The old dog and a new trick; mercaptopropionylcysteine (MPA-Cys) peptide thioesters show a surprisingly high reactivity in native chemical ligation (NCL) and allow thiol-additive free reactions. This facilitates sequential NCL reactions and ligation-desulfurization reactions in one-pot formats. The synthetic utility is demonstrated by the synthesis of a SH3 domain.
老狗和新花样;巯基丙酰半胱
氨酸(MPA-Cys)肽
硫酯在天然
化学连接(NCL)中显示出令人惊讶的高反应活性,并允许无
硫醇加成反应。这有助于以一锅形式进行顺序的NCL反应和连接脱
硫反应。通过合成SH3结构域证明了合成效用。