1.1.5.3 Ca2+ - 287818 1.1.5.3 Ca2+ 0.7 mM required for half-maximal activation of activity with 2,6-dichlorophenolindophenol in euthyroid rats, 0.002 mM required for half-maximal activation of activity with vitamin K3 in euthyroid rats. Ca2+ causes an alteration in the conformation of the enzyme 287821 1.1.5.3 Ca2+ activated by Ca2+ 690606, 695272 1.1.5.3 Ca2+ activates 287829, 287831, 740095 1.1.5.3 Ca2+ causes a conformational change of both the soluble and membrane-embedded enzyme 287829 1.1.5.3 Ca2+ lowers KM-value for glycerol phosphate 696426 1.1.5.3 Ca2+ the enzyme (mGPDH) activity is allosterically activated by calcium. In isolated brown adipose tissue mitochondria mGPDH enzyme activity is maximal at free calcium ion concentrations in the 350 nM-1000 nM range 763434 1.1.5.3 Cd2+ activates 740095 1.1.5.3 Iron contains 1 gatom of acid liberatable iron per 310000 g of protein 287802 1.1.5.3 Iron contains 1 nmol non-heme iron per mg of protein 287809 1.1.5.3 Iron contains 2 mol of non-heme iron per dimer 287817 1.1.5.3 Iron contains iron 287806, 287812 1.1.5.3 K+ 20 mM NaCl or KCl required for maximal activity 287807 1.1.5.3 Mg2+ activates 287821, 740095 1.1.5.3 Mn2+ activates 740095 1.1.5.3 Na+ 20 mM NaCl or KCl required for maximal activity 287807