1.8.98.2 11546 - x * 13914, immature enzyme, sequence calculation, x * 11546, mature enzyme, sequence calculation 1.8.98.2 12000 - SDS-PAGE 1.8.98.2 13910 - - 1.8.98.2 13914 - x * 13914, immature enzyme, sequence calculation, x * 11546, mature enzyme, sequence calculation 1.8.98.2 14000 - - 1.8.98.2 15000 - Srx monomer, determined by SDS-PAGE