1.2.98.1	Zinc	-	
1.2.98.1	Zinc	each subunit of the tetramer contains 2 mol zinc per mol	
1.2.98.1	Zn2+	1.7 mol per mol of enzyme	
1.2.98.1	Zn2+	1.2 mol per mol of enzyme	
1.2.98.1	Zn2+	0.7 mol per mol of enzyme