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Record Information
Version5.0
StatusDetected and Quantified
Creation Date2006-08-12 20:13:01 UTC
Update Date2023-02-21 17:16:39 UTC
HMDB IDHMDB0003402
Secondary Accession Numbers
  • HMDB03402
Metabolite Identification
Common NamePectin
DescriptionPectin, also known as galacturonate or D-lyxose, is a structural acidic heteropolysaccharide contained in the primary and middle lamella and cell walls of terrestrial plants. Its main component is galacturonic acid, a sugar acid derived from galactose. It was first isolated and described in 1825 by Henri Braconnot. It is produced commercially as a white to light brown powder, mainly extracted from citrus fruits, and is used in food as a gelling agent, particularly in jams and jellies. It is also used in dessert fillings, medicines, sweets, as a stabiliser in fruit juices and milk drinks, and as a source of dietary fibre. In plant biology, pectin consists of a complex set of polysaccharides (see below) that are present in most primary cell walls and are particularly abundant in the non-woody parts of terrestrial plants. Pectin is a major component of the middle lamella, where it helps to bind cells together, but is also found in primary cell walls. Pectin is deposited by exocytosis into the cell wall via vesicles produced in the golgi. Pectin is a natural part of the human diet, but does not contribute significantly to nutrition. The daily intake of pectin from fruits and vegetables can be estimated to be around 5g if approximately 500g of fruits and vegetables are consumed per day.
Structure
Data?1676999799
Synonyms
Chemical FormulaC6H10O7
Average Molecular Weight194.1394
Monoisotopic Molecular Weight194.042652674
IUPAC Name(2S,3R,4S,5R,6R)-3,4,5,6-tetrahydroxyoxane-2-carboxylic acid
Traditional Nameβ-D-galactopyranuronic acid
CAS Registry Number9000-69-5
SMILES
O[C@@H]1O[C@@H]([C@H](O)[C@H](O)[C@H]1O)C(O)=O
InChI Identifier
InChI=1S/C6H10O7/c7-1-2(8)4(5(10)11)13-6(12)3(1)9/h1-4,6-9,12H,(H,10,11)/t1-,2+,3+,4-,6+/m0/s1
InChI KeyAEMOLEFTQBMNLQ-DTEWXJGMSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as glucuronic acid derivatives. Glucuronic acid derivatives are compounds containing a glucuronic acid moiety (or a derivative), which consists of a glucose moiety with the C6 carbon oxidized to a carboxylic acid.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassCarbohydrates and carbohydrate conjugates
Direct ParentGlucuronic acid derivatives
Alternative Parents
Substituents
  • Glucuronic acid or derivatives
  • Beta-hydroxy acid
  • Hydroxy acid
  • Pyran
  • Monosaccharide
  • Oxane
  • Hemiacetal
  • Secondary alcohol
  • Carboxylic acid derivative
  • Carboxylic acid
  • Oxacycle
  • Organoheterocyclic compound
  • Monocarboxylic acid or derivatives
  • Polyol
  • Hydrocarbon derivative
  • Organic oxide
  • Carbonyl group
  • Alcohol
  • Aliphatic heteromonocyclic compound
Molecular FrameworkAliphatic heteromonocyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
Biological locationSource
ProcessNot Available
Role
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]-Not Available131.4http://allccs.zhulab.cn/database/detail?ID=AllCCS00002112
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular Locations
  • Extracellular
  • Lysosome
Biospecimen Locations
  • Urine
Tissue Locations
  • Adipose Tissue
  • Bladder
  • Epidermis
  • Fibroblasts
  • Intestine
  • Kidney
  • Neuron
  • Placenta
  • Platelet
  • Prostate
  • Skeletal Muscle
  • Spleen
  • Testis
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
UrineDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothNormal details
UrineDetected and Quantified5.26 (4.0-7.0) umol/mmol creatinineAdult (>18 years old)BothNormal
    • Geigy Scientific ...
details
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
UrineDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Bladder cancer
details
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB03652
Phenol Explorer Compound IDNot Available
FooDB IDFDB023162
KNApSAcK IDNot Available
Chemspider ID390200
KEGG Compound IDC08348
BioCyc IDPECTIN
BiGG ID34162
Wikipedia LinkPectin
METLIN ID6916
PubChem Compound441476
PDB IDNot Available
ChEBI ID47954
Food Biomarker OntologyNot Available
VMH IDPECT
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceGu, Qu-Ming; Nickol, Robert G.; Cheng, H. N. Enzyme-catalyzed modification of pectin. Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) (2003), 44(2), 608-609.
Material Safety Data Sheet (MSDS)Download (PDF)
General References

Enzymes

General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGTs are of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isozyme is active on polyhydroxylated estrogens (such as estriol, 4-hydroxyestrone and 2-hydroxyestriol) and xenobiotics (such as 4-methylumbelliferone, 1-naphthol, 4-nitrophenol, 2-aminophenol, 4-hydroxybiphenyl and menthol). It is capable of 6 alpha-hydroxyglucuronidation of hyodeoxycholic acid.
Gene Name:
UGT2B4
Uniprot ID:
P06133
Molecular weight:
60512.035
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform glucuronidates bilirubin IX-alpha to form both the IX-alpha-C8 and IX-alpha-C12 monoconjugates and diconjugate.
Gene Name:
UGT1A4
Uniprot ID:
P22310
Molecular weight:
60024.535
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. Its unique specificity for 3,4-catechol estrogens and estriol suggests it may play an important role in regulating the level and activity of these potent and active estrogen metabolites. Is also active with androsterone, hyodeoxycholic acid and tetrachlorocatechol (in vitro).
Gene Name:
UGT2B7
Uniprot ID:
P16662
Molecular weight:
60720.15
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform glucuronidates bilirubin IX-alpha to form both the IX-alpha-C8 and IX-alpha-C12 monoconjugates and diconjugate. Is also able to catalyze the glucuronidation of 17beta-estradiol, 17alpha-ethinylestradiol, 1-hydroxypyrene, 4-methylumbelliferone, 1-naphthol, paranitrophenol, scopoletin, and umbelliferone.
Gene Name:
UGT1A1
Uniprot ID:
P22309
Molecular weight:
59590.91
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform has specificity for phenols.
Gene Name:
UGT1A9
Uniprot ID:
O60656
Molecular weight:
59940.495
General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform has specificity for phenols.
Gene Name:
UGT1A6
Uniprot ID:
P19224
Molecular weight:
60750.215