The metabolism of aromatic vompounds in higher plants VII. The origin of the nitrile nitrogen atom of dhurrin (B-D-glucopyranosyloxy-L-P-hydroxymandelonitrile)

Uribe, E.G. and Conn, E.E. (1966) The metabolism of aromatic vompounds in higher plants VII. The origin of the nitrile nitrogen atom of dhurrin (B-D-glucopyranosyloxy-L-P-hydroxymandelonitrile). Journal of Biological Chemistry, 241 (1). pp. 92-94.

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Abstract

The data obtained in these experiments show that the nitrile nitrogen of dhurrin is directly derived from the a-amino group of L-tyrosine. This is analogous to the retention of the a-amino nitrogen of valine on its conversion to linamarin (6). The biosynthetic route from L-tyrosine to dhurrin must involve the modification of the amino acid in a manner such that the C&z-N unit remains intact. 15N analyses of the amino acids isolated after L-tyrosiner 14C, 15N feeding suggest that the L-tyrosine-L-alanine transaminatin couple is moe acive than the L-tyrosine-L-glutamic acid couple.

Item Type:	Article
Author Affiliation:	Department of Biochemistry and Biophysics, University of California, Davis, California
Subjects:	Plant Physiology and Biochemistry > Plant Physiology Plant Physiology and Biochemistry > Biochemistry
Divisions:	Other Crops
Depositing User:	Sandhya Gir
Date Deposited:	14 Nov 2010 21:35
Last Modified:	29 Dec 2010 20:32
URI:	http://eprints.icrisat.ac.in/id/eprint/618

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