1.17.99.3 68800 - 2 * 68800, SDS-PAGE 1.17.99.3 69000 - 2 * 69000, SDS-PAGE 1.17.99.3 120000 - gel filtration 1.17.99.3 139000 - gel filtration 1.17.99.3 175000 - non-denaturing PAGE