Tartaric Acid Metabolism

Tartaric Acid Metabolism T7111. CRYSTALLISE TARTRONIC SEMIALDEHYDE REDUCTASE

Tartronic semialdehyde reductase from Pseudomonas putida has been purified and crystallized. As calculated from hydrodynamic measurements, the active enzyme has a molecular weight of 104,000 and appears to be composed of four subunits, each of which has a molecular weight of approximately 26,000. The enzyme catalyzes the reversible reduction of tartronic semialdehyde to D-glycerate in the prese...

l-Ascorbic Acid Metabolism in Vitaceae: Conversion to (+)-Tartaric Acid and Hexoses.

The metabolic fate of l-ascorbic acid-1-(14)C and -6-(14)C has been investigated in two species in two genera of Vitaceae. Results suggest that ascorbic acid metabolism in the Vitaceae involves splitting the 6-carbon chain into 4- and 2-carbon fragments. The former, corresponding to C1 through C4 of ascorbic acid, is further oxidized to tartaric acid while the latter, corresponding to C5 and C6...

Significance of urinary tartaric acid.

Tartaric Acid Dehydrogenase Activity in Higher Plants1,2

Although the tartrates have been considered as possible metabolites in higher plants since the initial work of Pasteur in 1848, surprisingly little is known of their actual physiological significance. Vickery and Palmer (35) have briefly reviewed the history of (+)-tartrate in plants, including the problems of identification and of nomenclature. They conclude that (+)-tartrate is an uncommon pl...

l-Asparagine–l-tartaric acid (1/1)

In the title compound, C(4)H(8)N(2)O(3)·C(4)H(6)O(6), the amino acid mol-ecule exists as a zwitterion and the carb-oxy-lic acid in an un-ionized state. The tartaric acid mol-ecules are linked into layers parallel to the ab plane by O-H⋯O hydrogen bonds. The amino acid mol-ecules are also linked into layers parallel to the ab plane by N-H⋯O and C-H⋯O hydrogen bonds. The alternating tartaric acid...