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
Version4.0
StatusExpected but not Quantified
Creation Date2005-11-16 15:48:42 UTC
Update Date2020-02-26 21:23:19 UTC
HMDB IDHMDB0001412
Secondary Accession Numbers
  • HMDB01412
Metabolite Identification
Common Name7,8-Dihydropteroic acid
DescriptionIn the mammalian host, dihydrofolate biosynthesis occurs via the reduction of folic acid, whereas in plasmodia (Plasmodium berghei, a malaria parasite) the biosynthesis of 7,8-dihydropteroate, an intermediate product in dihydrofolate synthesis, occurs via the enzymic catalysis of the reaction of 2-amino-4-hydroxy-6-hydroxymethyl-7,8-dihydropteridine pyrophosphate with p-aminobenzoate. Malaria parasites synthesize their folate cofactors de novo and that the antimalarial action of sulfonamides is due to their inhibiting the plasmodial dihydropteroate synthesis. The enzymes 6-hydroxymethylpterin pyrophosphokinase (EC 2.7.6.3, HPPK) and dihydropteroate synthase (EC 2.5.1.15, DHPS) catalyze sequential steps in folate biosynthesis. They are present in microorganisms but absent in mammals and therefore are especially suitable targets for antimicrobials. Sulfa drugs (sulfonamides and sulfones) currently are used as antimicrobials targeting DHPS, although resistance to these drugs is increasing. A NADPH-coupled microplate photometric assay could be used for rapid screening of chemical libraries for novel inhibitors of folate biosynthesis as the first step in developing new antimicrobial drugs targeting the folate biosynthetic pathway; in the microplate the product of the DHPS reaction, 7,8-Dihydropteroic acid, is reduced to tetrahydropteroate by excess dihydrofolate reductase (DHFR) using the cofactor NADPH. (17134675, 4354403, 3546688).
Structure
Data?1582752199
Synonyms
ValueSource
4-(((2-Amino-1,4,7,8-tetrahydro-4-oxo-6-pteridinyl)methyl)amino)benzoic acidChEBI
7,8-DihydropteroateChEBI
DihydropteroateChEBI
DihydropteroinsaeureChEBI
4-(((2-Amino-1,4,7,8-tetrahydro-4-oxo-6-pteridinyl)methyl)amino)benzoateGenerator
Dihydropteroic acidGenerator
4-[[(2-Amino-1,4,7,8-tetrahydro-4-oxo-6-pteridinyl)methyl]amino]-benzoateHMDB
4-[[(2-Amino-1,4,7,8-tetrahydro-4-oxo-6-pteridinyl)methyl]amino]-benzoic acidHMDB
4-[[(2-Amino-3,4,7,8-tetrahydro-4-oxo-6-pteridinyl)methyl]amino]-benzoateHMDB
4-[[(2-Amino-3,4,7,8-tetrahydro-4-oxo-6-pteridinyl)methyl]amino]-benzoic acidHMDB
DihydropterateHMDB
H2PteHMDB
p-[[(2-Amino-7,8-dihydro-4-hydroxy-6-pteridinyl)methyl]amino]-benzoateHMDB
p-[[(2-Amino-7,8-dihydro-4-hydroxy-6-pteridinyl)methyl]amino]-benzoic acidHMDB
Chemical FormulaC14H14N6O3
Average Molecular Weight314.2994
Monoisotopic Molecular Weight314.112738344
IUPAC Name4-{[(2-amino-4-oxo-3,4,7,8-tetrahydropteridin-6-yl)methyl]amino}benzoic acid
Traditional Name7,8-dihydropteroic acid
CAS Registry Number2134-76-1
SMILES
NC1=NC2=C(N=C(CNC3=CC=C(C=C3)C(O)=O)CN2)C(=O)N1
InChI Identifier
InChI=1S/C14H14N6O3/c15-14-19-11-10(12(21)20-14)18-9(6-17-11)5-16-8-3-1-7(2-4-8)13(22)23/h1-4,16H,5-6H2,(H,22,23)(H4,15,17,19,20,21)
InChI KeyWBFYVDCHGVNRBH-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as pterins and derivatives. These are polycyclic aromatic compounds containing a pterin moiety, which consist of a pteridine ring bearing a ketone and an amine group to form 2-aminopteridin-4(3H)-one.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassPteridines and derivatives
Sub ClassPterins and derivatives
Direct ParentPterins and derivatives
Alternative Parents
Substituents
  • Pterin
  • Aminobenzoic acid
  • Aminobenzoic acid or derivatives
  • Benzoic acid or derivatives
  • Benzoic acid
  • Benzoyl
  • Aniline or substituted anilines
  • Phenylalkylamine
  • Hydroxypyrimidine
  • Secondary aliphatic/aromatic amine
  • Monocyclic benzene moiety
  • Pyrimidine
  • Benzenoid
  • Heteroaromatic compound
  • Amino acid or derivatives
  • Amino acid
  • Ketimine
  • Azacycle
  • Secondary amine
  • Organic 1,3-dipolar compound
  • Propargyl-type 1,3-dipolar organic compound
  • Monocarboxylic acid or derivatives
  • Carboxylic acid derivative
  • Carboxylic acid
  • Organic nitrogen compound
  • Imine
  • Organonitrogen compound
  • Organic oxide
  • Organopnictogen compound
  • Amine
  • Organic oxygen compound
  • Organooxygen compound
  • Hydrocarbon derivative
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
Disposition

