Design and synthesis of a bifunctional label for selection of β-lactamase displayed on filamentous bacteriophage by catalytic activity
作者:Jacqueline Marchand-Brynaert、Michèle Bouchet、Roland Touillaux、Cécile Beauve、Jacques Fastrez
DOI:10.1016/0040-4020(96)00197-4
日期:1996.4
A bifunctional activity label has been constructed for the selection of active β-lactamases displayed on filamentous bacteriophage. It features an original 6-sulfonylamido-penam sulfone moiety, as β-lactamase suicide-inhibitor, and a biotinyl residue, for separation by affinity chromatography, connected through a linker including a cleavable disulfide bond. The inhibitor resulted from coupling of methoxymethyl
已经构建了双功能活性标记,用于选择在丝状噬菌体上展示的活性β-内酰胺酶。它具有原始的6-磺酰胺基-penam砜部分(作为β-内酰胺酶自杀抑制剂)和生物素残基,可通过亲和色谱分离,并通过包含可裂解二硫键的连接子进行连接。该抑制剂的产生是通过将6-甲氧基甲基甲氧基甲基甲氧基甲基与N-保护的(氨基乙氧基)乙氧基乙烷磺酰氯偶联,然后氧化成相应的砜,然后进行通常的脱保护。生物素酯与3-(2-氨基乙基二硫代)丙酸作为连接基反应,得到五氟酚酯,将其进一步活化。最终耦合了构建基块并给出了目标标签。