منابع مشابه
Glutamic-glycine Transaminase from Rat Liver.
.ilthough there is ample evidence for the existence of many different transaminases, the lack of progress in the separation of more individually specific transaminases has been lamented by reviewers for a number of years. Transaminations involving glycine or glyoxylate have been studied extensively in crude preparations of animal (1, 2), plants (3), and microorganisms (4), as well as with purif...
متن کاملKinetic studies of rat liver glutamicalanine transaminase.
With the discovery that pyridoxal phosphate and pyridoxamine phosphate were cofactors for enzymatic transamination, it was proposed that the reaction was biphasic, involving first an amino group transfer from the amino acid substrate to enzymebound pyridoxal phosphate, followed by a transfer of the amino group to the keto acid substrate (for review, see (1)). With the availability of a highly p...
متن کاملRegulation of tyrosine- -ketoglutarate transaminase in rat liver.
The role of the pancreatic hormones, insulin and glucagon, in the regulation of hepatic tyrosine transaminase (L-tyrosine : Z-oxoglutarate aminotransferase, EC 2.6.1.5) was studied in adrenalectomized rats. Each of these hormones initiated a rapid but limited increase in the enzyme level, which reached a maximum after 2.5 to 3 hours. The optimal doses of insulin and glucagon per 100 g of body w...
متن کاملPurification and Properties of Rat Liver Ornithine s-Transaminase*
Pyruvate, oxaloacetate, and P-ketoglutarate were reported to be inactive (4). In contrast, preparations from rat liver were found to be most active with pyruvate, but oc-ketoglutarate, glyoxylate, and a number of other oc-keto acids also were reactive at appreciable rates (5, 6). The equilibrium for Reaction 1 was shown to be very far towards the right, presumably because of spontaneous convers...
متن کاملRegulation of Tyrosine &ietoglutarate Transaminase in Rat Liver
The role of the pancreatic hormones, insulin and glucagon, in the regulation of hepatic tyrosine transaminase (L-tyrosine : Z-oxoglutarate aminotransferase, EC 2.6.1.5) was studied in adrenalectomized rats. Each of these hormones initiated a rapid but limited increase in the enzyme level, which reached a maximum after 2.5 to 3 hours. The optimal doses of insulin and glucagon per 100 g of body w...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1977
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)71860-7