3.2.1.26 arsenate or phosphate is required 136101 3.2.1.26 Ba2+ 1 mM enhances the extracellular activity about 154%, and enhances the intracellular activity about 202% 717011 3.2.1.26 Ba2+ 136% activity at 1 mM 731028 3.2.1.26 Ba2+ 20% stimulation of activity at 1 mM 679587 3.2.1.26 Ba2+ 50% increased activity at 1 mM 680276 3.2.1.26 Ba2+ about 140% activity at 1 mM 729018 3.2.1.26 Ba2+ activates 136067 3.2.1.26 Ca2+ 145% activity at 10 mM 731028 3.2.1.26 Ca2+ 5 mM, 3.4fold stimulation 656948 3.2.1.26 Ca2+ about 175% activity at 1 mM 729018