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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Purification, crystallization and preliminary X-ray crystallographic studies on acetolactate decarboxylase.

Acetolactate decarboxylase has the unique ability to decarboxylate both enantiomers of acetolactate to give a single enantiomer of the decarboxylation product, (R)-acetoin. A gene coding for alpha-acetolactate decarboxylase from Bacillus brevis (ATCC 11031) was cloned and overexpressed in B. subtilis. The enzyme was purified in two steps to homogeneity prior to crystallization. Three different diffraction-quality crystal forms were obtained by the hanging-drop vapour-diffusion method using a number of screening conditions. The best crystal form is suitable for structural studies and was grown from solutions containing 20% PEG 2000 MME, 10 mM cadmium chloride and 0.1 M Tris-HCl pH 7. 0. They grew to a maximum dimension of approximately 0.4 mm and belong to the trigonal space group P3(1,2)21, with unit-cell parameters a = 47.0, c = 198.9 A. A complete data set was collected to 2 A from a single native crystal using synchrotron radiation.[1]


  1. Purification, crystallization and preliminary X-ray crystallographic studies on acetolactate decarboxylase. Najmudin, S., Andersen, J.T., Patkar, S.A., Borchert, T.V., Crout, D.H., Fülöp, V. Acta Crystallogr. D Biol. Crystallogr. (2003) [Pubmed]
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