
Ubigene gene knockout cell lines mediated by optimized CRISPR-Cas9 technology provide reliable in vitro models for investigating gene function, signaling pathways, disease mechanisms, and therapeutic targets.
RRM2B (ribonucleotide reductase regulatory TP53 inducible subunit M2B) encodes the small subunit of a p53-inducible ribonucleotide reductase complex. This enzyme converts ribonucleoside diphosphates into deoxyribonucleoside diphosphates, providing substrates required for DNA synthesis. RRM2B therefore contributes to deoxyribonucleotide production and supports cellular DNA replication and repair, particularly as part of the p53-responsive DNA damage and stress response.
BEAS-2B is an immortalized human bronchial epithelial cell line established from normal bronchial epithelium obtained from non-cancerous individuals. The cells were immortalized using a replication-defective SV40/adenovirus 12 hybrid (Ad12SV40) and cloned. BEAS-2B cells express epithelial markers including keratins and SV40 T antigen and can undergo squamous differentiation in response to serum exposure. The cell line is widely used as a model for studying normal airway epithelial biology, respiratory infection mechanisms, epithelial differentiation, environmental toxicity, and carcinogenesis.
Comprehensive quality control includes STR authentication, sterility testing (bacteria and fungi), and mycoplasma screening to ensure purity and performance. Genotype is confirmed by two rounds of PCR and Sanger sequencing, and complete validation reports are provided for make-to-order products.

Cas9 cell lines in our cell bank can stably express Cas9 protein. Each Cas9 Stable Cell Line is easy to use and enables gene knockout simply by transfecting gRNA, while transfection of gRNA and donor DNA results in gene knock-in or point mutations
These Cas9 stable cell lines have been used to construct the KO cell lines for various genes, gene KO efficiency 5-10 times improved.
Selected cells, low passages, good cell condition, high activity, applicable for all kinds of gene-editing experiments.
For research use only. Not intended for human or animal clinical trials, therapeutic or diagnostic use





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