2.4.1.149 ? x * 45000, calculated from the amino acid sequence -, 638581 2.4.1.149 ? x * 47125, calculated from the amino acid sequence, mature N-glycosylated iGnT: may be approximately 53 kDa 638582 2.4.1.149 monomer 1 * 70000, SDS-PAGE 638578