以重组的谷胱甘肽S-转移酶(GST)和目标蛋白的融合蛋白为靶,通过将其固定于谷胱甘肽琼脂糖凝胶上,可以方便地从噬菌体肽库中筛选目标蛋白的结合肽.用此方法筛选到含WWXF结构的HIV-1病毒蛋白R(Vpr)的结合肽,与经典的将Vpr包被于培养板上的筛选方法相比,此方法具有简便、快速的优点.
Recombinant glutathione S-transferase (GST) Vpr fusion protein was used as target to select Vpr binding peptide from phage peptide library. By immobilized the GST or GST fusion protein to glutathione agarose gel, binding phage could be quickly panned and eluted by reduced glutathione. The sequencing result show that a WWXF motif exist among the Vpr binding peptide. Comparing with the classic biopanning method by coating target protein on plate this provide more quick and convenient way to screen binding protein from phage peptide library.
薛沿宁,段凌浔,R. J. POMERANTZ.以GST融合蛋白为靶从噬菌体肽库中筛选结合肽[J].生物化学与生物物理进展,1999,26(4):381-384
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