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Record Information
Version5.0
StatusDetected and Quantified
Creation Date2005-11-16 15:48:42 UTC
Update Date2021-09-14 15:45:41 UTC
HMDB IDHMDB0001173
Secondary Accession Numbers
  • HMDB01173
Metabolite Identification
Common Name5'-Methylthioadenosine
Description5'-Methylthioadenosine, also known as MTA or thiomethyladenosine, belongs to the class of organic compounds known as 5'-deoxy-5'-thionucleosides. These are 5'-deoxyribonucleosides in which the ribose is thio-substituted at the 5'position by a S-alkyl group. 5'-Methylthioadenosine is metabolized solely by MTA-phosphorylase, to yield 5-methylthioribose-1-phosphate and adenine, a crucial step in the methionine and purine salvage pathways, respectively. 5'-Methylthioadenosine exists in all living species, ranging from bacteria to humans. 5'-Methylthioadenosine (MTA) is a naturally occurring sulfur-containing nucleoside present in all mammalian tissues. Within humans, 5'-methylthioadenosine participates in a number of enzymatic reactions. In particular, 5'-methylthioadenosine and spermidine can be biosynthesized from S-adenosylmethioninamine and putrescine through the action of the enzyme spermidine synthase. In addition, 5'-methylthioadenosine can be converted into 5-methylthioribose 1-phosphate and L-methionine; which is catalyzed by the enzyme S-methyl-5'-thioadenosine phosphorylase. It is produced from S-adenosylmethionine mainly through the polyamine biosynthetic pathway, where it behaves as a powerful inhibitory product. For instance, 5'-Methylthioadenosine has been shown to influence the regulation of gene expression, proliferation, differentiation, and apoptosis (PMID:15313459 ). In humans, 5'-methylthioadenosine is involved in the metabolic disorder called hypermethioninemia. Outside of the human body, 5'-Methylthioadenosine has been detected, but not quantified in several different foods, such as soursops, allspices, summer grapes, alaska wild rhubarbs, and breadfruits. Elevated excretion appears in children with severe combined immunodeficiency syndrome (SCID) (PMID:3987052 ). Evidence suggests that 5'-Methylthioadenosine can affect cellular processes in many ways. 5'-Methylthioadenosine can be found in human urine.
Structure
Thumb
Synonyms
Chemical FormulaC11H15N5O3S
Average Molecular Weight297.334
Monoisotopic Molecular Weight297.089560061
IUPAC Name(2R,3R,4S,5S)-2-(6-amino-9H-purin-9-yl)-5-[(methylsulfanyl)methyl]oxolane-3,4-diol
Traditional Namemethylthioadenosine
CAS Registry Number2457-80-9
SMILES
CSC[C@H]1O[C@H]([C@H](O)[C@@H]1O)N1C=NC2=C1N=CN=C2N
InChI Identifier
InChI=1S/C11H15N5O3S/c1-20-2-5-7(17)8(18)11(19-5)16-4-15-6-9(12)13-3-14-10(6)16/h3-5,7-8,11,17-18H,2H2,1H3,(H2,12,13,14)/t5-,7-,8-,11-/m1/s1
InChI KeyWUUGFSXJNOTRMR-IOSLPCCCSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as 5'-deoxy-5'-thionucleosides. These are 5'-deoxyribonucleosides in which the ribose is thio-substituted at the 5'position by a S-alkyl group.
KingdomOrganic compounds
Super ClassNucleosides, nucleotides, and analogues
Class5'-deoxyribonucleosides
Sub Class5'-deoxy-5'-thionucleosides
Direct Parent5'-deoxy-5'-thionucleosides
Alternative Parents
Substituents
  • 5'-deoxy-5'-thionucleoside
  • Glycosyl compound
  • N-glycosyl compound
  • 6-aminopurine
  • Pentose monosaccharide
  • Imidazopyrimidine
  • Purine
  • Aminopyrimidine
  • Monosaccharide
  • N-substituted imidazole
  • Pyrimidine
  • Imidolactam
  • Azole
  • Tetrahydrofuran
  • Imidazole
  • Heteroaromatic compound
  • Secondary alcohol
  • 1,2-diol
  • Organoheterocyclic compound
  • Dialkylthioether
  • Sulfenyl compound
  • Thioether
  • Azacycle
  • Oxacycle
  • Organic oxygen compound
  • Alcohol
  • Hydrocarbon derivative
  • Organopnictogen compound
  • Amine
  • Primary amine
  • Organic nitrogen compound
  • Organonitrogen compound
  • Organooxygen compound
  • Organosulfur compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
Biological locationSource
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 Properties

