A genetically encoded aldehyde for rapid protein labelling

Chem Commun (Camb). 2014 Jul 18;50(56):7424-6. doi: 10.1039/c4cc02000f.

Abstract

Using a mutant pyrrolysyl-tRNA synthetase-tRNA(Pyl)(CUA) pair, 3-formyl-phenylalanine is genetically incorporated into proteins at amber mutation sites in Escherichia coli. This non-canonical amino acid readily reacts with hydroxylamine dyes, leading to rapid and site-selective protein labelling.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Aldehydes / chemistry*
  • Green Fluorescent Proteins / chemistry*
  • Green Fluorescent Proteins / genetics*
  • Hydroxylamine / analysis
  • RNA, Transfer / analysis
  • RNA, Transfer / genetics
  • Staining and Labeling / methods*
  • Time Factors

Substances

  • Aldehydes
  • Green Fluorescent Proteins
  • Hydroxylamine
  • RNA, Transfer