Crystallization and preliminary X-ray analysis of the 6-phospho-alpha-glucosidase from Bacillus subtilis.

6-Phospho-alpha-glucosidase (GlvA) is the protein involved in the dissimilation of alpha-glycosides accumulated via a phosphoenolpyruvate-dependent maltose phosphotransferase system (PEP-PTS) in Bacillus subtilis. The purified enzyme has been crystallized in a form suitable for X-ray diffraction analysis. Thin rod-like crystals have been grown by the hanging-drop method in the presence of manganese and NAD. They diffract beyond 2.2 A using synchrotron radiation and belong to the space group I222 (or its enantiomorph) with unit-cell dimensions a = 83.26, b = 102.56, c = 145.31 A and contain a single molecule of GlvA in the asymmetric unit.