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Glycation of Aspartate Aminotransferase and Conformational Flexibility
Biochemical and Biophysical Research Communications, 2000Glycation of proteins alters biological function and changes cellular processes. Our study investigated the conformational changes that accompany glycation using the cardiac aspartate aminotransferase (cAAT). We examined the effects of brief and prolonged exposure of cAAT to glyceraldehyde (Glyc) and ribose 5-phosphate (R5P).
Ines Seibel, Norbert W. Seidler
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Inhibition of coenzyme activation of aspartate aminotransferase
Biochemical and Biophysical Research Communications, 1983Forty compounds were surveyed for their effect on the activation of pig heart apoaspartate aminotransferase by pyridoxamine 5'-phosphate. Most of the nucleotides, sugar phosphates, coenzymes, phospholipid precursors and inorganic oxyanions tested were found to be inhibitory.
Ashok K. Sawhney +2 more
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Essential arginyl residues in aspartate aminotransferases
Biochemical and Biophysical Research Communications, 1975Summary The active sites of the aspartate aminotransferases from both pig heart supernate and beef kidney mitochondria contain functional arginyl residues. Inactivation with butanedione in the presence of borate buffer, its reversal by gel filtration and irreversible inactivation with phenylglyoxal provide strong evidence for a functional role of ...
Roberto Scandurra, James F. Riordan
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Is Aspartate Aminotransferase Enough?
American Journal of Gastroenterology, 2000GIANNINI, EDOARDO GIOVANNI +1 more
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Aspartate aminotransferases like it hot
1994A remarkable tendency towards thermophilicity and thermostability seems to be a general trend of aspartate aminotrasferases (AspAT). This was first discovered by Jenkins et al. (1959) who introduced a vigourous heating step into their purification protocol for pig heart cytosolic enzyme. AspATs from different microorganisms living in different habitats
Gennaro Marino +2 more
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Reactivation of the apoenzyme of aspartate aminotransferase in serum
Clinica Chimica Acta, 1976Apoenzyme of aspartate aminotransferase in serum can be reactivated conveniently by addition of 100 mumoles/l pyridoxal phosphate to the reaction mixture, without extending the usual minimum pre-incubation period in the operation of the LKB 8600 reaction rate analyzer.
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Serum aspartate and alanine aminotransferase in filariasis
Clinica Chimica Acta, 1985Serum aspartate aminotransferase level in filarial patients was estimated. The level was compared against the level of the same enzyme in non-filarial patients. Similarly estimated and compared was the level of serum alanine aminotransferase in the same groups of subjects.
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