Studies of glycine oxidation in rat tissues

Autor: Henry I. Nakada, Sidney Weinhouse
Rok vydání: 1953
Předmět:
Zdroj: Archives of Biochemistry and Biophysics. 42:257-270
ISSN: 0003-9861
DOI: 10.1016/0003-9861(53)90356-7
Popis: Using labeled substrates in vitro the oxidation of glycine α- and β-carbons was observed in rat liver and kidney but not in other organs. Glyoxylate α-carbon and formate were identified as intermediates of the oxidation of the glycine α-carbon. The interconversion of glyoxylate and glycolate occurs readily in liver and is catalyzed by DPN-specific lactic dehydrogenase. Glyoxylate was found to be oxidized by xanthine dehydrogenase to oxalate, and to formate and CO 2 by an as yet uncharacterized enzyme in rat liver. Formate is oxidized readily by a variety of rat tissues, and evidence has been presented to indicate this occurs via a peroxidative activity of catalase.
Databáze: OpenAIRE