Site-selective tagging of proteins by pnictogen-mediated self-assembly

Chem Commun (Camb). 2017 Oct 3;53(79):10894-10897. doi: 10.1039/c7cc06155b.

Abstract

Site-selective chemical protein modification is achieved by self-assembly of a specific di-cysteine motif, trivalent pnictogens (As, Sb or Bi) and an aromatic mercaptomethyl-based probe. The strategy is demonstrated with a quaternary complex involving Zika virus protease and a lanthanide ion, enabling paramagnetic nuclear magnetic resonance spectroscopy and luminescence measurements.

MeSH terms

  • Antimony / chemistry*
  • Arsenic / chemistry*
  • Bismuth / chemistry*
  • Cysteine / chemistry
  • Humans
  • Lanthanoid Series Elements / chemistry
  • Luminescent Measurements / methods
  • Models, Molecular
  • Nuclear Magnetic Resonance, Biomolecular / methods*
  • Peptide Hydrolases / analysis*
  • Sulfhydryl Compounds / chemistry
  • Zika Virus / enzymology*
  • Zika Virus Infection / virology

Substances

  • Lanthanoid Series Elements
  • Sulfhydryl Compounds
  • Antimony
  • Peptide Hydrolases
  • Cysteine
  • Arsenic
  • Bismuth