Crystallization and preliminary X-ray analysis of a dye-linked D-lactate dehydrogenase from the aerobic hyperthermophilic archaeon Aeropyrum pernix

A dye-linked D-lactate dehydrogenase from the aerobic hyperthermophilic archaeon Aeropyrum pernix was crystallized using the hanging-drop vapour-diffusion method with polyethylene glycol 8000 as the precipitant. The crystals belonged to the monoclinic space group P2₁, with unit-cell parameters a = 63.4, b = 119.4, c = 70.2 Å, β = 112.0°, and diffracted to 2.0 Å resolution on the BL26B1 beamline at SPring-8. The overall R_merge was 4.5% and the completeness was 99.8%.