UTILIZATION OF d-GLUTAMIC ACID BY LACTOBACILLUS ARABINOSUS: GLUTAMIC RACEMASE

Glutamic acid racemase from Lactobacillus arabinosus.

The existence of a glutamic acid racemase activity in Lactobacillus arabinosus has been reported by Narrod and Wood (1) and by Ayengar and Roberts (2). As has been pointed out by Meister (3) these observations with dried cell preparations would not exclude a mechanism for glutamic acid racemization in which alanine racemase is coupled with n-glutamic acid-nalanine transaminase and n-glutamic ac...

Glutamic Acid Racemase from LactobaciZZus arabinosus*

The existence of a glutamic acid racemase activity in Lactobacillus arabinosus has been reported by Narrod and Wood (1) and by Ayengar and Roberts (2). As has been pointed out by Meister (3) these observations with dried cell preparations would not exclude a mechanism for glutamic acid racemization in which alanine racemase is coupled with n-glutamic acid-nalanine transaminase and n-glutamic ac...

Glutamic acid inhibition of aspartic acid utilization in threonine biosynthesis.

The observation that Leuconostoc dextranicum 8086 requires either aspartic acid or threonine for growth resulted in studies in which a ri%e’ of aspartic acid in the biosynthesis of threonine was demonstrated in certain lactobacilli (1). In the present investigation, the nature of the requirement for either aspartic acid or threonine for growth of L. dextranicum 8086 has been found to be the res...

Glutamic Acid Dehydrogenase and Glutamic-oxalacetic

As part of a larger project dealing with an in vestigation of amino acid and protein metabolism in leukemia, a study was undertaken to determine those enzymes concerned with amino acid anabo lism and catabolism as they occur in selected tis sues. Several review papers (@,4, 11, 1@)have ade quately summarized our present knowledge of the metabolism of white blood cells (WBC) in leuke mia. Howeve...

Determination of Glutamic Acid