4.1.1.18 42000 - 2 * 42000, SDS-PAGE 654982 4.1.1.18 44000 - 2 * 44000, SDS-PAGE 37290 4.1.1.18 76500 - 2 * 76500, SDS-PAGE 728013 4.1.1.18 79000 - 7 * 79000, SDS-PAGE 37300 4.1.1.18 80000 - 10 * 80000, SDS-PAGE 37299 4.1.1.18 80000 - ? * 80000, SDS-PAGE, under native conditions aggregation of up to 10 subunits 37283 4.1.1.18 80000 - x * 80000, equilibrium ultracentrifugation in 6 M guanidine-HCl, SDS-PAGE. Association of the dimeric form to the decamer is concomitant with the increase in ionic strength 37289 4.1.1.18 80000 - x * 80000, SDS-PAGE, high-speed sedimentation equilibrium in presence of 6 M guanidine HCl. Subunits associate or dissociate reversibly as a function of pH and ionic strength. The native decameric form is formed by the cyclic association of five dimers. Its overall appearance is that of two stacked pentameric rings. Higher aggregates result from the linear stacking of decamers to form rodlike particles of indefinite length 37293 4.1.1.18 81000 - 10 * 81000, X-ray crystallography 716768 4.1.1.18 82000 - SDS-PAGE 690597