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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2006-05-22 14:17:45 UTC
Update Date2022-09-22 18:34:16 UTC
HMDB IDHMDB0002275
Secondary Accession Numbers
  • HMDB02275
Metabolite Identification
Common Name7,8-Dihydroneopterin
Description7,8-Dihydroneopterin, also known as dihydroneopterin, belongs to the class of organic compounds known as biopterins and derivatives. These are coenzymes containing a 2-amino-pteridine-4-one derivative. They are synthesized in several parts of the body, including the pineal gland. 7,8-Dihydroneopterin is a strong basic compound (based on its pKa). Within humans, 7,8-dihydroneopterin participates in a number of enzymatic reactions. In particular, 7,8-dihydroneopterin can be biosynthesized from sepiapterin; which is catalyzed by the enzyme sepiapterin reductase or carbonyl reductase [NADPH] 1. In humans, 7,8-dihydroneopterin is involved in the metabolic disorder called hyperphenylalaninemia due to 6-pyruvoyltetrahydropterin synthase (PTPS) deficiency. 7,8-Dihydroneopterin is produced by human monocyte-derived macrophages upon stimulation with interferon-gamma. Increased amounts of 7,8-dihydroneopterin in human body fluids are found in many disorders, including viral infections and autoimmune diseases (PMID: 12804528 ).
Structure
Thumb
Synonyms
ValueSource
2-Amino-4-hydroxy-6-(D-erythro-1,2,3-trihydroxypropyl)-7,8-dihydropteridineChEBI
2-AMINO-7,8-dihydro-6-(1,2,3-trihydroxypropyl)-4(1H)-pteridinoneChEBI
DihydroneopterinChEBI
7,8-Dihydro-neopterinHMDB
2-Amino-4-hydroxy-6-(D-erythro-1',2',3'-trihydroxypropyl)-7,8-dihydropteridineHMDB
2-Amino-4-hydroxy-6-(D-erythro-1’,2’,3’-trihydroxypropyl)-7,8-dihydropteridineHMDB
2-Amino-7,8-dihydro-6-[(1S,2R)-1,2,3-trihydroxypropyl]-4(3H)-pteridinoneHMDB
7,8-Dihydro-D-erythro-neopterinHMDB
7,8-Dihydro-D-neopterinHMDB
D-Erythro-7,8-dihydroneopterinHMDB
7,8-DihydroneopterinHMDB
Chemical FormulaC9H13N5O4
Average Molecular Weight255.2306
Monoisotopic Molecular Weight255.096753929
IUPAC Name2-amino-6-[(1S,2R)-1,2,3-trihydroxypropyl]-1,4,7,8-tetrahydropteridin-4-one
Traditional Name2-amino-6-[(1S,2R)-1,2,3-trihydroxypropyl]-7,8-dihydro-1H-pteridin-4-one
CAS Registry Number1218-98-0
SMILES
NC1=NC(=O)C2=C(NCC(=N2)[C@H](O)[C@H](O)CO)N1
InChI Identifier
InChI=1S/C9H13N5O4/c10-9-13-7-5(8(18)14-9)12-3(1-11-7)6(17)4(16)2-15/h4,6,15-17H,1-2H2,(H4,10,11,13,14,18)/t4-,6+/m1/s1
InChI KeyYQIFAMYNGGOTFB-XINAWCOVSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as biopterins and derivatives. These are coenzymes containing a 2-amino-pteridine-4-one derivative. They are mainly synthesized in several parts of the body, including the pineal gland.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassPteridines and derivatives
Sub ClassPterins and derivatives
Direct ParentBiopterins and derivatives
Alternative Parents
Substituents
  • Biopterin
  • Aminopyrimidine
  • Pyrimidone
  • Secondary aliphatic/aromatic amine
  • Pyrimidine
  • Vinylogous amide
  • Heteroaromatic compound
  • Ketimine
  • Secondary alcohol
  • Azacycle
  • Organic 1,3-dipolar compound
  • Propargyl-type 1,3-dipolar organic compound
  • Secondary amine
  • Polyol
  • Amine
  • Organopnictogen compound
  • Primary amine
  • Primary alcohol
  • Organic oxide
  • Organooxygen compound
  • Organonitrogen compound
  • Hydrocarbon derivative
  • Imine
  • Organic oxygen compound
  • Organic nitrogen compound
  • Alcohol
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
Source
Process
RoleNot Available
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
