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14326C

SAFC

EX-CELL® 302 Serum-Free Medium for CHO Cells

without L-glutamine and phenol red, liquid, sterile-filtered, suitable for cell culture

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About This Item

MDL number:
MFCD01634638
UNSPSC Code:
12352207
NACRES:
NA.75

description

for research or for further manufacturing use

sterility

sterile-filtered

product line

EX-CELL®

form

liquid

technique(s)

cell culture | mammalian: suitable (suspension)

components

HEPES: yes
phenol red: no
L-glutamine: no
NaHCO3: yes
glucose: yes

shipped in

ambient

storage temp.

2-8°C

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General description

EX-CELL® 302 is a serum-free liquid medium, which has been specifically developed for the long-term growth of transformed Chinese Hamster Ovary (CHO) cells in suspension for the expression of antibodies or protein products. EX-CELL® 302 is an appropriate medium for use with the DHFR- or Glutamine Synthetase, or the GS System™, because it does not contain hypoxanthine, thymidine or L-glutamine. If EX-CELL® 302 is to be used with CHO cells transformed using the GS selection the media needs to be supplemented with GS Supplement 50X (Catalog No. 58672C) for the additional amino acids and nucleosides. For use with DHFR- selection system we recommend the addition of 4 mM L-glutamine for optimal growth. Due to current regulatory concerns about the sources of raw materials, EX-CELL® 302 was developed using only recombinant human proteins that have molecular weights less than 10 kD. The total protein concentration found in EX-CELL® 302 is less than 1 mg/L. Pluronic® F68 has been added at a final concentration of 0.1% to EX-CELL® 302 to protect against shear damage in sparged bioreactor systems. Catalog No. 14326C replaces Catalog No. 14313 and includes an alternate source of soy hydrolysate to that found in the original EX-CELL® 302 formulation. With more consistent performance and improved filtration characteristics, the alternate hydrolysate will improve the overall performance and consistency of EX-CELL® 302. Comparability testing utilizing the previous soy hydrolysate and the replacement hydrolysate demonstrated comparable growth promoting characteristics.

Caution

Do not freeze. Protect from light. Several components of the medium are light labile and should not be exposed to light for lengthy periods of time.

Legal Information

EX-CELL is a registered trademark of Merck KGaA, Darmstadt, Germany
GS System is a trademark of Lonza Group Ltd.
Pluronic is a registered trademark of BASF

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Articles

Selection Process Development in a GS Knock-Out CHO Host Cell Line: The Effects of MSX Addition on Clones Generated in an MSX-Free Process

The Glutamine Synthetase (GS) expression system does not typically require multiple rounds of amplification to isolate high-producing clones (Brown, 1992).

Mgat4 May Play a Role in Increased Sialylation by Overexpressing Functional MGAT1 in Mgat1-Disrupted Chinese Hamster Ovary (CHO) Cells

MGAT1 adds N-acetylglucosamine to the Man5GlcNAc2 (Man5) structure. Goh et al. reported increased sialylation after restoring MGAT1 function in MGAT1 deficient CHO cells.

Using Microarray Technology to Select Housekeeping Genes in Chinese Hamster Ovary Cells

In the present study, we have identifi ed species-specifi c housekeeping genes (HKGs) for Chinese Hamster Ovary (CHO) cells using data from microarray gene expression profiling.

Signal Peptide Optimization: Effect On Recombinant Monoclonal IgG Productivity, Product Quality And Antigen-Binding Affinity

A signal peptide is a 5-30 amino acid (aa) peptide present at the N-terminus of secretory proteins.

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