Bacterial Expression Topo
The Champion™ pET Expression System yields the highest-level protein production in E. coli . During expression, your protein of interest can reach levels greater than 50 percent of total cellular protein. Based on T7 expression vectors originally developed by Studier and colleagues (1-3), high-level expression is achieved because the T7 RNA polymerase is more processive than native E. coli RNA polymerase and is dedicated to the transcription of your gene of interest. Protein production is further enhanced in the system by the expression strain BL21 Star™ E. coli , which significantly improves ...
Catalog: K100-01
Size: 20 reactions
Size: 20 reactions
The Champion™ pET Expression System yields the highest-level protein production in E. coli . During expression, your protein of interest can reach levels greater than 50 percent of total cellular protein. Based on T7 expression vectors originally developed by Studier and colleagues (1-3), high-level expression is achieved because the T7 RNA polymerase is more processive than native E. coli RNA polymerase and is dedicated to the transcription of your gene of interest. Protein production is further enhanced in the system by the expression strain BL21 Star™ E. coli , which significantly improves ...
Catalog: K101-01
Size: 20 reactions
Size: 20 reactions
Using restriction enzymes to clone your gene into an expression vector often forces you to compromise the final sequence of your insert (Figure 1A), especially when there are no useful restriction sites close to your genes coding sequence. This may result in suboptimal spacing of expression elements or incorporation of non-native amino acid residues, which can reduce your expression levels and/or cause the production of non-functional protein. In addition to being a more effective way to clone, TOPO® Cloning eliminates these potential expression problems. TOPO® Expression Vectors enable you to...
Catalog: K4202-01
Size: 20 reactions
Size: 20 reactions
The Champion™ pET SUMO Expression System produces the highest levels of soluble protein in E. coli . It utilizes a small ubiquitin-related modifier (SUMO) fusion, belonging to the growing family of ubiquitin-related proteins, to enhance the solubility of expressed fusion proteins. In contrast to ubiquitin, SUMO is involved in the stabilization and localization of proteins in vivo . After expression, the 11 kd SUMO moiety can be cleaved by the highly specific and active SUMO (ULP-1) protease at the carboxyl terminal, producing a native protein*. The Champion™ pET SUMO Protein and Peptide Expres...
Catalog: K300-01
Size: 20 reactions
Size: 20 reactions
The DES® TOPO® TA Expression Kit offers one-step cloning of PCR products directly into an inducible DES® expression vector. The kit uses the linearized, topoisomerase I-activated pMT/V5-His-TOPO® vector for fast and easy cloning and subsequent high-level expression. Topoisomerase activation of this vector allows PCR products to be ligated in just 5 minutes on your bench top to produce >85%recombinants. The pMT/V5-His-TOPO® vector has all of the features of the pMT/V5-His vector to simplify protein expression, detection, and purification of recombinant proteins in Drosophila S2 cells.
Catalog: K4125-01
Size: 20 reactions
Size: 20 reactions
The Vivid Colors™ pcDNA™6.2 Fluorescent Protein TOPO® Expression Vectors (Figure 1) allow you to rapidly clone your gene and fuse it to the widely used and well characterized Fluorescent Proteins (FPs) from the jellyfish Aequorea victoria (1, 2). These powerful TOPO® cloning vectors contain the Emerald Green Fluorescent Protein (EmGFP) or the Yellow Fluorescent Protein (YFP) for simple, non-invasive detection of recombinant protein (Figure 2). Both FPs have been humanized for optimal mammalian expression (3). The Vivid Colors™ pcDNA™6.2 Fluorescent Protein TOPO® Expression Vectors offer: • Top...
Catalog: K359-20
Size: 20 reactions
Size: 20 reactions
The ViraPower™ HiPerform™ Lentiviral FastTiter™ TOPO® Expression Kit includes all the components needed to generate lentivirus, including vector kit, 293FT cell line, and the support kit. This kit combines Invitrogen’s ViraPower™ HiPerform™ Lentiviral and TOPO® technologies to facilitate quick PCR-based cloning and lentiviral-based, high-level expression of a target gene in dividing and non-dividing mammalian cells. The pLenti7.3/V5-TOPO® vector is equipped with two key genetic elements, making it a HiPerform™ vector: the Woodchuck Posttranscriptional Regulatory Element (WPRE) and the central ...
