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Tryptophan synthetase in plants

Nair, Madhusudanan P and Vaidyanathan, CS (1961) Tryptophan synthetase in plants. In: Archives of Biochemistry and Biophysics, 93 (2). pp. 262-263.

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Official URL: http://dx.doi.org/10.1016/0003-9861(61)90260-0


Infiltration experiments with the intact seeds of Bengal gram (Cicer arietinum) indicated that indole and serine are the immediate precursors of tryptophan in this legume. The enzyme, tryptophan synthetase, has been demonstrated in cell-free extracts of the resting seeds. The optimum pH of the reaction was 5.5, and the Km value for indole at a constant serine concentration of 10−4M was 0.57 × 10−4M. There was a specific requirement for pyridoxal phosphate. Heavy-metal ions were inhibitory.

Item Type: Journal Article
Publication: Archives of Biochemistry and Biophysics
Publisher: Elsevier Science
Additional Information: Copyright of this article belongs to Elsevier Science.
Department/Centre: Division of Biological Sciences > Biochemistry
Date Deposited: 23 Jun 2010 06:39
Last Modified: 19 Sep 2010 06:09
URI: http://eprints.iisc.ac.in/id/eprint/28473

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