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Figure 1.
Peptide conformations within the antigen-binding cleft.
CDC25b (A), IRS2 (B), β-catenin (C), CDC25b-phospho (D),
IRS2-phospho (E), and β-catenin–phospho (F). Blue mesh
indicates unbiased 2Fo-Fc maps contoured at 1σ. Yellow
indicates nonphosphorylated peptides. Green indicates
phosphorylated peptides. The bound peptide is shown from a
side-on view with the α2-helix removed for clarity.
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