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Properties of glutamate dehydrogenase in developing legume fruit. II.The effects of divalent cations.


Citation

Mahmood, Marziah (1983) Properties of glutamate dehydrogenase in developing legume fruit. II.The effects of divalent cations. Pertanika, 6 (1). pp. 63-66.

Abstract / Synopsis

The activity of EDTA-inhibited glutamate dehydrogenase from a crude seed extract of Lupinus angustifolius could be partially or fully restored by the addition of divalent cations to the incubation mixture. Mn2+ and Ca2+ gave the highest stimulations of 67% and 66% of the control, respectively; followed by Zn2+ (59%), Co2+ (55%), Mg2+ (53%) and Cu 2 + (49%). The Mn-deficient enzyme was more sensitive to manganese and more stimulated at a lower manganese concentration than the Mn-sufficient enzyme. However, Mn-deficient enzyme achieved a maximum activity of 91% at 1.4mM Mn2+ while Mn-sufficient enzyme achieved a maximum activity of 105% of control at 2.0mM.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture and Food Sciences
Depositing User: Nur Izzati Mohd Zaki
Date Deposited: 11 Nov 2009 07:28
Last Modified: 13 Apr 2015 04:27
URI: http://psasir.upm.edu.my/id/eprint/2221
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