Fluorocitrate Inhibition of Aconitase: Relative Configuration of Inhibitory Isomer by X-ray Crystallography

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Science  25 Dec 1970:
Vol. 170, Issue 3965, pp. 1412-1414
DOI: 10.1126/science.170.3965.1412


The fluorocitrate isomer that is a strong inhibitor and inactivator of aconitase has been shown by x-ray crystallographic studies on the rubidium ammonium salt to have the configurations (1R : 2R) or (1S : 2S) 1-fluoro-2-hydroxy-1,2,3-propanetricarboxylic acid. A possible mechanism for the action of fluorocitrate is proposed which involves the 1R : 2R isomer suggested from biochemical data.