Catalog: K5320-00
Size: 1 kit
Size: 1 kit
The pcDNA™ vectors are designed for high-level, constitutive expression in a variety of mammalian cell lines. The pcDNA3.2/GW/D-TOPO vector offers the following key features: •Cytomegalovirus (CMV) promoter for high-level expression •Adapted for Directional TOPO® Cloning, enabling you to use proofreading polymerases and to clone your PCR products in a specific orientation •Neomycin resistance gene for stable selection •C-terminal V5 tag for easy detection •Ampicillin resistance gene and pUC origin for selection and maintenance in E. coli TOPO® Cloning Using restriction enzymes to clone your ge...
Catalog: K2440-20
Size: 20 reactions
Size: 20 reactions
Using restriction enzymes to clone your gene into an expression vector often forces you to compromise the final sequence of your insert (Figure 1A), especially when there are no useful restriction sites close to your genes coding sequence. This may result in suboptimal spacing of expression elements or incorporation of non-native amino acid residues, which can reduce your expression levels and/or cause the production of non-functional protein. In addition to being a more effective way to clone, TOPO® Cloning eliminates these potential expression problems. TOPO® Expression Vectors enable you to...
Catalog: K6025-01
Size: 20 reactions
Size: 20 reactions
The pcDNA™3.1/V5-His TOPO® TA Expression Kit offers one-step cloning of Taq -amplified PCR products into a high-level expression vector. Topoisomerase activation of the pcDNA3.1/V5-His-TOPO® vector allows PCR products to be ligated in just 5 minutes on your bench top and results in 90% recombinants. In addition, the vector includes the following features: Strong CMV promoter for high-level, constitutive expression. C-terminal V5 epitope tag for efficient detection of recombinant proteins with an Anti-V5 antibody. C-terminal polyhistidine (6xHis) sequence for purification using nickel-chelating...
Catalog: K4800-40
Size: 40 reactions
Size: 40 reactions
The pcDNA™3.1 Directional TOPO® Expression Kit uses linearized, topoisomerase I-activated pcDNA3.1D/V5-His-TOPO® for five-minute directional cloning and subsequent high-level expression. Directional Cloning technology facilitates expression experiments because: A proofreading enzyme is used for fewer errors in cloned genes Greater than 90% of the clones are in the correct orientation for expression, reducing time spent colony screening for clone orientation In addition, pcDNA3.1D/V5-His-TOPO® provides strong expression levels from the CMV promoter and the option of a C-terminal V5-His fusion t...
Catalog: K4900-40
Size: 40 reactions
Size: 40 reactions
The ViraPower™ Lentiviral Directional TOPO® Expression Kit includes all the components needed to generate lentivirus, including vector kit, 293FT cell line, and the support kit. It combines Invitrogen’s ViraPower™ Lentiviral and Directional TOPO® technologies to facilitate quick PCR-based cloning and lentiviral-based expression of a target gene in dividing and non-dividing mammalian cells. The pLenti6⁄V5-D-TOPO® vector has the CMV promoter for driving constitutive expression of the target gene and the blasticidin selection marker for stable selection in mammalian cells. Advantages • Lentivirus...
Catalog: K4950-00
Size: 1 kit
Size: 1 kit
The pcDNA™3.3-TOPO® vector is designed to deliver exceptionally high levels of transgene expression in adherent cells as well as in the FreeStyle™ MAX CHO and FreeStyle™ MAX 293 suspension cell systems. The pcDNA3.3™-TOPO® TA Cloning® Kit is supplied with the TOPO®-adapted plasmid vector, all reagents for cloning, and One Shot® TOP10 competent cells. The pcDNA™3.3-TOPO® vector offers the following benefits: • TOPO® adapted for cloning PCR products with >85% efficiency • High-level gene expression in a wide range of mammalian cells due to the native cytomegalovirus (CMV) immediate-early promote...
Catalog: K8300-01
Size: 20 reactions
Size: 20 reactions
The pLenti6⁄V5 Directional TOPO® Cloning Kit contains the TOPO®-adapted ViraPower™ lentiviral expression vector, pLenti6⁄V5-D-TOPO® for quick PCR-based cloning and high-level expression of a target gene in dividing and non-dividing mammalian cells. The vector has the CMV promoter for driving high-level, constitutive expression of the target gene and the blasticidin selection marker for stable selection in mammalian cells. Advantages • High efficiency and rapid cloning • Constitutive gene expression in dividing and non-dividing mammalian cells in vitro or in vivo • Produces replication-incompet...
