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

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

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Abstract

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.

Item Type:Article
Faculty or Institute:Faculty of Agriculture and Food Sciences
ID Code:2221
Deposited By: Nur Izzati Mohd Zaki
Deposited On:11 Nov 2009 07:28
Last Modified:27 May 2013 06:59

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