Experimental Collision Cross Sections

Adduct TypeData SourceCCS Value (Å2)Reference
[M-H]-Baker170.34430932474
[M+H]+Baker173.02530932474
[M-H]-Not Available168.5http://allccs.zhulab.cn/database/detail?ID=AllCCS00000159
[M+H]+Not Available167.9http://allccs.zhulab.cn/database/detail?ID=AllCCS00000159
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular Locations
  • Cytoplasm (predicted from logP)
Biospecimen Locations
  • Blood
  • Feces
  • Urine
Tissue Locations
  • Fibroblasts
  • Placenta
  • Platelet
  • Prostate
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot QuantifiedNot AvailableNot Available
Normal
      Not Available
details
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Normal
details
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Normal
details
UrineDetected and Quantified0.12 +/- 0.05 umol/mmol creatinineAdult (>18 years old)MaleNormal details
UrineDetected and Quantified0.12 +/- 0.08 umol/mmol creatinineAdult (>18 years old)BothNormal details
UrineDetected and Quantified0.13 +/- 0.11 umol/mmol creatinineAdult (>18 years old)FemaleNormal details
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Colorectal cancer
details
Associated Disorders and Diseases
Disease References
Colorectal cancer
  1. Goedert JJ, Sampson JN, Moore SC, Xiao Q, Xiong X, Hayes RB, Ahn J, Shi J, Sinha R: Fecal metabolomics: assay performance and association with colorectal cancer. Carcinogenesis. 2014 Sep;35(9):2089-96. doi: 10.1093/carcin/bgu131. Epub 2014 Jul 18. [PubMed:25037050 ]
Associated OMIM IDs
DrugBank IDDB02282
Phenol Explorer Compound IDNot Available
FooDB IDFDB031156
KNApSAcK IDNot Available
Chemspider ID388321
KEGG Compound IDC00170
BioCyc ID5-METHYLTHIOADENOSINE
BiGG ID34127
Wikipedia LinkNot Available
METLIN ID3425
PubChem Compound439176
PDB IDNot Available
ChEBI ID17509
Food Biomarker OntologyNot Available
VMH ID5MTA
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceSufrin, Janice R.; Spiess, Arthur J.; Kramer, Debora L.; Libby, Paul R.; Porter, Carl W. Synthesis and antiproliferative effects of novel 5'-fluorinated analogs of 5'-deoxy-5'-(methylthio)adenosine. Journal of Medicinal Chemistry (1989), 32(5), 997-1001.
Material Safety Data Sheet (MSDS)Not Available
General References

Enzymes

General function:
Involved in spermine synthase activity
Specific function:
Catalyzes the production of spermine from spermidine and decarboxylated S-adenosylmethionine (dcSAM).
Gene Name:
SMS
Uniprot ID:
P52788
Molecular weight:
35278.2
Reactions
S-Adenosylmethioninamine + Spermidine → 5'-Methylthioadenosine + Sperminedetails
General function:
Involved in catalytic activity
Specific function:
Catalyzes the production of spermidine from putrescine and decarboxylated S-adenosylmethionine (dcSAM). Has a strong preference for putrescine as substrate, and has very low activity towards 1,3-diaminopropane. Has extremely low activity towards spermidine.
Gene Name:
SRM
Uniprot ID:
P19623
Molecular weight:
33824.455
Reactions
S-Adenosylmethioninamine + Putrescine → 5'-Methylthioadenosine + Spermidinedetails
S-Adenosylmethioninamine + Spermidine → 5'-Methylthioadenosine + Sperminedetails
S-Adenosylmethioninamine + Cadaverine → 5'-Methylthioadenosine + Aminopropylcadaverinedetails
General function:
Involved in transferase activity, transferring pentosyl groups
Specific function:
Catalyzes the reversible phosphorylation of S-methyl-5'-thioadenosine (MTA) to adenine and 5-methylthioribose-1-phosphate. Involved in the breakdown of MTA, a major by-product of polyamine biosynthesis. Responsible for the first step in the methionine salvage pathway after MTA has been generated from S-adenosylmethionine. Has broad substrate specificity with 6-aminopurine nucleosides as preferred substrates.
Gene Name:
MTAP
Uniprot ID:
Q13126
Molecular weight:
31235.76
Reactions
5'-Methylthioadenosine + Phosphate → Adenine + 5-Methylthioribose 1-phosphatedetails