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Expi293F™ Cells Gibco™

Expi293F human cells are derived from the 293 cell line, and are a core component of the Expi293 Expression System. They are maintained in suspension culture and will grow to high density in Expi293 Expression Medium. Expi293F cells are highly transfectable and generate superior protein yields compared to standard 293 cell lines in transient protein expression.

Expi293F Cells attributes include:
Suspension culture cells pre-adapted to Expi293 Expression Medium
Demonstrated higher protein expression levels than other 293 cells adapted to Expi293 Expression Medium
Exhibit more rapid cell growth and higher culture viabilities than standard suspension-adapted 293 cells
Consistent transient expression performance of Expi293F cells for over 40 passages beyond thaw
• Also available from a cGMP bank (Cat. No. 100044202)

Frozen cells are supplied in a vial containing 1 ml of cells at 1 x 107 viable cells/ml in Expi293 Expression Medium and 10% DMSO. The cells should be thawed directly into Expi293 Expression Medium. The six-vial multipack eliminates the need to expand and rebank the cells in the lab.

Cells are typically grown in flasks on a shaker platform in a humidified, CO2 cell culture incubator. However, cultures are scalable from volumes of <1 mL in multiwell plates to >10 L in bioreactors. Protein harvest can be performed at 2 to 7 days post-transfection, depending on the protein expressed. For expression of recombinant antibodies, harvest is typically at 5 to 7 days post-transfection. There is no need for culture medium supplementation or batch feeding during expression.

GripTite™ 293 MSR Cell Line Invitrogen™

The GripTite™ 293 MSR Cell Line is a genetically engineered Human Embryonic Kidney (HEK 293) cell line that expresses the human macrophage scavenger receptor and strongly adheres to standard tissue culture plates for dependable results. Developed from a 293-H subclone, GripTite™ 293 MSR cells show the same fast cell growth, high transfection efficiency, and high-level expression characteristics of the parental 293-H cells. Unlike most 293 cells, GripTite® 293 MSR cells dont wash away during the repeated manipulations of routine tissue culture or plate washing protocols (Figure 1). Their superior adherence enables reliable reproduction of ligand-binding, enzymatic, or immunofluorescence assay results.

Use in High-Throughput Applications
The GripTite™ 293 MSR cells enhance performance in high-throughput cell-based, as well as standard tissue culture, applications. Uncontrolled cell loss during high-throughput protocols leads to unreliable results and expensive, time-consuming repeat experiments. Since GripTite™ 293 MSR cells adhere to standard tissue culture treated plastic, theres no need for the costly poly-lysine coated plates typically used in high-throughput analysis. The GripTite™ 293 MSR cells withstand automated plate washing and protocols using liquid handling robots on standard tissue culture plates without significant cell loss (Figure 2).

Flp-In™-CV-1 Cell Line Invitrogen™

Flp-In™ Cell Lines are designed for rapid generation of stable cell lines that express a protein of interest from a Flp-In™ expression vector. These cells contain a single stably integrated FRT site at a transcriptionally active genomic locus. Targeted integration of a Flp-In™ expression vector ensures high-level expression of your gene of interest. There are six Flp-In™ Cell Lines available for the generation of isogenic stable cell lines and a Flp-In™ T-REx™ Cell Line for the generation of tetracycline-regulated stable cell lines. Flp-In™-CV-1, Flp-In™-293, Flp-In™-BHK, Flp-In™-Jurkat, and Flp-In™-3T3 Cell Lines were created by transfecting the parent cell lines with pFRT/lacZeo and selecting for stable Zeocin™- resistant clones. The Flp-In™-CHO Cell Line was created by transfecting CHO cells with pFRT/lacZeo2 and selecting for Zeocin™-resistant clones. The Flp-In™ T-REx™-293 Cell Line contains pFRT/lacZeo and pcDNA™6/TR (from the T-REx™ System) stably integrated. Co-transfection of the Flp-In™ Cell Lines with a Flp-In™ expression vector and the Flp recombinase vector, pOG44, results in targeted integration of the expression vector to the same locus in every cell, ensuring homogeneous levels of gene expression.

Choosing your Flp-In™ Vector/Cell Line Combination
The Flp-In™-CV-1, Flp-In™-293, Flp-In™-CHO, and Flp-In™-Jurkat Cell Lines (Figure 1) work well with Flp-In™ vectors that express a gene from the CMV promoter (pcDNA™5/FRT, pcDNA5/FRT/V5-His-TOPO®, and pSecTag/FRT/V5-His-TOPO®). Flp-In™-BHK and Flp-In™-3T3 cells tend to down regulate the CMV promoter. Therefore, it is recommended that the Flp-In™ vectors containing the EF-1α promoter (pEF5/FRT/V5-DEST™ and pEF5/FRT/V5-D-TOPO®) be used with these cell lines.