Route of exposure:

Source:

Biological location:

Process

Naturally occurring process:

Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility0.14 g/LALOGPS
logP-0.21ALOGPS
logP-0.48ChemAxon
logS-3.4ALOGPS
pKa (Strongest Acidic)4.75ChemAxon
pKa (Strongest Basic)3.54ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count8ChemAxon
Hydrogen Donor Count5ChemAxon
Polar Surface Area141.2 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity93.1 m³·mol⁻¹ChemAxon
Polarizability31.6 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0fe0-0790000000-51d5d3b08e34c7becd27Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-0v4l-2409000000-f79f449589d2247daecaSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-016s-0595000000-4ed77e34023ff886c2a5Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-004i-0940000000-de25deb5daf6b50a16a3Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-01ti-0900000000-958eaaf4ee915da489c4Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-03di-0169000000-2f49a3d279aabb04affaSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-02tl-2392000000-9a4efdf541287a8562e5Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0006-9420000000-e5fb759142be19739bd5Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm (predicted from logP)
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB022607
KNApSAcK IDC00007228
Chemspider ID165
KEGG Compound IDC00921
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN ID6228
PubChem Compound170
PDB IDNot Available
ChEBI ID4581
Food Biomarker OntologyNot Available
VMH IDNot Available
References
Synthesis ReferenceBartels, Rainer; Bock, Lothar. Determination of pteroic acid by high-performance thin-layer chromatography. Contribution to the investigation of 7,8-dihydropteroate synthase. Journal of Chromatography (1994), 659(1), 185-9.
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available

Enzymes

General function:
Involved in tetrahydrofolylpolyglutamate synthase activity
Specific function:
Catalyzes conversion of folates to polyglutamate derivatives allowing concentration of folate compounds in the cell and the intracellular retention of these cofactors, which are important substrates for most of the folate-dependent enzymes that are involved in one-carbon transfer reactions involved in purine, pyrimidine and amino acid synthesis. Unsubstitued reduced folates are the preferred substrates. Metabolizes methotrexate (MTX) to polyglutamates.
Gene Name:
FPGS
Uniprot ID:
Q05932
Molecular weight:
59173.37
Reactions
Adenosine triphosphate + 7,8-Dihydropteroic acid + L-Glutamic acid → ADP + Phosphate + Dihydrofolic aciddetails