Species of coryneform bacteria (Corynebacterium glutamicum, Brevibacterium flavum, and B. ammoniagenes) are capable of transaminating all three of the aromatic pathway intermediates; prephenate, phenylpyruvate, and 4-hydroxy-phenylpyruvate. Two molecular species of aromatic aminotransferase (denoted aminotransferase I and aminotransferase II) were partially purified from C. glutamicum and B. fl...

This study aims to explore the ameliorative effects of L-glutamic acid (L-Glu) against carbon tetrachloride (CCl4) toxicity in male rats. Changes activities alanine and aspartate aminotransferases (ALAT, ASAT) were studied tissues blood Concentrations creatinine, triacylglycerol cholesterol also determined experimental animals. Intraperitoneal administration CCl4 rats led changes animals parame...

A 44-year-old woman was found to have elevated aminotransferases, twice the upper limit of normal. Liver biopsy demonstrated a mixed inflammatory process suggestive of both primary biliary cirrhosis and autoimmune hepatitis (AIH). Prednisone and azathioprine were started, with normalization of aminotransferases. Six months later, she returned with worsening pruritus and re-evaluation demonstrat...

After the approval of bosentan for the treatment of pulmonary arterial hypertension (PAH), European authorities required the introduction of a post-marketing surveillance system (PMS) to obtain further data on its safety profile. A novel, prospective, internet-based PMS was designed, which solicited reports on elevated aminotransferases, medical reasons for bosentan discontinuation and other se...

objectives: diabetes mellitus is associated with biochemical, physiological and pathological alterations in the liver. the aim of this study was to investigate the effects of hydroalcoholic extract of prangos ferulacea (l.) lindle (p.f) on changes in rats´ liver structure and serum activities of alanin and aspartate aminotransferases after alloxan injection. materials and methods: in this study...

Aminotransferases of subfamily Iβ, which include histidinol phosphate aminotransferases (HspATs) and aromatic amino acid aminotransferases (ArATs), are structurally similar but possess distinct substrate specificities. This study, encompassing structural and biochemical characterisation of HspAT and ArAT from Mycobacterium tuberculosis demonstrates that the residues lining the substrate binding...

OBJECTIVES Diabetes mellitus is associated with biochemical, physiological and pathological alterations in the liver. The aim of this study was to investigate the effects of hydroalcoholic extract of Prangos ferulacea (L.) Lindle (P.f) on changes in rats´ liver structure and serum activities of alanin and aspartate aminotransferases after alloxan injection. MATERIALS AND METHODS In this study...

An aminotransferase which catalyzes the final step in methionine recycling from methylthioadenosine, the conversion of alpha-ketomethiobutyrate to methionine, has been purified from Klebsiella pneumoniae and characterized. The enzyme was found to be a homodimer of 45-kDa subunits, and it catalyzed methionine formation primarily using aromatic amino acids and glutamate as the amino donors. Histi...

Plant peroxisomal glyoxylate aminotransferases play central roles within the photorespiratory pathway. Genes encoding glyoxylate aminotransferases have been isolated from several animals and microbes, but only recently have plant homologs been identified. Three Arabidopsis homologs of alanine (Ala):glyoxylate aminotransferase 2 (AGT2) contain a putative type 1 peroxisomal targeting signal (PTS1...

three residues seems to be common to all the serine enzymes and has become known as the ‘charge-relay system’. Its function is to transfer a negative (or partial negative) charge from the aspartic acid residue to the oxygen atom of the hydroxy group of serine. This obviously increases the nucleophilicity of the serine, but the important point is that the charge is developed in the absence of bu...