Record Information
Version2.0
StatusDetected and Quantified
Creation Date2022-04-29 22:45:27 UTC
Update Date2025-10-07 16:08:14 UTC
Metabolite IDMMDBc0049881
Metabolite Identification
Common Name4-Hydroxybutyryl-CoA
Description4-Hydroxybutyryl-CoA is a CoA thioester and a member of the acyl-CoA chemical class, characterized by its hydroxybutyryl group attached to coenzyme A. Its chemical structure features a four-carbon chain with a hydroxyl group at the second carbon, making it a key intermediate in various metabolic pathways. Notably, 4-hydroxybutyryl-CoA is involved in the 3HP/4HB cycle, which is critical for carbon fixation and amino acid synthesis in organisms such as Escherichia coli, as described in the modified TCA cycle known as the THETA cycle (PMID:39260160 ). Additionally, it plays a role in the metabolism of Clostridioides difficile, where it is incorporated into intracellular CoA pools and can be converted to crotonyl-CoA and (S)-3-hydroxybutyryl-CoA (PMID:38289141 ; PMID:37461482 ). The enzyme 4-hydroxybutyryl-CoA dehydratase facilitates its dehydration to crotonyl-CoA, a reaction that does not require strong reductants (PMID:30995029 ). Furthermore, structural studies have characterized the 4-hydroxybutyryl-CoA synthetase, highlighting its efficiency compared to related enzymes (PMID:39433970 ; PMID:41040329 ).
Structure
Synonyms
ValueSource
4-Hydroxybutanoyl-CoAChEBI
4-Hydroxybutanoyl-coenzyme AChEBI
4-Hydroxybutyryl-coenzyme AChEBI
gamma-Hydroxybutanoyl-CoAChEBI
gamma-Hydroxybutyryl-CoAChEBI
gamma-Hydroxybutyryl-coenzyme AChEBI
g-Hydroxybutanoyl-CoAGenerator
Γ-hydroxybutanoyl-CoAGenerator
g-Hydroxybutyryl-CoAGenerator
Γ-hydroxybutyryl-CoAGenerator
g-Hydroxybutyryl-coenzyme AGenerator
Γ-hydroxybutyryl-coenzyme AGenerator
Molecular FormulaC25H42N7O18P3S
Average Mass853.62
Monoisotopic Mass853.151989708
IUPAC Name{[(2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-4-hydroxy-2-({[hydroxy({hydroxy[(3R)-3-hydroxy-3-{[2-({2-[(4-hydroxybutanoyl)sulfanyl]ethyl}carbamoyl)ethyl]carbamoyl}-2,2-dimethylpropoxy]phosphoryl}oxy)phosphoryl]oxy}methyl)oxolan-3-yl]oxy}phosphonic acid
Traditional Name4-hydroxybutyryl-coa
CAS Registry NumberNot Available
SMILES
CC(C)(COP(O)(=O)OP(O)(=O)OC[C@H]1O[C@H]([C@H](O)[C@@H]1OP(O)(O)=O)N1C=NC2=C1N=CN=C2N)[C@@H](O)C(=O)NCCC(=O)NCCSC(=O)CCCO
InChI Identifier
InChI=1S/C25H42N7O18P3S/c1-25(2,20(37)23(38)28-6-5-15(34)27-7-9-54-16(35)4-3-8-33)11-47-53(44,45)50-52(42,43)46-10-14-19(49-51(39,40)41)18(36)24(48-14)32-13-31-17-21(26)29-12-30-22(17)32/h12-14,18-20,24,33,36-37H,3-11H2,1-2H3,(H,27,34)(H,28,38)(H,42,43)(H,44,45)(H2,26,29,30)(H2,39,40,41)/t14-,18-,19-,20+,24-/m1/s1
InChI KeyBAMBWCGEVIAQBF-CITAKDKDSA-N