Dehalogenation of an anthropogenic compound by an engineered variant of the mouse cytokine macrophage migration inhibitory factor

Chembiochem. 2012 Jun 18;13(9):1270-3. doi: 10.1002/cbic.201200153. Epub 2012 May 21.

Abstract

An unconventional dehalogenase: An engineered variant (I64V/V106L) of the mouse cytokine macrophage migration inhibitory factor (MIF) promiscuously catalyzes the hydrolytic dehalogenation of the xenobiotic organohalogen trans-3-chloroacrylic acid to acetaldehyde. Although the dehalogenase activity of this MIF variant is quite low, it achieves an ~10(9) -fold rate enhancement, matching those of conventional enzymes acting on their natural substrates.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acrylates / chemistry
  • Acrylates / metabolism*
  • Animals
  • Halogenation*
  • Kinetics
  • Macrophage Migration-Inhibitory Factors / chemistry
  • Macrophage Migration-Inhibitory Factors / genetics*
  • Macrophage Migration-Inhibitory Factors / metabolism*
  • Mice
  • Models, Molecular
  • Mutant Proteins / chemistry
  • Mutant Proteins / genetics*
  • Mutant Proteins / metabolism*
  • Protein Conformation
  • Protein Engineering*

Substances

  • Acrylates
  • Macrophage Migration-Inhibitory Factors
  • Mutant Proteins
  • 3-chloroacrylic acid