Fig. 7.
DSS cross-linking of β2m on the K562 leukemia cell line. Broad high molecular mass complexes of 150 kD (β2m and its binding protein complex) were generated by cross-linking. Several nonspecific bands were also stained; however, a band of appropriately 150 kD was specifically suppressed by the addition of 100× unlabeled β2m in lane 3.bβ2m, biotinilated β2m.