CONVERSION OF L-LEUCINE TO CERTAIN KETO ACIDS BY A TOMATO ENZYME PREPARATION

被引:19
作者
YU, MH
SPENCER, M
机构
[1] Department of Plant Science, University of Alberta, Edmonton, Alta.
关键词
D O I
10.1016/S0031-9422(00)85553-3
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
An enzyme preparation from fresh tomato fruit catalyzed the degradation of l-leucine. The reaction products were separated as their 2,4-dinitrophenylhydrazones and analyzed by TLC. α-Ketoisocaproic acid, the keto acid corresponding to l-leucine, was identified. The conversion was confirmed by studies with l-leucine-U-14C as substrate. Enzyme activity was found to occur predominantly in the supernatant fraction and to decrease with ripening of fruit. © 1970.
引用
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页码:1173 / +
页数:1
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