Supplementary Figure 2: Structural model validation (related to Fig. 2)

a, MBP pulldown assay where the indicated MBP-53BP1 Tudor proteins were incubated with GST-UbvG08. b, Peptide pulldown assays where the immobilized biotin-H4K20me2 peptide was used to retrieve MBP-53BP1 Tudor or the proteins as indicated. IB, immunoblot. Please note that the blots shown are cropped and the uncropped versions can be found as Supplementary Information.