1.7.3.6	8.5	-	activity with horse heart cytochrome c	
1.7.3.6	8.7	-	-	
1.7.3.6	9	-	-	
1.7.3.6	10	-	activity with pseudoazurin	
1.7.3.6	11	-	activity with cytochrome c550 continues to increase to pH 11