|Superclasses:||Reactions Classified By Conversion Type → Simple Reactions → Chemical Reactions|
|Reactions Classified By Substrate → Small-Molecule Reactions|
EC Number: 188.8.131.52
Enzymes and Genes:
|Escherichia coli K-12 substr. MG1655 :||glyoxalase III, Hsp31 molecular chaperone
In Pathway: methylglyoxal degradation II
The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the Enzyme Commission system.
Most BioCyc compounds have been protonated to a reference pH value of 7.3, and some reactions have been computationally balanced for hydrogen by adding free protons. Please see the PGDB Concepts Guide for more information.
Mass balance status: Balanced.
Enzyme Commission Primary Name: D-lactate dehydratase
Enzyme Commission Synonyms: glyoxylase III
Standard Gibbs Free Energy (ΔrG'° in kcal/mol): 16.64711 [Latendresse13]
Enzyme Commission Summary:
The enzyme converts methylglyoxal to D-lactate in a single glutathione (GSH)-independent step. The other known route for this conversion is the two-step GSH-dependent pathway catalysed by EC 184.108.40.206 (lactoylglutathione lyase) and EC 220.127.116.11 (hydroxyacylglutathione hydrolase).
Unification Links: Rhea:27754
Misra95: Misra K, Banerjee AB, Ray S, Ray M (1995). "Glyoxalase III from Escherichia coli: a single novel enzyme for the conversion of methylglyoxal into D-lactate without reduced glutathione." Biochem J 1995;305 ( Pt 3);999-1003. PMID: 7848303
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