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Loop sequences of the variants identified by different bait peptides. Residues in the bait peptide and EF/BG loop sequences are colored according to their chemical nature. The 29 variants selected for subcloning and further characterization are annotated with the variant numbers. A, Variants identified by bait peptides containing the pY+2N motif. B, Variants identified by bait peptides that contain a hydrophobic residue at either the pY+3 or pY+4 position.
