1456890-69-9Relevant articles and documents
Templated alkylation of hexahistidine with Baylis-Hillman esters
Liu, Xing Xin,Melman, Artem
, p. 9042 - 9044 (2013)
Alkylation of one of the imidazole rings of hexahistidine with Baylis-Hillman esters tethered to nitrilotriacetate residue was achieved in aqueous solutions at neutral pH and at micromolar concentrations in the presence of Ni2+, Cu2+, or Zn2+ cations. The utility of the approach for selective functionalization of His-tagged recombinant proteins was demonstrated by attachment of a fluorescent label to recombinant protein A with an alkynyl group followed by a "click" 1,3-dipolar cycloaddition reaction.