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  • Title: The cleavage of phosphoenolpyruvate by vanadate.
    Author: Aureliano M, Leta J, Madeira VM, de Meis L.
    Journal: Biochem Biophys Res Commun; 1994 May 30; 201(1):155-9. PubMed ID: 8198568.
    Abstract:
    Vanadate rapidly promotes the cleavage of phosphoenolpyruvate with phosphate liberation. This was not observed when ATP, glucose-6-phosphate and acetyl phosphate were incubated with vanadate. 51V NMR spectra shows that phosphoenolpyruvate and acetyl phosphate broadened and shifted upfield the monomeric vanadate signal at -561 ppm, indicative of vanadate/phosphate interactions. Comparatively, smaller changes were detected when glucose-6-phosphate was added to the vanadate solution. The shift behavior was not observed in the presence of ATP, ADP or pyruvate.
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