Hmdb loader
Show more...Show more...Show more...
Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2009-01-29 15:21:03 UTC
Update Date2023-02-21 17:17:29 UTC
HMDB IDHMDB0011614
Secondary Accession Numbers
  • HMDB11614
Metabolite Identification
Common Name7-Methyladenine
Description7-Methyladenine is part of the base excision repair pathway. In this pathway, alkylated DNA is hydrolysed via the enzyme DNA-3-methyladenine glycosylase II (EC 3.2.2.21), releasing 3-methyladenine, 3-methylguanine, 7-methylguanine and 7-methyladenine. This enzyme is responsible for the hydrolysis of the deoxyribose N-glycosidic bond to excise 3-methyladenine, and 7-methylguanine from the damaged DNA polymer formed by alkylation lesions. Base excision repair (BER) is a cellular mechanism that repairs damaged DNA throughout the cell cycle. Repairing DNA sequence errors is necessary so that mutations are not propagated or to remove lesions that may lead to breaks in the DNA during replication. Single bases in DNA can be chemically mutated, for example by deamination or alkylation, resulting in incorrect base-pairing, and consequently, mutations in the DNA. Base excision repair involves flipping the mutated base out of the DNA helix and repairing the base alone. There are two main enzymes used, DNA glycosylases and AP endonucleases. The DNA glycosylase is used to break the beta-N glycosidic bond to create an AP site. AP endonuclease recognizes this site and nicks the damaged DNA on the 5' side (upstream) of the AP site creating a free 3'-OH. DNA polymerase, Pol I (human pol beta), extends the DNA from the free 3'-OH using its exonuclease activity to replace the nucleotide of the damaged base, as well as a few downstream, followed by sealing of the new DNA strand by DNA ligase. In mammalian cells, this is done by LigIII in complex with the scaffold protein XRCC1. Usually, BER is divided into short-patch repair (where a single nucleotide is replaced) or long-patch repair (where 2-10 nucleotides are replaced). Mammalian long-patch repair includes PCNA and pol delta/epsilon for nucleotide resynthesis, FEN1 to cut of the 'flap' including the damaged base, and LigI.
Structure
Thumb
Synonyms
ValueSource
7-MethyladenineChEMBL, HMDB
6-amino-7-MethylpurineHMDB
7-Methyl-7H-purin-6-amineHMDB
7-Methyl-7H-purin-6-amine (acd/name 4.0)HMDB
7-Methyl-7H-purin-6-ylamine (acd/name 4.0)HMDB
7-Methyl-N7-methyladenineHMDB
Chemical FormulaC6H7N5
Average Molecular Weight149.1533
Monoisotopic Molecular Weight149.070145249
IUPAC Name7-methyl-7H-purin-6-amine
Traditional Name7-methyladenine
CAS Registry Number935-69-3
SMILES
CN1C=NC2=NC=NC(N)=C12
InChI Identifier
InChI=1S/C6H7N5/c1-11-3-10-6-4(11)5(7)8-2-9-6/h2-3H,1H3,(H2,7,8,9)
InChI KeyHCGHYQLFMPXSDU-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as 6-aminopurines. These are purines that carry an amino group at position 6. Purine is a bicyclic aromatic compound made up of a pyrimidine ring fused to an imidazole ring.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassImidazopyrimidines
Sub ClassPurines and purine derivatives
Direct Parent6-aminopurines
Alternative Parents
Substituents
  • 6-aminopurine
  • Aminopyrimidine
  • N-substituted imidazole
  • Pyrimidine
  • Imidolactam
  • Azole
  • Imidazole
  • Heteroaromatic compound
  • Azacycle
  • Organonitrogen compound
  • Hydrocarbon derivative
  • Amine
  • Organic nitrogen compound
  • Primary amine
  • Organopnictogen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
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
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothNormal details
UrineDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB028319
KNApSAcK IDNot Available
Chemspider ID64663
KEGG Compound IDC02241
BioCyc IDCPD-13320
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound71593
PDB IDNot Available
ChEBI ID28921
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available

Enzymes

General function:
Involved in catalytic activity
Specific function:
Hydrolysis of the deoxyribose N-glycosidic bond to excise 3-methyladenine, and 7-methylguanine from the damaged DNA polymer formed by alkylation lesions
Gene Name:
MPG
Uniprot ID:
P29372
Molecular weight:
32868.4