5.3.1.15 19500 - x * 19500, estimated from SDS-PAGE 713845 5.3.1.15 22000 - 2 * 22000, SDS-PAGE 715675, 727225 5.3.1.15 22160 - 2 * 22160, calculated from amino acid sequence 715675 5.3.1.15 26756 - 2 * 26756, calculated from amino acid sequence 716074 5.3.1.15 27000 - 2 * 27000, SDS-PAGE 716074 5.3.1.15 40000 - gel filtration, density gradient centrifugation 2638, 2639 5.3.1.15 42000 - gel filtration 674319 5.3.1.15 44000 - gel filtration 715675, 727225, 749201 5.3.1.15 54000 - gel filtration 716074