1994331-17-7

UAA crosslinker 1 hydrochloride is an amber codon used for non-canonical amino acids (ncAAs) incorporation. The ncAAs can be incorporated into proteins in vivo by making use of the promiscuous activity of certain wildtype and engineered aminoacyl-tRNA synthetases[1]. UAA crosslinker 1 (hydrochloride) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

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[1] Kofoed C, et al. Semisynthesis of an Active Enzyme by Quantitative Click Ligation. Bioconjug Chem. 2019 Apr 17;30(4):1169-1174. DOI:10.1021/acs.bioconjchem.9b00110