3.4.11.3 Ca2+ inhibitory effect of EDTA plus 1,10-phenanthroline can be completely reversed by Zn2+. Ca2+ and Mg2+ increase the potency of Zn2+ for this process 667507 3.4.11.3 Ca2+ reversal of EDTA inhibition 35910 3.4.11.3 Cl- stimulation 35911 3.4.11.3 Co2+ inhibition at high concentration 35898, 35908, 35910 3.4.11.3 Co2+ reverses EDTA inhibition 28290, 35897, 35902, 35907 3.4.11.3 Co2+ stimulates 35912, 35915, 35918 3.4.11.3 Cu2+ partly reverses EDTA inhibition 35897 3.4.11.3 Mg2+ inhibitory effect of EDTA plus 1,10-phenanthroline can be completely reversed by Zn2+. Ca2+ and Mg2+ increase the potency of Zn2+ for this process 667507 3.4.11.3 Mn2+ reversal of EDTA inhibition, inhibition at high concentration 28290, 35910 3.4.11.3 Ni2+ stimulation, reverses EDTA inhibition 35918