Protein Purification and 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

PKN1 (PRK1) Recombinant Human Protein

Category: Products & Services > Proteins, Enzymes, & Peptides > Kinases > Serine⁄Threonine Kinases

PKN1 (PRK1) belongs to the protein kinase C superfamily. This kinase is activated by the Rho family of small G proteins and may mediate the Rho-dependent signaling pathway. This kinase can also be activated by phospholipids.
Catalog: PV3790
Size: 10 µg

Maltose Binding Protein Mouse Monoclonal Antibody (clone R29)

Category: Products & Services > Antibodies & Secondary Detection Reagents > Primary Antibodies > Protein Specific Primary Antibodies

Mouse anti-Maltose Binding Protein; Unconjugated Monoclonal antibody specific to Multiple Maltose Binding Protein. This antibody is validated for use in Western Blot, Immunoassay (ELISA). Anti-Maltose Binding Protein recognizes the expressed product of the MBP gene.
Catalog: 33-5100
Size: 100 µg

SKP2 (S-Phase Kinase-Associated Protein 2) Mouse Monoclonal Antibody (clone 2C8D9), Concentrate

Category: Products & Services > Antibodies & Secondary Detection Reagents > Primary Antibodies > Protein Specific Primary Antibodies

SKP2 (S-phase Kinase-associated Protein 2) belongs to the family of F-box proteins that interact with the Cyclin A-Cdk2 complex. In tumor tissues, SKP2 is expressed widely, such as colon mucinous carcinoma, gastric adenocarcinoma, breast cancer, melanoma, prostate adenocarcinoma, with particularly higher expression on lung adenocarcinoma, lung squamous carcinoma, squamous carcinoma of cervix, endometrial carcinoma, ovary serous carcinoma and leiomyosarcoma. A recent study suggests that SKP2 plays a role in oncogenesis and is involved in the pathogenesis of lymphomas. Positive tissue: Breast ca...
Catalog: 18-7334
Size: 0.5 ml

MAP3K14 (NIK) Recombinant Human Protein

Category: Products & Services > Proteins, Enzymes, & Peptides > Kinases > Serine⁄Threonine Kinases

MAP3K14 (NIK) is structurally related to MAP3Ks. MAP3K14 phosphorylates and activates CHUK (IKKalpha) and IKBKB (IKK beta), which in turn phosphorylate IkB-alpha, releasing NF-KappaB leading to up-regulation of inflammatory response genes.
Catalog: PV4902
Size: 10 µg

MICROB Express ™ Bacterial mRNA Enrichment Kit

Category: Products & Services > Kits & Assays > Nucleic Acid Purification Kits & Reagents > RNA Purification Kits

This Ambion® kit is for the purification of bacterial mRNA by removing rRNA from total RNA. Sufficient reagents for 20 mRNA purifications, each from 10 µg of total RNA are provided. Features of the MICROB Express ™ Kit: • Dramatically increase the sensitivity of array analyses and other procedures • Removes >95% of 16S and 23S rRNA from bacterial RNA • Simple procedure takes less than 2 hours • Works with many Gram positive and Gram negative bacteria Rapid Purification of Bacterial mRNA is Now Possible Isolating mRNA from bacteria has been virtually impossible, until now. The MICROB Express ™ ...
Catalog: AM1905
Size: 20 reactions

Protein Thermal Shift™ Starter Kit

Category: Products & Services > Kits & Assays > Real-Time PCR & Endpoint RT-PCR Kits > qPCR Protein Analysis Kits

Applied Biosystems® Protein Thermal Shift™ kits allow users to employ a dye that binds to exposed hydrophobic residues to monitor the thermal stability of proteins using a real-time PCR instrument in order to identify buffer conditions that stabilize the protein of interest or screen libraries of ligands for compounds that bind the protein of interest. Save Time and Money with Your Sample Screening This solution significantly reduces the time and cost associated with screening samples relative to currently available methods. Protein Thermal Shift™ products that are run on our real-time PCR sys...
Catalog: 4462263
Size: 2000 reactions

