Cell Free Protein Expression

Champion™ pET101 Directional TOPO® Expression Kit with BL21 Star™ (DE3) One Shot® Chemically Competent E. coli

Category: Products & Services > Kits & Assays > Protein Expression Kits > Bacterial Expression Kits

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

Champion™ pET SUMO Expression System

Category: Products & Services > Kits & Assays > Protein Expression Kits > Bacterial Expression Kits

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

FreeStyle™ 293 Expression System

Category: Products & Services > Kits & Assays > Protein Expression Kits > Mammalian Expression Kits

The FreeStyle™ 293 Expression System is a complete, suspension cell culture system for generating large amounts of mammalian recombinant protein. Free your lab from the time-consuming, labor-intensive process of seeding, feeding, passing, and maintaining multiple flasks of adherent cells (Figure 1). The FreeStyle™ 293 Expression System combines GIBCO® FreeStyle™ 293 Expression Medium with 293fectin™, a cationic-lipid formulation designed to transfect suspension FreeStyle™ 293-F cells at high efficiency. FreeStyle™ 293-F cells and 293fectin™ are available as part of the Expression System or sep...
Catalog: K9000-01
Size: 1 kit

PichiaPink™ Secreted Protein Kit

Category: Products & Services > Kits & Assays > Protein Expression Kits > Yeast Expression Kits

The PichiaPink™ Secreted Protein Expression Kit is a new recombinant protein expression system based on the yeast Pichia pastoris . The PichiaPink™ Secreted Protein Expression Kit gives you convenient and cost-efficient bioproduction from shake flask to 1000-liter production of your recombinant protein. The PichiaPink™ Secreted Protein Expression Kit comes with our new Pichia strains, the pPINK-HC and pPINK-LC vectors, and secretion signal sequences for production of your protein. • Get started with secreted protein production in Pichia pastoris . • Screen your Pichia transformants rapidly by ...
Catalog: A11151
Size: 1 kit

Champion™ pET100 Directional TOPO® Expression Kit with BL21 Star™ (DE3) One Shot® Chemically Competent E. coli

Category: Products & Services > Kits & Assays > Protein Expression Kits > Bacterial Expression Kits

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

resDNASEQ® Quantitative MDCK DNA Kit

Category: Products & Services > Kits & Assays > Impurity & Contamination Detection Kits > Host Cell DNA & Protein Impurity Quantitation Kits

The resDNASEQ® MDCK Residual DNA Quantitation Kit is a quantitative PCR (qPCR)-based system for the detection of host cell DNA from MDCK (canine kidney) cells, an expression system commonly used for the production of vaccines. Reliable and rapid, the resDNASEQ® system enables sensitive (as low as 1.5 pg DNA/mL test sample) and specific quantitation of MDCK cell DNA. This performance helps ensure a high degree of confidence in quantitation data obtained from a broad range of sample types—from in-process samples to final product—whether the sample contains high molecular weight or sheared DNA. T...
Catalog: 4464335
Size: 100 reactions

resDNASEQ® Quantitative MDCK DNA Kit with PrepSEQ® Residual DNA Sample Preparation Kit

Category: Products & Services > Kits & Assays > Impurity & Contamination Detection Kits > Host Cell DNA & Protein Impurity Quantitation Kits

The resDNASEQ® MDCK Residual DNA Quantitation System is a quantitative PCR (qPCR)-based system for the detection of host cell DNA from MDCK (canine kidney) cells, an expression system commonly used for the production of vaccines. Reliable and rapid, the resDNASEQ® system enables sensitive (as low as 1.5 pg DNA/mL test sample) and specific quantitation of MDCK cell DNA, typically in less than 4 hours. This performance helps ensure a high degree of confidence in quantitation data obtained from a broad range of sample types—from in-process samples to final product—whether the sample contains high...
Catalog: 4464337
Size: 100 reactions

resDNASEQ® Quantitative NS0 DNA Kit

Category: Products & Services > Kits & Assays > Impurity & Contamination Detection Kits > Host Cell DNA & Protein Impurity Quantitation Kits

The resDNASEQ® NS0 Residual DNA Quantitation Kit is a quantitative PCR (qPCR)-based system for the detection of host cell DNA from NS0 (murine myeloma) cells, an expression system commonly used for the production of vaccines. Reliable and rapid, the resDNASEQ® system enables sensitive (as low as 1.5 pg DNA/mL test sample) and specific quantitation of NS0 cell DNA. This performance helps ensure a high degree of confidence in quantitation data obtained from a broad range of sample types—from in-process samples to final product—whether the sample contains high molecular weight or sheared DNA. Thi...
Catalog: 4458441
Size: 100 reactions

resDNASEQ® Quantitative NS0 DNA Kit with PrepSEQ® Residual DNA Sample Preparation Kit