T-REx™ Jurkat Cell Line Invitrogen™

T-REx™ Cell Lines stably express the tetracycline repressor protein (Table 1). They save significant time and effort when using the T-REx™ System. The T-REx™ Cell Lines are functionally tested by transient transfection with the positive control vector pcDNA™4⁄TO⁄lacZ. T-REx™ Cell Lines exhibit extremely low basal expression levels in the repressed state and high expression upon induction with tetracycline (Figure 1).

HepaRG™ Cells, Cryopreserved Gibco™

The HepaRG™ cell line is an immortalized hepatic cell line that retains many characteristics of primary human hepatocytes. HepaRG™ cells are terminally differentiated and provided in a convenient cryopreserved format. For scientists who need reproducible metabolism data, HepaRG™ cells are an in vitro tool that provides reproducible results in a metabolically complete and scalable system.
• Obtain biologically relevant results from a metabolically complete system
• Assess the drug-drug interaction potential of your compound
• Experience reproducible results from a single population of cells

Biologically Relevant
HepaRG™ cells exhibit many characteristics of primary human hepatocytes including morphology, expression of key metabolic enzymes, expression of nuclear receptors, and drug transporters. Unlike HepG2 and Fa2N-4 cells, HepaRG™ cells have high P450 activity and complete expression of all nuclear receptors.

Predict Metabolism-based Drug-drug Interaction
HepaRG™ cells respond to prototypical P450 inducers and inhibitors to the same extent as primary hepatocytes, allowing HepaRG™ cells to be used to evaluate potential drug-drug interactions.

Infinitely Reproducible
HepaRG™ cells exhibit many characteristics of primary human hepatocytes and are essentially a single donor. These features allow users to obtain physiological relevant results for metabolism-based drug-drug interactions without the concern of donor variability and limited lot sizes that come with relying on donor tissue. (Note: The cells we provide are terminally differentiated).

HepaRG™ is a trademark of BioPredic International.

Expi293F™ GnTI- Cells Gibco™

The Expi293F GnTI- cell line is derived from engineered Expi293F cells that do not have N-acetylglucosaminyltransferase I (GnTI) activity and therefore lack complex N-glycans. It is a powerful tool for the high-yield expression of homogeneously glycosylated recombinant proteins.

Features of Expi293F GnTI- cells include:
• Suspension, high-density culture in Expi293 Expression Medium
• Homogeneous N-glycosylation of expressed proteins
• Equivalent protein yields to parental Expi293F cells—up to 1 g/L
• Significantly higher protein yields than other HEK293 GnTI- cell line alternatives

Frozen cells are supplied in a vial containing 1 mL of cells at 1 x 107 viable cells/mL in Expi293 Expression Medium and 10% DMSO. The cells should be thawed directly into Expi293 Expression Medium.

Mimic™ Sf9 Insect Cells Gibco™

Mimic™ Sf9 Insect Cells are a derivative of the Sf9 insect cell line. These cells have been modified to stably express a variety of mammalian glycosyltransferases. Typically, insect cells are unable to process N-glycans to the extent that mammalian cells do. This can affect protein structure, function, antigenicity, and enzymatic activity. The addition of mammalian glycosyltransferases to the Mimic™ Sf9 Insect Cells allows for production of biantennary, terminally sialyated N-glycans from insect cells (1). The cells can be used to produce more mammalian-like proteins in both baculovirus and stable insect expression systems.

1 ml of Mimic™ Sf9 Insect Cells are provided frozen in 60% complete TNM-FH, 30% FBS, 10% DMSO at a concentration of 107 cells/ml. Store frozen Mimic™ Sf9 Insect Cells in liquid nitrogen. Cells are guaranteed stable for 6 months when properly stored.

Human OCT2 SLC Transporter Cells Gibco™

TRANSiPORT Human OCT2 SLC Transporter Cells are HEK293 cells that transiently overexpress the OCT2 solute carrier (SLC) transport protein. Solute carriers are a super-family of membrane transporters that can affect pharmacokinetics and drug exposure by governing the transport of solutes in and out of cells. The OCT2 SLC transporter protein is found in kidney proximal tubule cells.

• Assess potential for transporter-mediated drug metabolism
• Easy to use format
• Obtain high quality results with a large signal-to-noise ratio

Choice of measurement system
Cell-based assays can be performed using radioisotope-labeled compounds, fluorescence-labeled compounds, or non-labeled compounds. The amount of substrate transported into the cells can be measured directly using a liquid scintillation counter, fluorescence plate reader, or LC-MS/MS, thereby allowing direct evaluation of SLC transporter activity.

