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Palmitic acid (A) and acetate (B) ligands in MroUPO crystal structures. Ligands, heme cofactor and neighbor Phe160 are shown as sticks (CPK colors) while Mg2+ cations are shown as spheres (when palmitic acid is present in the crystal, the Phe160 side‐chain adopts two different conformations). From PDB entries 5FUK (A) and 5FUJ (B).
