Crystallization and preliminary X-ray characterization of D-3 -hydroxybutyrate dehydrogenase from Pseudomonas fragi.

A recombinant form of D-3-hydroxybutyrate dehydrogenase (EC 1.1.1.30) from Pseudomonas fragi has been crystallized by the hanging-drop method using PEG 3000 as a precipitating agent. The crystals belong to the orthorhombic group P2₁2₁2, with unit-cell parameters a = 64.3, b = 99.0, c = 110.2 Å. The crystals are most likely to contain two tetrameric subunits in the asymmetric unit, with a VM value of 3.29 Å 3 Da^-1. Diffraction data were collected to a 2.0 Å resolution using synchrotron radiation at the BL6A station of the Photon Factory. [ABSTRACT FROM AUTHOR]