Assay reliability
Mock HEK293 cells (Cat. No. GM1001) that do not overexpress the SLC transporter are available for use as a negative experimental control. Some compounds may demonstrate high background levels of transport due to the presence of endogenous transporters or non-specific binding.

Rapid results
The convenient product format enables data generation in 2 days from thawing of the cells to final results.

Related products
GM1002 Human OATP1B1 Transporter Cells
GM1003 Human OAT1 Transporter Cells
GM1004 Human OAT3 Transporter Cells
GM1006 Human OATP1B3 Transporter Cells
GM1008 Human OCT1 Transporter Cells
GM1013 Human NTCP Transporter Cells
GM1014 Human MATE1 Transporter Cells
GM1015 Human MATE2K Transporter Cells
GM1001 Mock Cells

ExpiCHO-S™ Cells (cGMP Banked) Gibco™

ExpiCHO-S Cells are derived from a non-engineered sub-clone that was screened and isolated from CHO-S Chinese hamster ovary (CHO) cells (1). They are a core component of the ExpiCHO Expression System Kit. ExpiCHO-S Cells are maintained in suspension culture, have minimal tendency to clump, and grow to high density in ExpiCHO Expression Medium. As part of the ExpiCHO Expression System Kit, the cells generate superior protein yields by transient transfection compared to standard CHO, 293, and high-density Expi293F cells.

Features of ExpiCHO-S Cells (cGMP Banked) include:
• Derived from the same Master Seed Bank as our standard ExpiCHO-S Cells
• Fully documented cGMP-banked cell line
• A component of the fully integrated, animal origin-free ExpiCHO Expression System for applications requiring cGMP-banked cells
• Flexible commercial licensing options without royalties

Frozen cells are supplied in a vial containing approximately 1.1 mL of cells at 1 x 107 viable cells per mL in ExpiCHO Expression Medium and 10% DMSO. The cells should be thawed directly into ExpiCHO Expression Medium.

Fully documented cGMP cell line
After execution and payment for a Commercial Production License, a Cell Line Documentation Package (>200 pages and specific to the lot of cells purchased) is provided that includes the entire lineage history of the cells starting at receipt of the initial vial at Thermo Fisher Scientific through delivery to the purchaser, as well as all cell line characterization testing reports.

Commercial licensing that is simple, flexible, and without royalties
ExpiCHO-S Cells (cGMP banked) can be purchased directly from our catalog for research use only during internal development. As you move towards commercial use, a flexible Commercial Production or Service License structure is available without the burden of royalties, keeping it simple as a one-time payment. For more information regarding commercial licensing, email us at outlicensing@thermofisher.com.

Reference
1. Wurm, FM. CHO Quasispecies—Implications for Manufacturing Processes (2013) Processes 1:296-311.

Flp-In™-CHO Cell Line Invitrogen™

Flp-In™ Cell Lines are designed for rapid generation of stable cell lines that express a protein of interest from a Flp-In™ expression vector. These cells contain a single stably integrated FRT site at a transcriptionally active genomic locus. Targeted integration of a Flp-In™ expression vector ensures high-level expression of your gene of interest. There are six Flp-In™ Cell Lines available for the generation of isogenic stable cell lines and a Flp-In™ T-REx™ Cell Line for the generation of tetracycline-regulated stable cell lines. Flp-In™-CV-1, Flp-In™-293, Flp-In™-BHK, Flp-In™-Jurkat, and Flp-In™-3T3 Cell Lines were created by transfecting the parent cell lines with pFRT/lacZeo and selecting for stable Zeocin™- resistant clones. The Flp-In™-CHO Cell Line was created by transfecting CHO cells with pFRT/lacZeo2 and selecting for Zeocin™-resistant clones. The Flp-In™ T-REx™-293 Cell Line contains pFRT/lacZeo and pcDNA™6/TR (from the T-REx™ System) stably integrated. Co-transfection of the Flp-In™ Cell Lines with a Flp-In™ expression vector and the Flp recombinase vector, pOG44, results in targeted integration of the expression vector to the same locus in every cell, ensuring homogeneous levels of gene expression.

Choosing your Flp-In™ Vector/Cell Line Combination
The Flp-In™-CV-1, Flp-In™-293, Flp-In™-CHO, and Flp-In™-Jurkat Cell Lines (Figure 1) work well with Flp-In™ vectors that express a gene from the CMV promoter (pcDNA™5/FRT, pcDNA5/FRT/V5-His-TOPO®, and pSecTag/FRT/V5-His-TOPO®). Flp-In™-BHK and Flp-In™-3T3 cells tend to down regulate the CMV promoter. Therefore, it is recommended that the Flp-In™ vectors containing the EF-1α promoter (pEF5/FRT/V5-DEST™ and pEF5/FRT/V5-D-TOPO®) be used with these cell lines.

