Are all the parts of a paragraph for the Results section provided? Please explain.
We found that the H384A mutant reduced the kcat value more than 3-fold. The apparent Km values were increased 7-fold for Fru 6-P and 3.5-fold for PPi. The increase of the Km values and the reduction of the kcat value of the H384A mutant suggest that the imidazole group of His384 is important for the binding stability as well as for catalytic efficiency of Fru 6-P and PPi substrates.