Abstract

The NAD(+)-dependent glycerol dehydrogenase (EC 1.1.1.6) from the extremely thermophilic bacterium Thermotoga maritima has been crystallized in the presence of glycerol by the hanging-drop vapour-diffusion method using 2-methyl-2,4-pentanediol (MPD) as the precipitating agent. Crystals of the enzyme complexed with NAD(+) have also been obtained. The crystals belong to the tetragonal system with space group I422 and unit-cell parameters a = 105.3, c = 134.5 A. They diffract to a maximum resolution of 1.4 A using synchrotron radiation (lambda = 0.838 A). Crystals of the enzyme-NAD(+) complex diffract to 2.5 A resolution using in-house Cu Kalpha radiation.

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