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EC Number pH Minimum pH Maximum Commentary Reference
Display the word mapDisplay the reaction diagram Show all sequences 5.5.1.6-999 - at pH 7.5 reactions of 4,2',4',6'-tetrahydrochalcone and 4,2',4'-trihydrochalcone and 2',4'-dihydroxychalcone are 90% diffusion controlled, whereas cyclization of 4,2'-dihydroxychalcone is limited by a chemical step that likely reflects the higher pKa of the 2'-hydroxyl group. At pH 6.0 the reactions with 4,2',4',6'-tetrahydrochalcone and 4,2',4'-trihydroxychalcone are 50% diffusion limited, whereas the reactions of 2',4'-dihydroxychalcone and 4,2'-dihydroxychalcone are limited by chemical steps 652235
Display the word mapDisplay the reaction diagram Show all sequences 5.5.1.65.2 8 - 748106
Display the word mapDisplay the reaction diagram Show all sequences 5.5.1.66.4 7.6 90% activity 728964
Display the word mapDisplay the reaction diagram Show all sequences 5.5.1.67 10 about 55% activity at pH 7.0, 100% activity at pH around 8.0, about 80% activity at pH 9.0, about 40% activity at pH 10.0 749122
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