  • Urine
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedCancer patients undergoing total body irradiation details
UrineDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedCancer patients undergoing total body irradiation details
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB04425
Phenol Explorer Compound IDNot Available
FooDB IDFDB030616
KNApSAcK IDC00007312
Chemspider ID58584
KEGG Compound IDC04874
BioCyc IDDIHYDRO-NEO-PTERIN
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound65074
PDB IDNot Available
ChEBI ID17001
Food Biomarker OntologyNot Available
VMH IDDHNPT
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References

Enzymes

General function:
Involved in catalytic activity
Specific function:
Not Available
Gene Name:
ALPP
Uniprot ID:
P05187
Molecular weight:
57953.31
Reactions
Dihydroneopterin triphosphate + Water → 7,8-Dihydroneopterin + Phosphatedetails
General function:
Involved in catalytic activity
Specific function:
Not Available
Gene Name:
ALPI
Uniprot ID:
P09923
Molecular weight:
56811.695
Reactions
Dihydroneopterin triphosphate + Water → 7,8-Dihydroneopterin + Phosphatedetails
General function:
Involved in catalytic activity
Specific function:
This isozyme may play a role in skeletal mineralization.
Gene Name:
ALPL
Uniprot ID:
P05186
Molecular weight:
57304.435
Reactions
Dihydroneopterin triphosphate + Water → 7,8-Dihydroneopterin + Phosphatedetails
General function:
Involved in catalytic activity
Specific function:
Not Available
Gene Name:
ALPPL2
Uniprot ID:
P10696
Molecular weight:
57376.515
Reactions
Dihydroneopterin triphosphate + Water → 7,8-Dihydroneopterin + Phosphatedetails
General function:
Involved in 6-pyruvoyltetrahydropterin synthase activity
Specific function:
Involved in the biosynthesis of tetrahydrobiopterin, an essential cofactor of aromatic amino acid hydroxylases. Catalyzes the transformation of 7,8-dihydroneopterin triphosphate into 6-pyruvoyl tetrahydropterin.
Gene Name:
PTS
Uniprot ID:
Q03393
Molecular weight:
16385.63
General function:
Involved in nucleotide binding
Specific function:
Possesses single-stranded DNA-stimulated ATPase and ATP-dependent DNA helicase (5' to 3') activity; hexamerization is thought to be critical for ATP hydrolysis and adjacent subunits in the ring-like structure contribute to the ATPase activity. Component of the NuA4 histone acetyltransferase complex which is involved in transcriptional activation of select genes principally by acetylation of nucleosomal histones H4 and H2A. This modification may both alter nucleosome - DNA interactions and promote interaction of the modified histones with other proteins which positively regulate transcription. This complex may be required for the activation of transcriptional programs associated with oncogene and proto-oncogene mediated growth induction, tumor suppressor mediated growth arrest and replicative senescence, apoptosis, and DNA repair. The NuA4 complex ATPase and helicase activities seem to be, at least in part, contributed by the association of RUVBL1 and RUVBL2 with EP400. NuA4 may also play a direct role in DNA repair when recruited to sites of DNA damage. Proposed core component of the chromatin remodeling INO80 complex which is involved in transcriptional regulation, DNA replication and probably DNA repair. Plays an essential role in oncogenic transformation by MYC and also modulates transcriptional activation by the LEF1/TCF1-CTNNB1 complex. May also inhibit the transcriptional activity of ATF2.
Gene Name:
RUVBL2
Uniprot ID:
Q9Y230
Molecular weight:
51156.08