膜杰作
Star Staining
产品描述（Description）
CD 293 TGE Medium is a proprietary, chemically defined, animal origin-free medium specifically developed for the high-density, suspension culture and transfection of 293 cells. Transient expression of plasmid DNA in HEK293 cells adapted in this medium can get high volumetric productivity of target proteins. Used with BPM BPfectin, 293 Expression MAX-1 and Feed X Supplement together is recommended for higher yield of protein expression.
CD 293 TGE Medium is specifically formulated for use with:
- Suspension HEK293(293T, 293EBNA, 293F) transient expression
- Suspension culture of HEK 293 stable cell line for protein expression
- Large-scale, high-density growth of HEK293 cells in bioreactors
产品特性（Product Features）
- Support suspension HEK 293(293T, 293EBNA, 293F) transient expression
- >200% cell growth and expression performance compared competitive alternatives
- Prepared ready-to-use, with no supplementation required
- Protein free, animal component free, chemically define and regulatory friendly
- Extensive support by cell culture expert
- General Specification
- Usage Protocol
产品参数（General Specification）
| Concentrated | Cell Line | Form | Serum | Endotoxin | Glutamine | Culture Type | Phenol Red |
| 1X | 293 | Liquid | Serum Free | Low | Yes | Suspension Culture | Yes |
| Product Classification | Buffer system | Regulatory Statement | Shelf Life | ||||
| Protein-Free, Chemically Defined;Serum-Free, Animal Origin-Free | Sodium Bicarbonate | For Research and Further Cell Culture Manufacturing Use Only | 12 months | ||||
| Cat. No. | Name of Product | Product Size | Storage | Shipping | |||
| CM-1156-11 | CD 293 TGE Medium, Liquid | 1000mL | at +2-8°C, in dark | Ice pack | |||
操作流程（Usage Protocol）
- Before transfection, passage 293 cells with CD 293 TGE Medium for at least 3 round from an adaptation procedure, seeding density greater than 0.5 ×106 cells/ml, cell viability >95%. Culture at 150-180 rpm depending on your orbital shaker design and single cell distribution status.
- Seed 293 cells at 0.5 ×106 cells/ml and transfer to pre-warmed fresh medium, subsequently grow the cells to 1.5 to 2.2 ×106 cells/ml.
- The day before transfection, dilute the culture with fresh medium to 0.8 to 1.0 ×106 cells/ml and cell density at transfection should range from 1.5 × 106 to 2.0 × 106 cells/ml, provided the doubling time is 24 h and viability is greater than 95%.
- On the day of transfection, using sterile 150 mM NaCl solution to dilute DNA plasmid and add 293 Expression MAX-1 (Catalog # EXP-711) according to the instruction.
-
Add BPfectin (Catalog # TF-1157) at ratio of 3:1 (BPfectin : DNA; volume/weight) to DNA solution mix well with vortex for 3 sec.
Note: DNA dosage for transfection is 1 ug per 1 million cells in culture, and volume of DNA-BPfectin complexes is 5%(v/v) of culture. (e.g. 500 μL to 10 mL culture). - Incubate the complexes at RT for 10 min before transfection.
- Add DNA-BPfectin complexes to cells at 5% volume ratio mix well gently.
- 24 hours post transfection, add Feed X Supplement (Catalog # CF-1116) to culture at 10% volume ratio (e.g. 1 mL to 10mL culture).
- Harvest for purification typically 7 days post transfection or when cell viability drops below 55%.
相关产品（Related Products）
| Cat. No. | Product Name | Quantity | Storage Conditions |
|---|---|---|---|
| CM-1156-11 | CD 293 TGE Medium, 1X, Liquid | 1000 mL | 2-8°C, in the dark |
| TF-1157-11 | BPfectin | 1.5 mL | -20°C |
| EXP-711-11 | 293 Expression MAX-1 | 1 mL | -20°C |
| CF-1116-12 | Feed X Supplement | 500 mL | 2-8°C, in the dark |
| AC-1112-11 | Anti-Clumping Additive | 1 mL | 2-8°C, in the dark |
活性（Bioactivity）-Bioactivity CELL BASE
Human BMP-2, Tag Free(Cat. No. BM2-H4117) induces alkaline phosphatase production in ATDC5 cells. The EC50 for this effect is 1684-1736 ng/ml (Routinely tested).
>200% cell growth compared competitive alternatives.
