The catalytic cysteine and histidine in the plant acyl-acyl carrier protein thioesterases.

Vol. 271, p. 3417 Page 3417, line 22 of the abstract: The corrected sentence should read: A pH optimal study demonstrates that while the wild-type enzyme has the highest activity between pH 8.5 and 9.5, the mutant H285R shows a shifted optimum to higher pH and a significant increase of activity around pH 12.