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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 10:50:19 UTC
Update Date2021-10-01 21:55:02 UTC
HMDB IDHMDB0252767
Secondary Accession NumbersNone
Metabolite Identification
Common NameGlucomannan
Description This compound has been identified in human blood as reported by (PMID: 31557052 ). Glucomannan is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Glucomannan is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources.
Structure
Thumb
SynonymsNot Available
Chemical FormulaC24H42O21
Average Molecular Weight666.5777
Monoisotopic Molecular Weight666.221858406
IUPAC Name2-[(6-{[4,5-dihydroxy-2-(hydroxymethyl)-6-{[4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy}oxan-3-yl]oxy}-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl)oxy]-6-(hydroxymethyl)oxane-3,4,5-triol
Traditional Nameamylotetraose
CAS Registry NumberNot Available
SMILES
OCC1OC(OC2C(O)C(O)C(OC3C(O)C(O)C(OC4C(O)C(O)C(O)OC4CO)OC3CO)OC2CO)C(O)C(O)C1O
InChI Identifier
InChI=1S/C24H42O21/c25-1-5-9(29)10(30)15(35)22(40-5)44-19-7(3-27)42-24(17(37)12(19)32)45-20-8(4-28)41-23(16(36)13(20)33)43-18-6(2-26)39-21(38)14(34)11(18)31/h5-38H,1-4H2
InChI KeyLUEWUZLMQUOBSB-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as oligosaccharides. These are carbohydrates made up of 3 to 10 monosaccharide units linked to each other through glycosidic bonds.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassCarbohydrates and carbohydrate conjugates
Direct ParentOligosaccharides
Alternative Parents
Substituents
  • Oligosaccharide
  • O-glycosyl compound
  • Glycosyl compound
  • Oxane
  • Secondary alcohol
  • Hemiacetal
  • Oxacycle
  • Organoheterocyclic compound
  • Polyol
  • Acetal
  • Hydrocarbon derivative
  • Primary alcohol
  • Alcohol
  • Aliphatic heteromonocyclic compound
Molecular FrameworkAliphatic heteromonocyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateNot Available
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
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB001195
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound870
PDB IDNot Available
ChEBI IDNot Available
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 References
  1. Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26. [PubMed:31557052 ]

Enzymes

General function:
Not Available
Specific function:
Beta-mannanase likely involved in the utilization of carbohydrates in the human gut. Catalyzes the hydrolysis of different beta-1,4-linked mannans, such as ivory nut mannan, konjac glucomannan, as well as carob and guar gum galactomannans, to a mixture of oligosaccharides. The dominant product from ivory nut mannan is found to be mannotriose; mannobiose and mannotetraose are produced to a lesser extent. Does not hydrolyze mannobiose, and hydrolyzes mannotriose at a significantly lower rate than the longer oligosaccharides.
Gene Name:
(GENBANK) MANNAN ENDO-1
Uniprot ID:
A1A278
Molecular weight:
106996.305