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CHO Protein-Free Cell Line from Chinese hamster ovary cells

102307, hamster ovary, Suspension

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About This Item

UNSPSC Code:
41106514

product name

CHO Protein-Free Cell Line from Chinese hamster ovary cells, 00102307

biological source

hamster ovary

description

Chinese hamster ovary

growth mode

Suspension

karyotype

Not specified

morphology

Suspension

products

Not specified

receptors

Not specified

technique(s)

cell culture | mammalian: suitable

shipped in

dry ice

storage temp.

−196°C

Cell Line Origin

Chinese hamster ovary

Cell Line Description

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

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

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°C 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°C.

Other Notes

Additional freight & handling charges may be applicable for Asia-Pacific shipments. Please check with your local Customer Service representative for more information.

Certificates of Analysis (COA)

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