Epimerases and racemases are isomeraseenzymes that catalyze the inversion of stereochemistry in biological molecules.[1] Racemases catalyze the stereochemical inversion around the asymmetric carbon atom in a substrate having only one center of asymmetry. Epimerases catalyze the stereochemical inversion of the configuration about an asymmetric carbon atom in a substrate having more than one center of asymmetry, thus interconverting epimers.
epimerase, racemase, epimerases, racemases, isomerase, enzymes, that, catalyze, inversion, stereochemistry, biological, molecules, racemases, catalyze, stereochemical, inversion, around, asymmetric, carbon, atom, substrate, having, only, center, asymmetry, epi. Epimerases and racemases are isomerase enzymes that catalyze the inversion of stereochemistry in biological molecules 1 Racemases catalyze the stereochemical inversion around the asymmetric carbon atom in a substrate having only one center of asymmetry Epimerases catalyze the stereochemical inversion of the configuration about an asymmetric carbon atom in a substrate having more than one center of asymmetry thus interconverting epimers 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 See also editGalactose epimerase deficiencyReferences edit Tanner ME 2002 Understanding nature s strategies for enzyme catalyzed racemization and epimerization Acc Chem Res 35 4 237 246 doi 10 1021 ar000056y PMID 11955052 Isomerase enzyme Britannica External links edithttp medical dictionary thefreedictionary com racemase http medical dictionary thefreedictionary com epimerase Entry Term Epimerases at the U S National Library of Medicine Medical Subject Headings MeSH nbsp This enzyme related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Epimerase and racemase amp oldid 1055563433, wikipedia, wiki, book, books, library,
