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Human epimerases include methylmalonyl-CoA epimerase, involved in the metabolic breakdown of the amino acids alanine, isoleucine, methionine and valine, [2] and UDP-glucose 4-epimerase, which is used in the final step of galactose metabolism - catalyzing the reversible conversion of UDP-galactose to UDP-glucose.
Methylmalonyl CoA epimerase (EC 5.1.99.1, methylmalonyl-CoA racemase, methylmalonyl coenzyme A racemase, DL-methylmalonyl-CoA racemase, 2-methyl-3-oxopropanoyl-CoA 2-epimerase [incorrect]) is an enzyme involved in fatty acid catabolism that is encoded in human by the "MCEE" gene located on chromosome 2. It is routinely and incorrectly labeled ...
alanine racemase, methionine racemase: EC 5.1.2: Acting on Hydroxy Acids and Derivatives: lactate racemase, tartrate epimerase: EC 5.1.3: Acting on Carbohydrates and Derivatives: ribulose-phosphate 3-epimerase, UDP-glucose 4-epimerase: EC 5.1.99: Acting on Other Compounds: methylmalonyl CoA epimerase, hydantoin racemase
The structure of alanine racemase from Bacillus stearothermophilus (Geobacillus stearothermophilus) was determined by X-ray crystallography to a resolution of 1.9 A. [7] The alanine racemase monomer is composed of two domains, an eight-stranded alpha/beta barrel at the N terminus, and a C-terminal domain essentially composed of beta-strand. A ...
The systematic name of this enzyme class is 2-methylacyl-CoA 2-epimerase. In vitro experiments with the human enzyme AMACR 1A show that both (2S)- and (2R)-methyldecanoyl-CoA esters are substrates and are converted by the enzyme with very similar efficiency. Prolonged incubation of either substrate with the enzyme establishes an equilibrium ...
EC 5.1.3.35: 2-epi-5-epi-valiolone 7-phosphate 2-epimerase * EC 5.1.3.36: heparosan-glucuronate 5-epimerase * EC 5.1.3.37: mannuronan 5-epimerase * EC 5.1.3.38: D-erythrulose 1-phosphate 3-epimerase * EC 5.1.3.39: L-erythrulose 4-phosphate epimerase. The activity has been shown not to take place. * EC 5.1.3.40: D-tagatose 6-phosphate 4-epimerase *
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In enzymology, an isocitrate epimerase is classified as follows: EC 5.1.2.6. This number indicates that it is an isomerase, specifically a racemase or epimerase that acts on hydroxy acids and their derivatives, namely isocitrate. [1] Isocitrate epimerase specifically catalyzes the reversible reaction: [2]