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

pSecTag/FRT/V5-His© TOPO® TA Expression Kit

Category: Products & Services > DNA Vectors, Clones, Purified Nucleic Acids & Libraries > DNA Vectors > Mammalian Expression Vectors

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

pcDNA™3.1/V5-His TOPO® TA Expression Kit

Category: Products & Services > DNA Vectors, Clones, Purified Nucleic Acids & Libraries > DNA Vectors > Mammalian Expression Vectors

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

HiMark™ Unstained Protein Standard

Category: Products & Services > Controls, Standards & Ladders > Protein Standards & Ladders > Unstained Protein Standards

The HiMark™ Unstained High Molecular Weight (HMW) Protein Standard is designed for analysis of high molecular weight proteins on Novex® NuPAGE® Tris-Acetate Gels . • Comprehensive – Contains markers with a wide range of high molecular weights, providing 9 protein bands in the range of 30-460 kDa • Convenient – A ready-to-use formulation eliminates the need to heat, reduce, or add sample buffer prior to use • Compatible – Intended for use with NuPAGE® Novex 3-8% and 7% Tris-Acetate Gels under denaturing conditions* *Note: HiMark™ Unstained High Molecular Weight Protein Standard can also be used...
Catalog: LC5688
Size: 250 µl

FluoReporter® FITC Protein Labeling Kit

Category: Products & Services > Labeling & Detection Products > Labels & Labeling Kits > Antibody & Protein Labeling Kits > Protein Labeling Kits

The FluoReporter® FITC Protein Labeling Kit provides a convenient and flexible means for attaching fluorescein (FITC, Ex/Em ~494/518 nm) to your monoclonal or polyclonal antibody (or any protein >30 kDa). The kit supplies the reagents needed for 5 to 10 labeling and separation reactions. Important Features of the FluoReporter® FITC Protein Labeling Kit: • Labeled proteins typically ready to use in under 3 hours with very little hands-on time • Optimized for 0.2–2.0 mg of protein with molecular weight >30 kDa • Labeled proteins are purified using convenient spin filters • Requires the antibody ...
Catalog: F-6434
Size: 1 kit

PI4KB (PI4K beta) Recombinant Human Protein

Category: Products & Services > Proteins, Enzymes, & Peptides > Kinases > Lipid Kinases

PI4KB and PI4KA are the two human type III PI4 kinases, which share sequence similarly with PI3 kinases and phosphorylate the 4 position of phosphotidyl inositol.
Catalog: PV5277
Size: 20 µg

BMPR1A (ALK3) Recombinant Human Protein

Category: Products & Services > Proteins, Enzymes, & Peptides > Kinases > Serine⁄Threonine Kinases

BMPR1A is a Type I member of the TGF beta receptor superfamily of transmembrane ser⁄thr kinases which phosphorylates intracellular SMADs in response to bone morphogenic proteins.
Catalog: PV6038
Size: 10 µg

BaculoDirect™ C-Term Expression Kit

Category: Products & Services > DNA Vectors, Clones, Purified Nucleic Acids & Libraries > DNA Vectors > Insect & Baculovirus Expression Vectors

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: 12562-013
Size: 5 transfections

FGF-Basic Recombinant Mouse Protein

Category: Products & Services > Proteins, Enzymes, & Peptides > Growth Factors, Chemokines & Cytokines

Recombinant Mouse Fibroblast Growth Factor Basic (also known as FGF Basic, bFGF, FGF 2, FGF-β or Heparin Binding Growth Factor) is a bioactive protein intended for use in cell culture applications. FGF-basic is involved in a number of biological processes including embryonic development and differentiation, neuron differentiation, survival, and regeneration, and the proliferation of cells of mesodermal origin and many cells of neuroectodermal, ectodermal, and endodermal origin. • High purity —no interference from other proteins or contaminants • High biological activity —more results with less...
Catalog: PMG0031
Size: 100 µg