passages.id: split_1_test_3288_passage
passages.type: progene_text
passages.text: The isolated xylanosome exhibited a high molecular mass of approximately 3.8 x 10(7) Da ( weight average ) using size exclusion chromatography / multi - angle laser light scattering ( SEC / MALLS ) , and was composed of at least 8 subunits with a mass range from 12 to 60 kDa .