6.3.1.9	(NH4)2SO4	optimal up to 50 mM	662802	
6.3.1.9	KCl	optimal up to 50 mM	662802	
6.3.1.9	Mg2+	-	661810	
6.3.1.9	Mg2+	as MgATP2-	662446, 662802	
6.3.1.9	Mg2+	binding sites for N8-glutathionylspermidine , two Mg2+ ions, structure modeling, overview. For the second step of trypanothione synthesis glutathionylspermidine is bound in a way that preferentially allows N1-glutathionylation of N8-glutathionylspermidine, classifying N8-glutathionylspermidine as the favoured substrate	728592	
6.3.1.9	Mg2+	MgATP2- required	971	
6.3.1.9	Mg2+	required	727114, 727951, 744910, 744964, 746173, 746270	
6.3.1.9	Mg2+	required for activity	650657, 652306