ZNF703 Knockout cell line (HK-2)

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.

ZNF703 (zinc finger protein 703) encodes a zinc finger-containing regulatory protein involved in transcriptional and signaling processes. ZNF703 participates in regulation of mammary gland epithelial cell proliferation and transforming growth factor-β receptor signaling and may contribute to cellular responses to estradiol. Its localization to the cytoplasm and nuclear matrix suggests functions extending beyond direct DNA binding. Through these activities, ZNF703 may influence epithelial cell growth and signaling, although its precise molecular mechanisms remain incompletely characterized.

HK-2 (Human Kidney-2) is a well-characterized immortalized human kidney proximal tubular epithelial cell line derived from normal adult renal tissue. Transformed via the transduction of human papillomavirus type 16 (HPV-16) E6/E7 genes, HK-2 successfully achieves continuous in vitro proliferation while stably retaining the functional and phenotypic characteristics of primary proximal tubular epithelium. HK-2 cells maintain distinct brush border enzyme activities and exhibit physiologic responsiveness to cytokines and nephrotoxic compounds. Consequently, HK-2 serves as a globally accepted, standard human cell platform extensively utilized in in vitro nephrotoxicity screening, renal fibrosis modeling, tubular transport mechanism profiling, and preclinical drug safety evaluations.

Before delivery, each clone is authenticated by STR, tested for sterility and mycoplasma, and genotype‑verified by two‑round PCR‑sequencing. Comprehensive QC data accompany every shipment to support reproducible research.