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φ/ψ plots of the hydrophobic stretch (residues 47–51) of human (green) and porcine (red; PDB codes 1KIF, 1VE9) DAO-benzoate structures. The φ/ψ combinations of Ala48, Ala49, and Gly50 are diversified among the three structures, while those of Val47 and Leu51 are conserved. [A, B, L] most favored regions; [a, b, l, p] additional allowed regions; [∼a, ∼b, ∼l, ∼p] generously allowed regions.
