Mixed SAMs and MALDI-ToF MS: preparation of N-glycosylamine derivative and thioctic acid methyl ester bearing 1,2-dithiolane groups and detection of enzymatic reaction on Au

Bioorg Chem. 2012 Feb;40(1):6-9. doi: 10.1016/j.bioorg.2011.10.004. Epub 2011 Nov 9.

Abstract

Herein, we report an enzymatic galactosylation reaction of β-glucopyranosylamide 4 and thioctic acid methyl ester 5 bearing 1,2-dithiolane groups to form a new system of mixed self-assembled monolayers (SAMs) on gold. Characterization of the enzymatic activity was conveniently achieved by mass spectrometry.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetylglucosamine / analogs & derivatives*
  • Acetylglucosamine / chemical synthesis
  • Acetylglucosamine / chemistry
  • Amines / chemistry*
  • Enzymes / metabolism*
  • Gold / chemistry*
  • Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
  • Surface Properties
  • Thioctic Acid / analogs & derivatives*
  • Thioctic Acid / chemical synthesis
  • Thioctic Acid / chemistry

Substances

  • 1,2-dithiolane
  • Amines
  • Enzymes
  • Thioctic Acid
  • Gold
  • Acetylglucosamine