In enzymology, an ornithine racemase (EC 5.1.1.12) is an enzyme that catalyzes the chemical reaction:
L-ornithine D-ornithine
Hence, this enzyme has one substrate, L-ornithine, and one product, D-ornithine.
This enzyme belongs to the family of isomerases, specifically those racemases and epimerases acting on amino acids and derivatives. The systematic name of this enzyme class is ornithine racemase. This enzyme participates in d-arginine and d-ornithine metabolism.
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an ornithineracemase (EC 5.1.1.12) is an enzyme that catalyzes the chemical reaction: L-ornithine ⇌ {\displaystyle \rightleftharpoons } D-ornithine Hence...
D-arginine and D-ornithine metabolism. It employs one cofactor, pyridoxal phosphate. Yorifuji T, Ogata K, Soda K (1969). "Crystalline arginine racemase". Biochem...
cofactor of GABA aminotransferase. Metabolism of ornithine. Pyridoxal phosphate is a cofactor of ornithine carboxylase. Transamination. Pyridoxal phosphate...
biosynthesis.[citation needed] D-Serine, synthesized in neurons by serine racemase from L-serine (its enantiomer), serves as a neuromodulator by coactivating...
in humans, but the ortholog is ornithine decarboxylase. DAPDC is a PLP-dependent enzyme belonging to the alanine racemase family. This enzyme is generally...
4-decarboxylase. Fermentation routes to L-alanine are complicated by alanine racemase. Racemic alanine can be prepared by the condensation of acetaldehyde with...
the bacteria (which produce it from the l form with the enzyme glutamate racemase) and the liver of mammals. Although they occur naturally in many foods...
World" and "Ornithine World" are also conceivable, but nature has chosen none of them. Evolution of life with Proline, Glycine, or Ornithine as the basic...
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