4.1.3.1	Ba2+	Ba2+ less effective activator than Mg2+	33121, 33153, 33155	
4.1.3.1	Ba2+	no activation	33147, 33148	
4.1.3.1	Ba2+	partial reactivation after thermal inactivation	33129	
4.1.3.1	Cd2+	5 mM, 90% inhibition of Mg2+-activated enzyme, interaction with catalytic domain induces partial unfolding (revealed by thermal denaturation, far-UV circular dichroism, fluorescence spectra, and glutaraldehyde crosslinking)	701127	
4.1.3.1	Co2+	activating	664083	
4.1.3.1	Co2+	can partly replace Mg2+	638504	
4.1.3.1	Co2+	can replace Mg2+	651215	
4.1.3.1	Co2+	Co2+ 12% as effective as Mg2+	33140	
4.1.3.1	Co2+	Co2+ 17% as effective as Mg2+	33117	
4.1.3.1	Co2+	Co2+ 18% as effective as Mg2+	33141