6.1.1.14 ? x * 117000, SDS-PAGE 653455 6.1.1.14 ? x * 51000, SDS-PAGE 651043 6.1.1.14 ? x * 72000, wild-type enzyme, SDS-PAGE 652455 6.1.1.14 ? x * 75000, SDS-PAGE 745876 6.1.1.14 ? x * 76919, wild-type enzyme, calculation from nucleotide sequence 140 6.1.1.14 ? x * 77530, calculation from nucleotide sequence 136 6.1.1.14 ? x * 87000-90000, SDS-PAGE, gel filtration in 6 M guanidine-HCl 158 6.1.1.14 dimer - 133 6.1.1.14 dimer 2 * 70000-80000 (alpha), SDS-PAGE, enzyme form isolated in presence of high concentrations of protease inhibitors and dithioerythritol. A tetrameric enzyme form is isolated in presence of minimal concentrations of dithioerythritol 150 6.1.1.14 dimer 2 * 80000, SDS-PAGE 156