2.4.1.90 ? x * 37800, calculated from amino acid sequence 756991 2.4.1.90 ? x * 38000, SDS-PAGE 489540, 756991 2.4.1.90 ? x * 40000-42000, C- or N-tagged enzyme, SDS-PAGE 757639 2.4.1.90 ? x * 42200, SDS-PAGE 489526 2.4.1.90 ? x * 43000, SDS-PAGE 489535 2.4.1.90 ? x * 47000, deglycosylated enzyme form, SDS-PAGE 489508 2.4.1.90 ? x * 48000, glycosylated enzyme form 489508 2.4.1.90 ? x * 50000, SDS-PAGE 757209 2.4.1.90 ? x * 50000-51000, SDS-PAGE 489510 2.4.1.90 ? x * 51000, SDS-PAGE 489466