L. Olivier et al., CRYSTALLIZATION AND PRELIMINARY-X-RAY DIFFRACTION STUDIES OF ESCHERICHIA-COLI GLYCERALDEHYDE-3-PHOSPHATE DEHYDROGENASE, Acta crystallographica. Section D, Biological crystallography, 51, 1995, pp. 245-247
Phosphorylating glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is a
key enzyme in glycolysis. Single crystals of NAD-dependent GAPDH from
Escherichia coli have been obtained by vapour diffusion at room temper
ature using trisodium citrate as precipitant. In almost the same cryst
allization conditions, two kinds of crystals were found to be suitable
for X-ray diffraction. The crystals with only one half of a tetramer
in the asymmetric unit were chosen for high-resolution analysis. They
belonged to space group C222(1), with cell dimensions a = 79.1, b = 18
9.6 and c = 122.2 Angstrom. These crystals diffracted to 1.8 Angstrom
resolution.