1.1.5.14	3	6	highest activity between pH 3.0 and 6.0 with 2,6-dichloroindophenol as electron acceptor	760332	
1.1.5.14	4.5	6.4	pH 4.5: about 85% of maximal activity, pH 6.4: about 50% of maximal activity	348282	
1.1.5.14	4.5	6.5	enzymatic activity is significantly inhibited at pH lower than 4.5 or higher than 6.5	706060