Metal Fluorides as Analogs for Studies on Phosphoryl Transfer Enzymes

Research output: Research - peer-reviewArticle

  • Authors:
  • Yi Jin
  • Nigel G. J. Richards
  • Jonathan Waltho
  • George Michael Blackburn


The 1994 structure of a transition-state analogue with AlF4− and GDP complexed to G1α, a small G protein, heralded a new field of research into the structure and mechanism of enzymes that manipulate the transfer of phosphoryl (PO3−) groups. The number of enzyme structures in the PDB containing metal fluorides (MFx) as ligands that imitate either a phosphoryl or a phosphate group was 357 at the end of 2016. They fall into three distinct geometrical classes: 1) Tetrahedral complexes based on BeF3− that mimic ground-state phosphates; 2) octahedral complexes, primarily based on AlF4−, which mimic “in-line” anionic transition states for phosphoryl transfer; and 3) trigonal bipyramidal complexes, represented by MgF3− and putative AlF30 moieties, which mimic the geometry of the transition state. The interpretation of these structures provides a deeper mechanistic understanding into the behavior and manipulation of phosphate monoesters in molecular biology. This Review provides a comprehensive overview of these structures, their uses, and their computational development.

Bibliographical metadata

Original languageEnglish
Pages (from-to)4110-4128
Number of pages19
JournalAngewandte Chemie
Issue number15
Early online date8 Nov 2016
StatePublished - 3 Apr 2017