Purified PXL1LRR protein (with buffer containing 10 mM Bis-Tris pH 6.0, 100 mM NaCl) was incubated with synthesized peptide mixture (0.1 mg for each; Supplementary Table 1) on ice for 1 h. Then, each mixture was subjected to gel filtration (Superdex 200, GE Healthcare) for ...