CHO-K1 Cells

USD 395.00*

Products are shipped frozen on dry ice in cryotubes. Each cryotube typically contains 3 × 10⁶ cells for adherent lines or 5 × 10⁶ cells for suspension lines (refer to the batch CoA for details).

Los precios no incluyen impuestos ni gastos de envío

cryovial

Número de producto: 603480

Ficha de datos de seguridad

Ficha del producto

Certificado de análisis (CoA)

Descripción	CHO-K1 cells are a subline derived from the CHO cell line, which was originally established in the early 1950s from a Chinese hamster ovary. CHO-K1 cells are widely utilized in the production of therapeutic monoclonal antibodies and other biopharmaceuticals. Their extensive use in biopharmaceutical protein production and vaccines is attributed to their eukaryotic nature, which allows for proper folding, assembly, and post-translational modifications such as glycosylation, which influences the stability, efficacy, and safety of the produced proteins. In the realm of recombinant protein production, the CHO-K1 cell line is used to express a wide array of proteins, including monoclonal antibodies, growth factors, cytokines, and enzymes. These proteins have applications in therapeutic treatments, diagnostic assays, and vaccine formulations. CHO-K1 cells exhibit a robust growth rate and are adaptable to various culture conditions, including suspension and adherent cultures, making them highly valuable for large-scale bioproduction processes. They possess a high level of genetic stability and are used for stable cell line development as they are capable of amplifying and expressing exogenous genes efficiently, which is critical for producing high yields of recombinant proteins. CHO-K1 chinese hamster cells can be easily transfected with a variety of vectors for gene expression, facillitating gene editing or knockdown. This flexibility allows researchers to introduce specific genes, silence genes, or even perform targeted gene editing using technologies like CRISPR-Cas9 in CHO-K1 host cells. In conclusion, the chinese hamster CHO-K1 cells and CHO cells are pivotal in biotechnological research and biopharmaceutical production, offering a versatile platform for the study of gene function and the large-scale production of recombinant proteins.
Organismo	Chinese hamster
Tejido	Ovary
Aplicaciones	This cell line is an optimal choice for toxicology, industrial biotechnology and bioproduction.
Sinónimos	CHO K1, CHOK1, CHO cell clone K1, GM15452

Edad	Adult
Género	Female
Morfología	Epithelial-like
Propiedades de crecimiento	Monolayer, adherent

Referencia	CHO-K1 (Cytion catalog number 603480)
Nivel de bioseguridad	1
NCBI_TaxID	10029
N.º de acceso de Cellosaurus	CVCL_0214

Susceptibilidad a los virus	Vesicular stomatitis (Indiana), Getah virus Virus Resist: poliovirus 2, modoc virus, Button Willow virus
Transcriptasa inversa	Negative
Cariotipo	Chromosome Frequency Distribution 50 Cells: 2n = 22. Stemline number is hypodiploid

Medio de cultivo	Ham's F12, w: 1.0 mM stable Glutamine, w: 1.0 mM Sodium pyruvate, w: 1.1 g/L NaHCO3 (Cytion article number 820600a)
Suplementos	Supplement the medium with 10% FBS
Reactivo de disociación	Accutase
Tiempo de duplicación	22 hours
Subcultivo	Remove the old medium from the adherent cells and wash them with PBS that lacks calcium and magnesium. For T25 flasks, use 3-5 ml of PBS, and for T75 flasks, use 5-10 ml. Then, cover the cells completely with Accutase, using 1-2 ml for T25 flasks and 2.5 ml for T75 flasks. Let the cells incubate at room temperature for 8-10 minutes to detach them. After incubation, gently mix the cells with 10 ml of medium to resuspend them, then centrifuge at 300xg for 3 minutes. Discard the supernatant, resuspend the cells in fresh medium, and transfer them into new flasks that already contain fresh medium.
Densidad de siembra	1 x 10⁴ cells/cm² will yield in a confluent layer in about 6 days
Renovación de fluidos	2 to 3 times per week
Recuperación tras el deshielo	After thawing, plate the cells at 5 x 10⁴ cells/cm² and allow the cells to recover from the freezing process and to adhere for at least 24 hours.
Medio de congelación	As a cryopreservation medium, we use complete growth medium (including FBS) + 10% DMSO for adequate post-thaw viability, or CM-1 (Cytion catalog number 800100), which includes optimized osmoprotectants and metabolic stabilizers to enhance recovery and reduce cryo-induced stress.
Descongelación y cultivo de células	Confirm that the vial remains deeply frozen upon delivery, as cells are shipped on dry ice to maintain optimal temperatures during transit. Upon receipt, either store the cryovial immediately at temperatures below -150°C to ensure the preservation of cellular integrity, or proceed to step 3 if immediate culturing is required. For immediate culturing, swiftly thaw the vial by immersing it in a 37°C water bath with clean water and an antimicrobial agent, agitating gently for 40-60 seconds until a small ice clump remains. Perform all subsequent steps under sterile conditions in a flow hood, disinfecting the cryovial with 70% ethanol before opening. Carefully open the disinfected vial and transfer the cell suspension into a 15 ml centrifuge tube containing 8 ml of room-temperature culture medium, mixing gently. Centrifuge the mixture at 300 x g for 3 minutes to separate the cells and carefully discard the supernatant containing residual freezing medium. Gently resuspend the cell pellet in 10 ml of fresh culture medium. For adherent cells, divide the suspension between two T25 culture flasks; for suspension cultures, transfer all the medium into one T25 flask to promote effective cell interaction and growth. Adhere to established subculture protocols for continued growth and maintenance of the cell line, ensuring reliable experimental outcomes.
Atmósfera de incubación	37°C, 5% CO₂, humidified atmosphere.
Condiciones de envío	Cryopreserved cell lines are shipped on dry ice in validated, insulated packaging with sufficient refrigerant to maintain approximately −78 °C throughout transit. On receipt, inspect the container immediately and transfer vials without delay to appropriate storage.
Condiciones de almacenamiento	For long-term preservation, place vials in vapor-phase liquid nitrogen at about −150 to −196 °C. Storage at −80 °C is acceptable only as a short interim step before transfer to liquid nitrogen.

Esterilidad	Mycoplasma contamination is excluded using both PCR-based assays and luminescence-based mycoplasma detection methods. To ensure there is no bacterial, fungal, or yeast contamination, cell cultures are subjected to daily visual inspections.

Número de lote	Tipo de certificado	Fecha	Número de catálogo
603480-291124	Certificado de análisis	18. Aug. 2025	603480

CHO-K1 Cells

Basic details about the CHO-K1 cell line

Properties of CHO-K1 cells

Documenation

Genetic characteristics of the chinese hamster ovary cell line CHO

Culturing guidelines

Quality control

Certificado de análisis (CoA)

Organismo	Chinese hamster
Tejido	Ovary
Enfermedad	Chinese hamster ovary, non-neoplastic; genetically engineered for CXCR4 surface expression (medium-high expression level)

Organismo	Chinese hamster
Tejido	Ovary
Enfermedad	Chinese hamster ovary, non-neoplastic; genetically engineered for CXCR7 (ACKR3) surface expression (medium-high expression level)

Organismo	Chinese hamster
Tejido	Ovary
Enfermedad	Chinese hamster ovary, non-neoplastic; genetically engineered for CTLA-4 surface expression

Organismo	Chinese hamster
Tejido	Ovary
Enfermedad	Chinese hamster ovary, non-neoplastic; genetically engineered for FOLR1 (Folate Receptor alpha) surface expression