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Crystal structure
PDB 1ACO — pig mitochondrial aconitase with trans-aconitate (cis-aconitate analog) bound, Lauble H et al., J Mol Biol 1994, PMID:8151704.
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Mechanism — fluorocitrate trap
Lauble H, Kennedy MC, Emptage MH, et al., Proc Natl Acad Sci USA 1996, PMID:8942997 — the [4Fe-4S] unique Fe is the Lewis acid binding the substrate hydroxyl; His101 is the catalytic base for dehydration/rehydration.
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Sequence
Human mitochondrial aconitase ACO2 UniProt Q99798 · NCBI Gene 50; cytosolic ACO1/IRP1 UniProt P21399
› Backbones and ligand poses are taken directly from the listed PDB entries,
superposed into one common frame. Where no crystalline state exists for a step
(e.g., citrate/isocitrate approach), the pose is drawn schematically and labeled
as such in the narration.