Purification, crystallization and preliminary X-ray diffraction analysis of a cystathionine β-synthase domain-containing protein, CDCP2, from Arabidopsis thaliana

Cystathione β-synthase domain-containing protein 2 (CDCP2) from Arabidopsis thaliana has been overexpressed and purified to homogeneity. As an initial step towards three-dimensional structure determination, crystals of recombinant CDCP2 protein have been obtained using polyethylene glycol 8000 as a precipitant. The crystals diffracted to 2.4 Å resolution using synchrotron radiation and belonged to the trigonal space group P3₁21 or P3₂21, with unit-cell parameters a = b = 56.360, c = 82.596 Å, α = β = 90, γ = 120°. The asymmetric unit contains one CDCP2 molecule and the solvent content is approximately 41%.