1.1.2.4	5	9	no activity at pH 5, almost maximum activity at pH 9	389630	
1.1.2.4	5.5	7.5	very low activity with ferricyanide	389624	
1.1.2.4	5.5	8.5	low activity with cytochrome c at pH 5.5, almost maximum activity at pH 8.5	389624	
1.1.2.4	7	10	pH 7.0: about 50% of maximal activity, pH 10.0: about 70% of maximal activity	763102