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The formation of glycine by transamination of glyoxylic acid and amino acids has been reported with rat liver preparations (Meister et al., 1952; Nakada and Weinhouse, 1953) and with dialyzed juice of tobacco leaves (Wilson et al., 1954). Wright (1951) demonstrated that glyoxylate replaced glycine in the growth of a Neurospora mutant and Weinhouse and Friedmann (1951) showed that glyoxylate was rapidly converted to glycine in the intact rat. These observations suggest that transamination reactions with glyoxylate may be widespread in nature. The present paper reports on the transamination of amino acids with glyoxylate by an uni. dentified strain of Pseudomonas (Campbell, 1954). Cell extracts of this organism transaminate alanine, aspartic acid, and glutamic acid with glyoxylic acid, giving rise to glycine and the corresponding keto acids. Asparagine and glutamine undergo transamination and deamidation, forming glycine, ammonia, and keto acids.

TRANSAMINATION OF AMINO ACIDS WITH GLYOXYLIC ACID IN BACTERIAL EXTRACTS