3-hydroxy-2-methylbutyryl-CoA dehydrogenase
| 3-hydroxy-2-methylbutyryl-CoA dehydrogenase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 1.1.1.178 | ||||||||
| CAS no. | 52227-66-4 | ||||||||
| Databases | |||||||||
| BRENDA | enzyme data | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | enzyme entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| Rhea | reactions | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
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In enzymology, 3-hydroxy-2-methylbutyryl-CoA dehydrogenase (EC 1.1.1.178) is an enzyme that catalyzes the chemical reaction
The two substrates of this enzyme are (2S,3S)-2-methyl-3-hydroxybutyryrl-CoA and oxidised nicotinamide adenine dinucleotide (NAD+). Its products are 2-methylacetoacetyl-CoA, reduced NADH, and a proton.[1][2]
This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is (2S,3S)-3-hydroxy-2-methylbutanoyl-CoA:NAD+ oxidoreductase. Other names in common use include 2-methyl-3-hydroxybutyryl coenzyme A dehydrogenase, 2-methyl-3-hydroxybutyryl coenzyme A dehydrogenase, and 2-methyl-3-hydroxy-butyryl CoA dehydrogenase. This enzyme participates in valine, leucine and isoleucine degradation.
Structural studies
[edit]As of 20 January 2010, 6 structure have been solved for this class of enzymes, with the PDB accession code PDB: 1E3S, PDB: 1E3W, PDB: 1E6W, PDB: 1SO8, PDB: 1U7T, PDB: 2O23.
References
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