SoftLink™ Soft Release Avidin Resin【子货号:V201C,包装:1 x 3ml,,运保温度:4°C】
PinPoint™ Xa-1 Vector【子货号:V203A,包装:1 x 10μg,,运保温度:–20°C】
PinPoint™ Xa Control Vector【子货号:V204A,包装:1 x 5μg,,运保温度:–20°C】
PinPoint™ Xa-2 Vector【子货号:V205A,包装:1 x 10μg,,运保温度:–20°C】
PinPoint™ Xa-3 Vector【子货号:V206A,包装:1 x 10μg,,运保温度:–20°C】
PinPoint™ Purification Column【子货号:V556A,包装:1 x 1 each,,运保温度:室温】
Biotin【子货号:V557A,包装:1 x 1ml,,运保温度:4°C】
Streptavidin Alkaline Phosphatase【子货号:V559A,包装:1 x 20μl,,运保温度:4°C】
描述:
说明
PinPoint™ Xa Protein Purification System (PinPoint™ Xa 蛋白纯化系统) 被设计用于制备和纯化体内表达的生物素化的融合蛋白。将编码目的蛋白的DNA 克隆到PinPoint™ Vector(PinPoint™ 载体) 的下游,该位置编码的肽段在体内可被生物素化。生物素化融合蛋白在大肠杆菌内生成,然后用SoftLink™ Soft Release Avidin Resin 进行亲和纯化。该树脂是基于专利技术设计的,可将融合蛋白以非变性形式洗脱出来。PinPoint™ Vector(PinPoint™ 载体) 的特点是含有编码内源蛋白酶因子Xa( 发音为"ten a") 的蛋白水解位点,使得纯化标签可从天然蛋白上分离。载体还带有多克隆区域,便于方便地构建融合蛋白。
该系统中含有几种载体,这些载体涵盖了所有可能的有义读码框。此外,该系统还包含有抗生物素蛋白偶联的树脂、链霉亲和素- 碱性磷酸酶、纯化柱和生物素。系统中的PinPoint™ Xa Control Vector(PinPoint™ Xa 对照载体) 含有氯霉素转乙酰基酶(CAT) 基因,用于监控蛋白表达、纯化和加工条件。使用该系统,每升培养物通常的蛋白产量为1-5mg。
The PinPoint™ Xa Protein Purification System is designed for the production and purification of fusion proteins that are biotinylated in vivo. The DNA coding for the protein of interest is cloned into a PinPoint™ Vector downstream of a sequence encoding a peptide that becomes biotinylated in vivo. Biotinylated fusion proteins are produced inE. coliand are affinity-purified using the SoftLink™ Soft Release Avidin Resin. This proprietary resin allows elution of the fusion protein under nondenaturing conditions. The PinPoint™ Vectors feature the encoded endoproteinase Factor Xa (pronounced "ten a") proteolytic site that provides a way to separate the purification tag from the native protein, and the vectors carry a convenient multiple cloning region for ease in construction of fusion proteins.
The system contains vectors in all possible sense reading frames, an avidin-conjugated resin, Streptavidin-Alkaline Phosphatase, a purification column and biotin. The PinPoint™ Xa Control Vector contains the chloramphenicol acetyltransferase (CAT) gene and is provided as a means of monitoring protein expression, purification and processing conditions. The system generally yields 1–5mg of protein per liter of culture.
Features - Benefits
In vivo Biotinylation Tag:Allows purification of fusion proteins; many proteins produced have been soluble.
Easy to Use:Purification of biotinylated proteins with the SoftLink™ Resin can be performed by column or batch purification.
Easy Detection:Streptavidin Alkaline Phosphatase can be used to detect the biotinylated fusion protein in a pseudo-Western format to monitor purification.
Flexible:PinPoint™ Vectors are supplied for all reading frames.
Gentle Release Conditions:SoftLink™ Resin allows release of the fusion protein under nondenaturing conditions.
tacPromoter:Allows tightly regulated expression.
Applications
Purification of milligram amounts of expressed protein.