Category: Products & Services > Kits & Assays > Impurity & Contamination Detection Kits > Host Cell DNA & Protein Impurity Quantitation Kits

The resDNASEQ® NS0 Residual DNA Quantitation System is a quantitative PCR (qPCR)-based system for the detection of host cell DNA from NS0 (murine myeloma) cells, an expression system commonly used for the production of vaccines. Reliable and rapid, the resDNASEQ® system enables sensitive (as low as 1.5 pg DNA/mL test sample) and specific quantitation of NS0 cell DNA, typically in less than 4 hours. This performance helps ensure a high degree of confidence in quantitation data obtained from a broad range of sample types—from in-process samples to final product—whether the sample contains high m...
Catalog: 4460364
Size: 100 reactions

resDNASEQ® Quantitative Pichia pastori DNA Kit with PrepSEQ® Residual DNA Sample Preparation Kit

Category: Products & Services > Kits & Assays > Impurity & Contamination Detection Kits > Host Cell DNA & Protein Impurity Quantitation Kits

The resDNASEQ® Pichia pastoris Residual DNA Quantitation System is a quantitative PCR (qPCR)-based system for the detection of host cell DNA from Pichia pastoris cells, an expression system commonly used for the production of recombinant proteins. Reliable and rapid, the resDNASEQ® system enables sensitive (as low as 15 pg DNA/mL test sample) and specific quantitation of Pichia pastoris cell DNA, typically in less than four hours. This performance helps ensure a high degree of confidence in quantitation data obtained from a broad range of sample types—from in-process samples to final product—w...
Catalog: 4464338
Size: 100 reactions

resDNASEQ® Quantitative Pichia pastoris DNA Kit

Category: Products & Services > Kits & Assays > Impurity & Contamination Detection Kits > Host Cell DNA & Protein Impurity Quantitation Kits

The resDNASEQ® Pichia pastoris Residual DNA Quantitation Kit is a quantitative PCR (qPCR)-based system for the detection of host cell DNA from Pichia pastoris cells, an expression system commonly used for the production of recombinant proteins. Reliable and rapid, the resDNASEQ® system enables sensitive (as low as 15 pg DNA/mL test sample) and specific quantitation of Pichia pastoris cell DNA. This performance helps ensure a high degree of confidence in quantitation data obtained from a broad range of sample types—from in-process samples to final product—whether the sample contains high molecu...
Catalog: 4464336
Size: 100 reactions

PFHM-II Protein-Free Hybridoma Medium

Category: Products & Services > Cell Culture & Transfection Reagents > Serum-Free & Specialty Media > Hybridoma Media

Gibco® Protein Free Hybridoma Medium II (PFHM II) is a serum-free, protein-free medium specifically developed for the ability to support the growth of hybridomas for antibody production. Gibco® PFHM II features: • Ability to support suspension and stationary hybridomas and myelomas • Complete, ready-to-use formulation • Serum-free, protein-free formulation Ability to support suspension and stationary hybridomas and myelomas Suitable for the culture of recombinant myeloma lines as well as traditional hybridomas, Gibco® PFHM II provides high cell densities and IgG production. Cholesterol-depende...
Catalog: 23600042
Size: 1 x 10L

Cell Dissociation Buffer, enzyme-free, PBS

Category: Products & Services > Cell Culture & Transfection Reagents > Cell Dissociation Reagents > Cell Dissociation Buffers

Gibco® Cell Dissociation Buffer is a membrane-filtered, isotonic, and enzyme-free solution of salts, chelating agents, and cell-conditioning agents in calcium-free and magnesium-free Phosphate Buffered Saline (PBS). Gibco® Cell Dissociation Buffer is suitable for gentle dissociation of mammalian cells for studies requiring intact cell surface proteins such as ligand binding, flow cytometry, and immunohistochemistry. Gibco® Cell Dissociation Buffer works well with lightly adherent cell lines such as HeLa and NIH 3T3, but is not recommended for routine passage of strongly adherent cells. The dis...
Catalog: 13151-014
Size: 100 ml

PichiaPink™ Expression Strain Set

Category: Products & Services > Competent Cells & Strains > Expression Competent Cells

The PichiaPink™ Expression Strain Set contains the 4 Pichia pastoris strains for use with the PichiaPink™ Expression System Kits. Each strain comes as a frozen stock in YPD media with 15% glycerol. All PichiaPink™ strains have the ade2 deletion. 3 strains have deletions of two protease genes, PEP4 and PRB1 . You can use the PichiaPink™ Expression Strain Set to refill your PichiaPink™ Yeast Expression System Kits. The PichiaPink™ Expression Strain Set includes the following Pichia strains: • PichiaPink™ Strain 1: ade2 • PichiaPink™ Strain 2: ade2 , pep4 • PichiaPink™ Strain 3: ade2 , prb1 • Pic...
Catalog: A11154
Size: 4 × 1ml

