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CHO Protein-Free Cell Line from Chinese hamster ovary cells
产品性质
| biological source【生物来源】 | hamster ovary |
| description【描述】 | Chinese hamster ovary |
| growth mode【生长模式】 | Suspension |
| karyotype【核型】 | Not specified |
| morphology【形态学】 | Suspension |
| products【产品】 | Not specified |
| receptors【受体】 | Not specified |
| technique(s) | cell culture | mammalian: suitable |
| shipped in【运输】 | dry ice |
| storage temp.【储存温度】 | −196℃ |
基本信息
| Cell Line Origin【细胞系来源】 | Chinese hamster ovary |
| Cell Line Description【细胞系描述】 | A subclone of the parental CHO line originated by Puck in 1957. The cells have an absolute requirement for L-proline. The cells have been adapted for growth in Sigma CHO Protein Free Medium (C5467). They have been cryopreserved in Sigma Cell Freezing Medium - Serum Free (C2639). |
| Culture Medium【培养基】 | Sigma CHO-protein free medium + 4mM Glutamine. Cells should be frozen in either Sigma Cell Freezing Medium - Serum Free (C2639) with 10% DMSO or Sigma CHO Protein Free Medium (C5467) with 7.5%-10% DMSO |
| Subculture Routine【传代培养常规】 | Viability may be poor on resuscitation and may initially decrease further. Full recovery may take up to 2 weeks. A centrifugation step to remove the cryoprotectant is essential. Rapidly thaw the frozen ampoule in a water bath at 37℃ for 1-2 minutes. Transfer the contents to a centrifuge tube and slowly add 5-10ml of pre-warmed growth media. Remove a sample for counting. Centrifuge at 100g for 2-3 minutes to pellet cells and seed at a relatively high density of 5-7 x 105 cells/ml. Leave culture flask upright and observe regularly until viable proliferating cells are seen. Once established use a split ratio of 1:2 approximately every 4 to 5 days; 5% CO2; 37℃. |
| Other Notes【其他说明】 | Additional freight & handling charges may be applicable for Asia-Pacific shipments. Please check with your local Customer Service representative for more information. |
