Examining the origin of catalytic power of Catechol O-Methyltransferase

Research output: Contribution to journalArticle

Abstract

For decades, there has been debate regarding on the origin of catalytic power of enzymes. In this work, we use the approach of computational chemistry to study the enzyme Catechol O-methyltransferase (COMT) and reveal that two current views on the catalytic mechanism of enzymes, the rate promoting vibrations and the electric field may both be viewed as part of the chemical step catalyzed by COMT. However, we show that the rate promoting vibrations causes the electrostatic effect. This work provides insight into the catalytic mechanism of COMT and resolves a long standing controversy regarding this enzyme's mechanism.

Original languageEnglish (US)
JournalACS Catalysis
DOIs
StateAccepted/In press - Jan 1 2019

Keywords

  • Electric Field Preorganization
  • Methyltransferase
  • QM/MM Simulation
  • Rate Promoting Vibrations
  • Transition Path Sampling

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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