The recombinant Cu,Zn superoxide dismutase from the South African frog Xenopus laevis, expressed in E. coli, has been crystallized in a form suitable for high resolution crystallographic investigations. The crystals grow from polyethylene glycol solutions, at pH 6.0, 28° C, and belong to the orthorhombic space group P212121 with unit cell edges a = 73.33, b = 68.86, c = 59.73 Å, one protein dimer (32,000 Mr) per asymmetric unit. Diffraction data have been collected to 3.0 Å resolution, and a molecular replacement solution found for Xenopus laevis superoxide dismutase using the bovine enzyme as search model. The crystallographic R-factor corresponding to this solution is 0.412, in the 15.0-3.0 Å resolution range.
|Number of pages||4|
|Journal||Biochemical and Biophysical Research Communications|
|Publication status||Published - Aug 16 1993|
ASJC Scopus subject areas
- Molecular Biology