Transaminase

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Related to glutamic-pyruvic transaminase: Serum glutamic oxaloacetic transaminase

transaminase

[¦tranz′am·ə‚nās]
(biochemistry)
One of a group of enzymes that catalyze the transfer of the amino group of an amino acid to a keto acid to form another amino acid. Also known as aminotransferase.

Transaminase

 

(also aminotransferase and aminopherase), an enzyme of the transferase group that catalyzes the transfer of an amino group (—NH2) from an α-amino acid to an α-keto acid. Transaminases are found in most animal and plant tissues and play an important part in nitrogen metabolism. The role of transaminase in the transamination process was discovered by the Soviet biochemists A. E. Braunshtein and M. G. Kritsman in 1937. The coenzyme in transaminase reactions is pyridoxal phosphate, the aldehyde group of which serves as intermediate acceptor of the amino group. The resulting pyridoxamine phosphate transfers the amino group to the ketone group of the acid undergoing amination. The reaction is reversible.

A. A. BOLDYREV

References in periodicals archive ?
375 HND, high-nutrient density; LND, low-nutrient density; HND+EO, HND diet added with 150 mg/kg of essential oils (EO); LND+EO, LND diet added with 150 mg/kg of EO; SEM, pooled standard error of the mean; GOT, glutamic-oxaloacetic transaminase; GPT, glutamic-pyruvic transaminase.
The mean serum urea and potassium levels, though within normal limits, were higher in non-pregnant than pregnant women, as were the mean serum aspartate amino-transferase (AAT)/ serum glutamic oxaloacetic acid transaminase (SGOT), alanine aminotransferase (ALT)/ serum glutamic-pyruvic transaminase (SGPT) and serum amylase (Table III).
In liver function test, serum glutamic oxaloacetic transaminase (SGOT) and serum glutamic-pyruvic transaminase (SGPT) levels were measured by kinetic method.
The enzyme activities for glutamicoxaloacetic transaminase (GOT) or glutamic-pyruvic transaminase (GPT) were assayed using a commercially available GOP-GPT assay kit (Asan Pharmaceutical, Hwaseoung, Korea) as the manufacturer recommended.
The supernatants were used for the assays of glutamic-oxalacetic transaminase (GOT), glutamic-pyruvic transaminase (GPT), total antioxidant capacity (T-AOC), total superoxide dismutase (T-SOD), catalase (CAT), glutathione reductase (GR), glutathione peroxidase (GSH-PX), malondiadehyde (MDA) and GSH.
The concentrations of total cholesterol (Total-C) and the activities of glutamicoxaloacetic transaminase (GOT) and glutamic-pyruvic transaminase (GPT) in serum were measured according to the colorimetric method using a cholesterol diagnostic-kit (Cholesterol E kit, Asan Pharmaceutical, Korea) and a GOT-GPT assay kit (GOP-GPT assay kit, Asan Pharmaceutical, Korea), respectively.
Glutamic-oxaloacetic transaminase (GOT), glutamic-pyruvic transaminase (GPT), total cholesterol, HDL cholesterol and LDL cholesterol in blood were analyzed according to AOAC (1995).
The activities of glutamic-oxaloacetic transaminase (GOT) and glutamic-pyruvic transaminase (GPT) in the serum were measured according to the colorimetric method using a GOT-GPT assay kit (GOT-GPT assay kit, Asan Pharmaceutical, Hwaseong-si, Korea).
The blood samples that were collected without anticoagulant were centrifuged at 1,000xg for 20 min at 4[degrees]C and the serum were partitioned into aliquots and stored at -20[degrees]C until analyzed for albumin, glucose, blood urea nitrogen (BUN), calcium, creatinine, glutamic-pyruvic transaminase (GPT), glutamic-oxaloacetic transaminase (GOT), and globulin with a serum analyzer (Hitachi Chemistry Analyzer 7180, Japan).

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