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CHOZN® ZFN-Modified CHO Cell Line

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NACRES:
NA.75
UNSPSC Code:
12352200
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description

CHOZN® GS-/- ZFN-modified CHO cell line, glutamine synthetase knockout cell line

solubility

DMSO: 5 mg/mL, clear

shipped in

liquid nitrogen

storage temp.

−196°C

General description

CHOZN cell lines were created utilizing Sigma′s proprietary CompoZr Zinc Finger Nuclease (ZFN) technology to create genetic modifications in parental CHO-K1 cells. Cells are banked in chemically defined, animal component free EX-CELL CD CHO Fusion media
ZFNs are a class of engineered DNA-binding proteins and causes a double-strand break. This double-strand break is necessary for site-specific mutagenesis mediated DNA repair. It facilitates targeted genome editing by binding to a user-specified locus. Glutamine synthetase (GS) is one of the most commonly used selectable markers in the biopharmaceutical industry. Glutamine is an essential amino acid for cellular growth. The GS enzyme is responsible for the conversion of glutamate into glutamine. Without this enzymatic activity, cells can no longer synthesize glutamine endogenously and if glutamine is not supplemented in the culture media, the cells will die.

Biochem/physiol Actions

CHOZN cell lines are all subclones of the parental CHO-K1 cell line originated by Puck in 1957.

Packaging

This product is shipped in liquid nitrogen dry vapor shippers.
Liquid nitrogen dry vapor shipper fee (up to a maximum of $125) and freight not included in price of product.
Liquid nitrogen dry vapor shipper is not disposable and should be returned after receipt. A $450 liquid nitrogen dry vapor shipper fee will be charged if not returned within 1 week of delivery.
Learn more about liquid nitrogen dry vapor shipper

Physical form

CHOZN cell lines are provided to customers in vials containing >7.5e6 cells/mL

Legal Information

All CHOZN cell lines are sold under license from Sigma Aldrich. A copy of the research license is provided with purchase of the CHOZN cell lines.
CHOZN is a registered trademark of Merck KGaA, Darmstadt, Germany

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Clase de almacenamiento

10 - Combustible liquids

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificados de análisis (COA)

Lot/Batch Number
2113545207
2113545207
2113-53667
051M0924

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Artículos

Optimizing CHO Cells for Higher Productivity

Cellvento 4CHO-X Expansion Medium enhances cell biomass for bioreactor inoculation in cell expansion stages.

Impact of DMSO And Freezing Technique in Developing a High Cell Density Cryopreservation Process for Upstream Bioprocessing

Understand how considerations such as DMSO concentrations and freezing techniques are key in the successful implementation of high cell density cryopreservation (HCDC).

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.

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CompoZr ZFN and CHOZN Cell Lines

CHO cell genome editing

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DeBerardinis R J and Cheng T
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The metabolic profile of tumors depends on both the responsible genetic lesion and tissue type.
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Cytotoxic effects during knock out of multiple porcine endogenous retrovirus (PERV) sequences in the pig genome by zinc finger nucleases (ZFN).
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