Preliminary crystallographic X-ray data for an NAD(P)H:quinone reductase from mouse liver

The hydrophilic form of NAD(P)H:(quinone acceptor) oxidoreductase (EC 1.6.99.2) from mouse liver cytosol has been crystallized in the presence of FAD. X-ray diffraction analysis showed these crystals to be tetragonal and to belong to the I422 space group. The unit cell measured a = b = 246.5 A and c = 70.4 A. Since the subunit molecular weight is 30,000, the asymmetric unit probably contains two pairs of dimers.