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B6db references: 66031006

type Journal Article
authors Sukanya, N. K.; Vaidyanathan, C. S.
title Aminotransferases of Agrobacterium tumefaciens. Transamination between tryptophan and phenylpyruvate
journal Biochem J
ui 66031006
year (1964)
volume 92
number 3
pages 594-8.
keywords Agrobacterium/*enzymology
abstract 1. Evidence is presented to show that the first step involved in the conversion of tryptophan into indolylacetic acid by Agrobacterium tumefaciens involves transamination.
2. A 68-fold purification of an aminotransferase, exhibiting a broad specificity with comparable transaminase activities with tryptophan, valine, leucine and isoleucine as amino donors and phenylpyruvate as acceptor, was achieved.
3. The optimum pH for the enzyme activity is 9-6. The activity at higher pH values, though less than optimurn, is significant.
4. Substrates and pyridoxal phosphate stabilize the enzyme against thermal denaturation.
last changed 2007/11/14 14:50

B6db references