Crystal structure of Saccharomyces cerevisiae cytosolic aspartate aminotransferase
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منابع مشابه
Crystal structure of the closed form of chicken cytosolic aspartate aminotransferase at 1.9 A resolution.
The crystal structure of chicken cytosolic aspartate aminotransferase (cAATase; EC 2.6.1.1) has been solved and refined at 1.9 A resolution. Orthorhombic crystals, space group P2(1)2(1)2(1), a = 56.4 A, b = 126.0 A and c = 142.3 A, were grown from polyethylene glycol solutions in the presence of maleate, a dicarboxylic inhibitor that forms a Michaelis-like complex. The pyridoxal form of the enz...
متن کاملCytosolic aspartate aminotransferase encoded by the AAT2 gene is targeted to the peroxisomes in oleate-grown Saccharomyces cerevisiae.
Fatty acid beta-oxidation in peroxisomes requires the continued uptake of fatty acids or their derivatives into peroxisomes and export of beta-oxidation products plus oxidation of NADH to NAD. In an earlier study we provided evidence for the existence of an NAD(H) redox shuttle in which peroxisomal malate dehydrogenase plays a pivotal role. In analogy to the NAD(H)-redox-shuttle systems in mito...
متن کاملChanges in the Level of Mitochondrial and Cytosolic Aspartate Aminotransferase Activities in Aluminium Intoxified Rat
The activity of aspartate aminotransferase (AST) in human serum has been widely determined as a diagnostic aid in liver disease. In this study, the effect of aluminium on AST isoenzymes in relation to aluminium intoxified patients has been investigated. Using gel filtration chromatography technique with Sephacryl S-300, mitochondrial aminotransferase (m-AST) and cytosolic aminotransferase (c-AS...
متن کاملThe amino acid sequence of the aspartate aminotransferase from baker's yeast (Saccharomyces cerevisiae).
1. The single (cytosolic) aspartate aminotransferase was purified in high yield from baker's yeast (Saccharomyces cerevisiae). 2. Amino-acid-sequence analysis was carried out by digestion of the protein with trypsin and with CNBr; some of the peptides produced were further subdigested with Staphylococcus aureus V8 proteinase or with pepsin. Peptides were sequenced by the dansyl-Edman method and...
متن کاملInteraction of AMP with cytosolic apo-aspartate aminotransferase.
Interaction of cytosolic apo-aspartate aminotransferase with AMP has been studied under equilibrium conditions; e.g., equilibrium dialysis and spectrophotometric titration. Results show that a 1:1 stoichiometric complex AMP-apo-aspartate aminotransferase monomer is formed. The calculated dissociation constants with the two different experimental techniques are 40.4 x 10(-6) M-1 and 31.4 x 10(-6...
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ژورنال
عنوان ژورنال: Protein Science
سال: 1998
ISSN: 0961-8368,1469-896X
DOI: 10.1002/pro.5560070614