in galactosemia by 1H and 31P magnetic resonance spectroscopy. Eur J Pediatr. 1995;154(7 Suppl 2):S8-13. [PubMed:7671972 ]
  15. Barth CA, Kopra N: Oral intake of glucose plus galactose and erythrocyte galactose-1-phosphate. A nutritional evaluation of hydrolyzed lactose. Z Ernahrungswiss. 1986 Sep;25(3):171-9. [PubMed:3776241 ]
  16. Pesce MA, Bodourian SH: Clinical significance of plasma galactose and erythrocyte galactose-1-phosphate measurements in transferase-deficient galactosemia and in individuals with below-normal transferase activity. Clin Chem. 1982 Feb;28(2):301-5. [PubMed:6276048 ]
  17. Schadewaldt P, Kamalanathan L, Hammen HW, Wendel U: Age dependence of endogenous galactose formation in Q188R homozygous galactosemic patients. Mol Genet Metab. 2004 Jan;81(1):31-44. [PubMed:14728989 ]
  18. Pesce MA, Bodourian SH, Nicholson JF: A new microfluorometric method for the measurement of galactose-1-phosphate in erythrocytes. Clin Chim Acta. 1982 Feb 5;118(2-3):177-89. [PubMed:7055979 ]


General function:
Involved in UDP-glucose:hexose-1-phosphate uridylyltransferase activity
Specific function:
Not Available
Gene Name:
Uniprot ID:
Molecular weight:
Uridine diphosphate glucose + Galactose 1-phosphate → Glucose 1-phosphate + Uridine diphosphategalactosedetails
General function:
Involved in galactokinase activity
Specific function:
Acts on GalNAc. Also acts as a galactokinase when galactose is present at high concentrations. May be involved in a salvage pathway for the reutilization of free GalNAc derived from the degradation of complex carbohydrates.
Gene Name:
Uniprot ID:
Molecular weight:
Adenosine triphosphate + Beta-D-Galactose → ADP + Galactose 1-phosphatedetails
General function:
Involved in galactokinase activity
Specific function:
Major enzyme for galactose metabolism.
Gene Name:
Uniprot ID:
Molecular weight:
Adenosine triphosphate + Beta-D-Galactose → ADP + Galactose 1-phosphatedetails