Alkyne-containing, noncanonical amino acid.
L-Homopropargylglycine (HPG) is an amino acid analogue of methionine that contains a very small modification, specifically an alkyne moiety that can be fed to cultured cells and incorporated into proteins during active protein synthesis. Detection utilises the chemo-selective ligation or “click ” reaction between an azide and an alkyne or cyclo-octyne. The alkyne-modified protein is detected with either fluorescent azide or biotin azide. Detection sensitivity with these reagents in 1-D gels and Western blots is in the low femtomole range and compatible with downstream LC-MS⁄MS and MALDI MS analysis.
163.60 (HCl salt)
Water, DMSO, DMF
>95% (H NMR)
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