Lec1 Cells

Name: CLS Cell Lines Service GmbH
Address: Dr.-Eckener-Straße 8, Eppelheim, 69214, DE
Telephone: +496221405780
Price range: €€€

CAD$593.40*

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).

Prices excl. taxes plus shipping costs

cryovial

Product number: 305010

Safety data sheet

Product sheet

Certificate of Analysis (CoA)

Description	The Lec1 cell line is a mutant clone selected for its resistance to wheat germ agglutinin, derived from the parental CHO clone Pro-5. This selection process resulted in a cell line with a specific glycosylation defect, characterized by the presence of N-linked carbohydrates with a blocked Man5-GlcNAc2-Asn intermediate. This blockage is due to the absence of N-acetylglucosaminyltransferase I (GlcNAc-TI), an enzyme critical for the progression of glycan synthesis to more complex forms. As a result, Lec1 cells accumulate glycoproteins with truncated, high-mannose type oligosaccharides. Lec1 cells are invaluable for the study of glycoprotein biosynthesis, particularly in understanding how altered N-linked glycosylation affects cell function. Researchers utilize Lec1 cells to investigate the impact of glycosylation on protein folding, stability, receptor function, and intracellular trafficking. Additionally, these cells provide a unique platform for studying the compartmentalization of viral infection-induced or foreign DNA transfection-induced endogenous glycoproteins. The simplified glycan structures in Lec1 cells also make them ideal for producing glycoproteins that are easier to analyze in various experimental contexts. They are primarily used in vitro for mechanistic studies and biotechnological applications involving glycoprotein production and analysis.
Organism	Chinese hamster
Tissue	Ovary
Synonyms	CHO-Lec1, CHO Lec1, Pro-Lec1.3C, Pro-5 Lec1.3c, Pro-5WgaRI3C

Age	Adult
Morphology	Epithelial
Growth properties	Adherent

Citation	Lec1 (Cytion catalog number 305010)
Biosafety level	1
NCBI_TaxID	10029
CellosaurusAccession	CVCL_3440

Culture Medium	Alpha MEM, w: 2.0 mM stable Glutamine, w/o: Ribonucleosides, w/o: Deoxyribonucleosides, w: 1.0 mM Sodium pyruvate, w: 2.2g/L NaHCO3
Supplements	Supplement the medium with 10% FBS
Dissociation Reagent	Accutase
Subculturing	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.
Fluid renewal	2 to 3 times per week
Freeze medium	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.
Thawing and Culturing Cells	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.
Incubation Atmosphere	37°C, 5% CO₂, humidified atmosphere.
Shipping Conditions	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.
Storage Conditions	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.

Sterility	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.

Lot Number	Certificate Type	Date	Catalog Number
305010-260326	Certificate of Analysis	23. May. 2026	305010

Lec1 Cells

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Certificate of Analysis (CoA)