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 2.4.1.90 ? x * 53000, SDS-PAGE 489509 2.4.1.90 ? x * 54000, enzyme from milk, SDS-PAGE 489523 2.4.1.90 ? x * 65000-70000, SDS-PAGE 489530 2.4.1.90 ? x * 66000, SDS-PAGE 690003 2.4.1.90 ? x * 70000-75000, SDS-PAGE 489512 2.4.1.90 ? x * 70000-80000, SDS-PAGE 489529 2.4.1.90 dimer 2 * 55000, SDS-PAGE 489554 2.4.1.90 homodimer 2 * 36300, SDS-PAGE 758173 2.4.1.90 monomer 1 * 57000, SDS-PAGE 489531 2.4.1.90 monomer 1 * 74000, SDS-PAGE 489522 2.4.1.90 additional information enzyme possesses a membrane-spanning domain, a cytoplasmic domain, a stem region, and the catalytic domain that faces the lumen 659700