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Arylmalonate decarboxylase-a highly selective bacterial biocatalyst with unknown function.

Kenji Miyamoto1, Robert Kourist2

  • 1Department for Biosciences and Bioinformatics, Keio University, 3-14-1 Hiyoshi, Yokohama, 223-8522, Japan.

Applied Microbiology and Biotechnology
|August 28, 2016
PubMed
Summary

Bacterial arylmalonate decarboxylase (AMDase) is a versatile enzyme for synthesizing pure chiral acids. Recent structural and mechanistic studies enhance its synthetic applications, though its natural role is still unclear.

Keywords:
Asymmetric synthesisBiocatalysisCatalytic promiscuityCofactor-free decarboxylasesEnzyme engineeringLyases

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Area of Science:

  • Biocatalysis
  • Enzyme engineering
  • Organic synthesis

Background:

  • Bacterial arylmalonate decarboxylase (AMDase) is a cofactor-free enzyme.
  • It exhibits high enantioselectivity and a broad substrate spectrum.
  • AMDase is valuable for asymmetric synthesis of optically pure arylaliphatic carboxylic acids.

Purpose of the Study:

  • To review recent findings on the molecular mechanism of AMDase.
  • To summarize the synthetic applications of AMDase.
  • To highlight advancements in understanding and engineering AMDase.

Main Methods:

  • Structural determination of AMDase.
  • Mechanistic studies of enzyme catalysis.
  • Enzyme variant generation through protein engineering.

Main Results:

  • Detailed understanding of the catalytic mechanism of AMDase.
  • Development of tailor-made enzyme variants with improved properties.
  • Demonstration of AMDase's broad applicability in asymmetric synthesis.

Conclusions:

  • Recent structural and mechanistic insights have significantly advanced the understanding and application of AMDase.
  • AMDase is a powerful tool for chiral synthesis, with ongoing research focused on further optimization and understanding its biological function.
  • The enzyme's unique properties make it a key target for biocatalysis and enzyme engineering efforts.