2.4.1.62 ? x * 43000, recombinant enzyme from CHO-K1 cells, SDS-PAGE 489315, 489316 2.4.1.62 ? x * 54000, SDS-PAGE 489313 2.4.1.62 ? x * 64000, SDS-PAGE -, 489225 2.4.1.62 monomer 1 * 62000, form 1, SDS-PAGE 489312 2.4.1.62 monomer 1 * 65000, form 2, SDS-PAGE 489312