Catalog: K4955-10
Size: 20 reactions
Size: 20 reactions
Invitrogen's™ pLenti6.3⁄V5™-TOPO®Cloning Kit is part of our ViraPower™ HiPerform™ Lentiviral Expression System (catalog K5310-00). The pLenti6.3⁄V5™-TOPO® -TA Cloning Kit contains the TOPO®- adapted ViraPower™ HiPerform™ lentiviral expression vector, pLenti6.3⁄V5™-TOPO® for quick PCR-based cloning and high-level expression of a target gene in dividing and non-dividing mammalian cells. The pLenti6.3⁄V5™-TOPO® vector is equipped with two key genetic elements, making it a HiPerform™ vector: the Woodchuck Posttranscriptional Regulatory Element (WPRE) and the central Polypurine Tract (cPPT) sequenc...
Catalog: K5315-20
Size: 1 kit
Size: 1 kit
To fit all of your expression needs, Invitrogen offers state-of-the-art Gateway® destination vectors for expression in E. coli , insect, yeast, or mammalian cells, as well as for production of native protein or N- or C-terminal fusion proteins. All Gateway® destination vectors have att R sites for recombination with any att L-flanked fragment, regardless of whether it is an entry clone or an Ultimate™ RF Clone. The following table lists the wide range of destination vectors available. Additional materials required, available separately: Gateway® entry clone, Gateway® LR Clonase® enzyme mix, an...
Catalog: 11801-016
Size: 6 µg
Size: 6 µg
To fit all of your expression needs, Invitrogen offers state-of-the-art Gateway® destination vectors for expression in E. coli , insect, yeast, or mammalian cells, as well as for production of native protein or N- or C-terminal fusion proteins. All Gateway® destination vectors have att R sites for recombination with any att L-flanked fragment, regardless of whether it is an entry clone or an Ultimate™ RF Clone. The following table lists the wide range of destination vectors available. Additional materials required, available separately: Gateway® entry clone, Gateway® LR Clonase® enzyme mix, an...
Catalog: 11802-014
Size: 6 µg
Size: 6 µg
To fit all of your expression needs, Invitrogen offers state-of-the-art Gateway® destination vectors for expression in E. coli , insect, yeast, or mammalian cells, as well as for production of native protein or N- or C-terminal fusion proteins. All Gateway® destination vectors have att R sites for recombination with any att L-flanked fragment, regardless of whether it is an entry clone or an Ultimate™ RF Clone. The following table lists the wide range of destination vectors available. Additional materials required, available separately: Gateway® entry clone, Gateway® LR Clonase® enzyme mix, an...
Catalog: 11803-012
Size: 6 µg
Size: 6 µg
The Champion™ pET-DEST42 Gateway® destination vector is designed for rapid cloning with a Gateway® entry clone using lambda phage site-specific recombination and subsequent high-level prokaryotic expression controlled by the strong bacteriophage T7 promoter. Expression is induced by the production of T7 RNA polymerase in BL21(DE3) E. coli. The Champion™ pET-DEST42 destination vector offers: Bacteriophage T7 lac promoter for high-level expression O operator sequences for lac repressor binding to ensure tighter regulation of transcription pBR322 ori for minimal basal expression C-terminal V5 and...
Catalog: 12276-010
Size: 6 µg
Size: 6 µg
The pBAD/His Kit provides all of the necessary reagents to express your protein in a tightly regulated fashion. The vector pBAD/His allows you to express your protein with an N-terminal tag. The vector provides: The araBAD promoter for tightly regulated expression Translation initiation signals optimized for E. coli expression N-terminal polyhistidine (6xHis) tag for purification with nickel-chelating resin and detection with an Anti-HisG Antibody N-terminal Xpress™ epitope for detection and analysis with an Anti-Xpress™ Antibody Enterokinase cleavage site for removing the N-terminal tag follo...
Catalog: V430-01
Size: 1 kit
Size: 1 kit
Bacterial Expression Topo
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