FreeStyle™ CHO-S Cells Gibco™

FreeStyle™ CHO-S Cells are part of the FreeStyle™ MAX Expression System, which is a breakthrough technology for rapid and high-yield mammalian protein production. This cell line is adapted to high density, serum-freesuspension culture in FreeStyle™ CHO Expression Medium and iscapable of producing high levels of recombinant protein.

CHO-S Cells (cGMP banked) and Media Kit Gibco™

GIBCO® CHO_S Cells (cGMP Banked) and Media Kit have been developed for the growth of Chinese Hamster Ovary (CHO) cells and expression of recombinant proteins in suspension culture. Parental CHO-S cells have been produced, banked and tested to meet cGMP quality standards. The cells have been adapted to CD CHO Medium for serum free suspension growth. The CD CHO Medium is made from animal origin free and chemically defined components. It contains no proteins, hydrolysates, or components of unknown composition. The medium is formulated without L-glutamine for greater stability, and without phenol red to minimize potential for estrogen-like effects.

293A Cell Line Invitrogen™

The 293A Cell Line is a subclone of the 293 Cell Line and has a relatively flat morphology. It facilitates the initial production, amplification and titering of replication-incompetent adenovirus. The cell line contains a stably integrated copy of the E1 gene that supplies the E1 proteins (E1a and E1b) required to generate recombinant adenovirus. The flat morphology of the cells makes the titering procedure easier.

Advantages
• Has flat cell morphology suitable for screening adenoviral constructs

Key Features
• Contains a stably integrated copy of the E1 gene that supplies the E1 proteins (E1a and E1b) required to generate recombinant adenovirus.

Kit includes
• 293A Cell Line provided as a frozen stock in 1 ml of 90% complete media and 10% DMSO

Mock SLC Transporter Cells Gibco™

These cells are intended for use as a negative control in experiments utilizing TRANSiPORT solute carrier (SLC) transporter-overexpressing HEK293 cells. These mock cells do not overexpress the SLC transport protein and so can be used to determine levels of endogenous transport activity as well as non-specific binding of compounds being tested.

Related products
GM1002 Human OATP1B1 Transporter Cells
GM1003 Human OAT1 Transporter Cells
GM1004 Human OAT3 Transporter Cells
GM1005 Human OCT2 Transporter Cells
GM1006 Human OATP1B3 Transporter Cells
GM1008 Human OCT1 Transporter Cells
GM1013 Human NTCP Transporter Cells
GM1014 Human MATE1 Transporter Cells
GM1015 Human MATE2K Transporter Cells

Sf9 cells in Sf-900™ II SFM Gibco™

Gibco® Sf9 cells are commonly used to isolate and propagate recombinant baculoviral stocks and to produce recombinant proteins. Gibco® Sf9 cells are adapted to serum-free suspension culture in Gibco® Sf-900™ II SFM, which saves significant time and expense associated with the adaptation of cultures. Gibco® Sf9 cells (frozen in Gibco® Sf-900™ II SFM) feature:
• Recombinant protein expression from a variety of expression systems
• Good growth in adherent or suspension culture
• Small, regular size that generates even monolayers and plaques
• Documented lineage from a low passage Master Cell Bank
• Quality and performance testing

Recombinant protein expression from a variety of expression systems
High levels of protein expression in Sf9 cells can be obtained using either the BaculoDirect™ Baculovirus Expression System, the Bac-to-Bac® Baculovirus Expression System, or the InsectDirect® Expression System.

Small, regular size that generates even monolayers and plaques
Gibco® Sf9 cells generate a clean, even monolayer and plaques due to their small, round, regular size. Other cells often form more irregular monolayers and plaques.

Documented lineage from a low passage Master Cell Bank
Gibco® Sf9 cells (in Sf-900™ II SFM) were prepared as serum-free, suspension cultures from Sf9 cells that originated at the USDA Insect Pathology Laboratory. The original Sf9 cells were cloned from the parental IPLBSF-21 (Sf21) cell line that was derived from the pupal ovarian tissue of the fall army worm, Spodoptera frugiperda. The serum-free Master Cell Banks were prepared at passage 34.

Quality and performance testing
Each lot of Gibco® Sf9 cells is tested for cell growth and viability post-recovery from cryopreservation. In addition, the Master Seed Bank has been tested for contamination of bacteria, yeast, mycoplasma and virus and has been characterized by isozyme and karyotype analysis.

Product Use
For Research Use Only. Not for any animal or human therapeutic or diagnostic use. Caution: Handle as potentially biohazardous material under at least Biosafety Level 2 containment. This product contains Dimethyl Sulfoxide (DMSO), a hazardous material. Review the Material Safety Data Sheet before handling.
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