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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 ...
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.
This list contains a list of EC numbers for the fifth group, EC 5, isomerases, placed in numerical order as determined by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology.
Amino-acid racemase: Phenylalanine racemase ... D-alanine-D-alanyl-carrier protein ligase; ... This page was last edited on 10 September 2024, ...
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
L-Alanine is produced industrially by decarboxylation of L-aspartate by the action of aspartate 4-decarboxylase. Fermentation routes to L-alanine are complicated by alanine racemase. [14] Racemic alanine can be prepared by the condensation of acetaldehyde with ammonium chloride in the presence of sodium cyanide by the Strecker reaction, [15]
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Seven proteins have been identified in washed exosporium: alanine racemase, inosine hydrolase, ExsF, CotY, ExsY, CotB, and a novel protein, ExsK. CotY, ExsY and CotB are homologues of Bacillus subtilis outer spore coat proteins, but ExsF and ExsK are specific to B. anthracis and other members of the Bacillus cereus group.