Record Information
Version2.0
StatusDetected and Quantified
Creation Date2022-06-05 23:11:56 UTC
Update Date2025-10-07 16:08:30 UTC
Metabolite IDMMDBc0054427
Metabolite Identification
Common NameD-galactaro-1,5-lactone
DescriptionD-galactaro-1,5-lactone is a lactone belonging to the class of organic compounds known as carbohydrates. It is a key intermediate in the metabolic pathway utilized by certain bacteria, such as Agrobacterium tumefaciens strain C58, which can utilize d-galacturonate as a sole carbon source. The first step in this pathway involves the oxidation of d-galacturonate to form D-galactaro-1,5-lactone (PMID:24450804 ). Additionally, this compound is involved in enzymatic reactions, including its isomerization to D-galactaro-1,4-lactone, catalyzed by the enzyme D-galactarolactone isomerase (GLI) (PMID:24450804 ). Structural studies have also revealed the binding of D-galactaro-1,5-lactone within a ternary complex, indicating its role in biochemical interactions, particularly in relation to nicotinamide rings (PMID:21676870 ). Through these pathways and enzymatic processes, D-galactaro-1,5-lactone plays a significant role in the metabolism of galacturonate derivatives in microbial systems.
Structure
Synonyms
ValueSource
(2S,3R,4S,5R)-3,4,5-Trihydroxy-6-oxotetrahydro-2H-pyran-2-carboxylic acidChEBI
1,5-GalactarolactoneChEBI
Galactaro-1,5-lactoneChEBI
GalactarolactoneChEBI
(2S,3R,4S,5R)-3,4,5-Trihydroxy-6-oxotetrahydro-2H-pyran-2-carboxylateGenerator
Molecular FormulaC6H8O7
Average Mass192.1235
Monoisotopic Mass192.02700261
IUPAC Name(2S,3R,4S,5R)-3,4,5-trihydroxy-6-oxooxane-2-carboxylic acid
Traditional Name(2S,3R,4S,5R)-3,4,5-trihydroxy-6-oxooxane-2-carboxylic acid
CAS Registry NumberNot Available
SMILES
[H][C@]1(O)C(=O)O[C@]([H])(C(O)=O)[C@]([H])(O)[C@]1([H])O
InChI Identifier
InChI=1S/C6H8O7/c7-1-2(8)4(5(10)11)13-6(12)3(1)9/h1-4,7-9H,(H,10,11)/t1-,2+,3+,4-/m0/s1
InChI KeyYLKFQNUGXOLRNI-KXMYSMCESA-N