Extended Data Fig. 1: Measurement of binding affinity between recombinant readers in this study and FITC labeled methyllysine peptides by fluorescence polarization.

a, CBX1 and FITC-H3K9me3 peptide. b, MPP8 and FITC-H3K9me3 peptide. c, BPTF and FITC-H3K4me3 peptide. d, JMJD2A and FITC-H3K4me3 peptide. e, JMJD2A and FITC-H4K20me3 peptide. f, mORC1 and FITC-H4K20me2 peptide. Average values and errors ( ± s.e.m.) were calculated from n = 3 technical replicates.