Gibco® FreeStyle™ 293 Expression Medium

Category: Products & Services > Cell Culture & Transfection Reagents > Serum-Free & Specialty Media > 293 Media

FreeStyle™ 293 Expression Medium is an animal origin-free, chemically-defined, protein-free medium specifically developed for the ability to support the growth and transfection of 293-F cells in suspension without adaptation. The medium is complete and ready-to-use, with no supplementation required. Gibco® FreeStyle™ 293 Expression Medium features: • Complete and ready-to-use format containing GlutaMAX™ supplement • Ability to support suspension growth and transfection of 293-F cells • Animal origin-free, protein-free and chemically defined formulation • Easy use as part of the FreeStyle™ 293 ...
Catalog: 12338-018
Size: 1000 ml

RORG Human Protein, Ligand Binding Domain, GST-Tagged

Category: Products & Services > Proteins, Enzymes, & Peptides > Receptors & Cell Surface Markers > Nuclear Receptors

Retinoid-related orphan receptor gamma, ligand binding domain (RORG-LBD) is a 58.60 kDa recombinant human protein (amino acids 250-518) expressed as a GST-tagged fusion protein in insect cells. RORG-LBD was expressed and purified in the absence of exogenous ligands, making it ideal for ligand binding and coregulator displacement studies.
Catalog: PV5888
Size: 50 μg

Expi293™ Expression Medium

Category: Products & Services > Cell Culture & Transfection Reagents > Serum-Free & Specialty Media > 293 Media

Expi293™ Expression Medium is a chemically-defined, serum-free, protein-free medium for growth and transfection of suspension-adapted human embryonic kidney (HEK) 293 cells. It is specifically designed as a core component to support high density cultures of Expi293F™ cells in the Expi293™ Expression System for scalable transient protein expression. • Supports growth of suspension 293 cultures to densities of over 1.6 x 10 7 cells/mL, with >95% cell viability • Transfection-compatible serum-free suspension culture medium allowing transfection efficiencies of greater than 70% using ExpiFectamine...
Catalog: A1435101
Size: 1000 ml

CD44 Recombinant Human Protein, His Tag

Category: Products & Services > Proteins, Enzymes, & Peptides > Receptors & Cell Surface Markers > CD & Other Cell Surface Markers

Cluster of Differentiation 44 (CD44), recombinant human protein is supplied as a lyophilized powder. It is suitable for use in analysis of protein structure. In general, recombinant proteins can also be used as an immunogen, as a protein standard, or in cell biology research applications. This recombinant protein was expressed from a DNA sequence encoding the extracellular domain (Met 1-Pro 220) of human CD44 (P16070-1) fused to a polyhistidine tag at the C-terminus. Activity: This recombinant protein has not been tested. Formulation: Lyophilized in PBS, pH7.4, 5% Mannitol, 5% Trehalose, and 0...
Catalog: 12211-H08H-5
Size: 5 µg

FCGR3A (CD16a) Recombinant Human Protein, His Tag, Active

Category: Products & Services > Proteins, Enzymes, & Peptides > Receptors & Cell Surface Markers > CD & Other Cell Surface Markers

Fc gamma receptor III-a (FCGR3A/CD16a), recombinant human protein is supplied as a lyophilized powder. It is suitable for use in analysis of protein structure, studying protein-protein interactions, and cell biology research applications. It can also be used as an immunogen, or as a protein standard. This recombinant protein was expressed from a DNA sequence encoding the extracellular domain (Met 1- Gln 208) of human FCGR3A (P08637-1) fused to a polyhistidine tag at the C-terminus. Activity: Using the Octet RED System, the affinity constant (Kd) of CD16a bound to Human IgG1 was 180nM. Formulat...
Catalog: 10389-H08H-250
Size: 5 × 50 µg

CD27 Recombinant Human Protein, hIgG1-Fc.His Tag, Active

Category: Products & Services > Proteins, Enzymes, & Peptides > Receptors & Cell Surface Markers > CD & Other Cell Surface Markers

Cluster of Differentiation 27 (CD27), recombinant human protein is supplied as a lyophilized powder. It is suitable for use in studying protein-protein interactions, and cell biology research applications. It can also be used as a protein standard. This recombinant protein was expressed from a DNA sequence encoding the extracellular domain (Met 1-Ile 192) of human CD27 (NP_001233.1) fused to the polyhistidine-tagged Fc region of human IgG1 at the carboxy-terminus. Activity: Measured by its ability to bind to recombinant human CD70 . Immobilized recombinant human CD27 at 2 µg/ml (100 µl/well) c...
Catalog: 10039-H03H-25
Size: 25 µg