p-Hydroxyphenacyl bromide as photoremoveable thiol label: a potential phototrigger for thiol-containing biomolecules
作者:Alexandre Specht、Sandra Loudwig、Ling Peng、Maurice Goeldner
DOI:10.1016/s0040-4039(02)02194-9
日期:2002.12
p-Hydroxyphenacyl bromide is described as a photoremovable thiol protecting group on three biomolecules containing a free thiol group. The protecting group is efficiently incorporated by chemical coupling to the biomolecule in an ethanol–buffer mixture. The photofragmentations (λ=312 nm) were analyzed by UV, HPLC and MS methods, yielding over 70% of the free biomolecules. The concomitant formation
对羟基苯甲酰溴被描述为三个含有游离巯基的生物分子上的可光除去的巯基保护基。通过在乙醇-缓冲液混合物中化学偶联到生物分子上,有效地结合了保护基。通过UV,HPLC和MS方法分析了光碎裂(λ = 312 nm),产生了超过70%的游离生物分子。衍生自相应硫醇的对羟基苯乙酸硫酯作为含硫副产物的伴随形成,不应妨碍该保护基用于笼统含硫醇生物分子的使用。