منابع مشابه
The stereochemistry of enzymatic transamination.
An approach to the determination of the complete stereochemistry of enzymatic transamination is described. Stereospecificity in the enzymatic labilization of one of the 4-methylene protons of pyridoxamine has been demonstrated in the transamination of pyridoxamine catalyzed by apoglutamate-oxaloacetate transaminase. Both enantiomers of the 4-(CHD-NH2) pyridoxamine have been prepared. These comp...
متن کاملSpectrophotometric Measurement of Transamination
In a previous publication (1) from this laboratory, it was demonstrated that the transamination of amino acids to a-ketoglutaric acid is a reaction of wide scope. Although the data reported in the earlier paper permitted the computation of Q transaminase values, these values were of limited quantitative significance since no attempt was made to study the kinetics of these reaction systems, the ...
متن کاملThe Kynurenine Pathway
The kynurenine pathway represents a major route for the catabolism of tryptophan (TRP). In the body, TRP is transported around the periphery either bound to albumin (90%) or in free form (10%), the two states existing in equilibrium (McMenamy 1965). However, only free form TRP can be transported across the blood-brain barrier (BBB) by the competitive and nonspecific L-type amino acid transporte...
متن کاملthe effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
Transamination in Bacteria
The enzyme-catalyzed transamination reaction involves the intermolecular transfer of an amino group from an a-amino acid to an cr-keto acid. Since the discovery of this reaction by Braunstein and Kritzmann (1) in muscle tissue, the reaction has been studied in some detail, particularly in animal tissues (2,3). More recently (4), a study of this reaction in germinating oat seedlings revealed the...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1953
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(19)52632-1