A genetically encoded aldehyde for rapid protein labelling†
Abstract
Using a mutant pyrrolysyl-tRNA synthetase-tRNAPylCUA 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.
 
                



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