نتایج جستجو برای: alanine aminotransferse
تعداد نتایج: 29475 فیلتر نتایج به سال:
Cell wall-membrane preparations of Escherichia coli, prepared by the ethylenediaminetetraacetic acid-lysozyme method, contain enzymes which catalyze the oxidation of d-alanine and, to a lesser extent, l-alanine into pyruvate and ammonia without the formation of hydrogen peroxide. The kinetic parameters were (i) pH optima of 8.3 to 8.4 for l- and d-alanine and (ii) a K(m) value of 6.6 +/- 0.2 mM...
At least two transport systems serve for the entry of alanine, glycine, and serine into Escherichia coli. One of these systems serves mainly for glycine, d-alanine, and d-serine and to some extent for l-alanine, whereas the second serves for l-alanine and perhaps l-serine. These two transport systems have been characterized by kinetic studies and by inhibition analysis. Reciprocal plots for l-a...
Tracer quantities (in 0.2 ml) of 13N-labeled glutamate, alanine, or glutamine(amide) were administered rapidly (less than or equal to 2 s) via the portal vein of anesthetized adult male rats. Liver content of tracer at 5 s was 57 +/- 6 (n = 6), 24 +/- 1 (n = 3), and 69 +/- 7 (n = 3)% of the injected dose, respectively. Portal-hepatic vein differences for the corresponding amino acids were 17 +/...
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