Skip to Content
Merck

CHOGS

SAFC

CHOZN® ZFN-Modified CHO Cell Line

Sign Into View Organizational & Contract Pricing

Select a Size

About This Item

UNSPSC Code:
12352200
NACRES:
NA.75

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

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

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
2113-53667
051M0924

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

The metabolic profile of tumors depends on both the responsible genetic lesion and tissue type.
Yuneva M O, et al.
Cell Metabolism, 15(2), 157-170 (2012)
Cytotoxic effects during knock out of multiple porcine endogenous retrovirus (PERV) sequences in the pig genome by zinc finger nucleases (ZFN).
Semaan M, et al.
PLoS ONE, 10(4), e0122059-e0122059 (2015)
Q's next: the diverse functions of glutamine in metabolism, cell biology and cancer.
DeBerardinis R J and Cheng T
Oncogene, 29(3), 313-313 (2010)

Articles

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.

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).

CHO Media and Feeds for Optimized Production of Therapeutic Proteins

Cellvento® and EX-CELL® CHO cell culture media and feeds, optimized for monoclonal antibody & recombinant protein production in fed-batch & perfusion

Related Content

Product Information Sheet - CHOGS

CHOZN ZFN-Modified GS-/- CHO Cell Line

Pembangunan talian sel bagi MABS

Ketahui lebih lanjut tentang pembangunan baris sel dan produk berkaitan yang anda perlukan untuk proses ini.

Cell Line Development for mAbs

Learn more about cell line development and the relevant products you need for this process.

User Guide CHOZN GS Platform
See All

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service