The IFI27L2 Knockout HEK293T Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population, providing a loss-of-function model for the IFI27L2 gene in the widely used HEK293T host cell line. This target-gene disruption allows researchers to interrogate the functional role of IFI27L2, an interferon-inducible protein hypothesized to regulate mitochondrial-mediated apoptosis. The polyclonal format represents a heterogeneous knockout pool suitable for bulk biochemical and cell-based assays without clonal selection artifacts.
The HEK293T cell line is an adherent, epithelial-like derivative of human embryonic kidney 293 cells, stably expressing the SV40 large T antigen. This enables episomal replication of plasmids containing the SV40 origin, leading to high-level expression of recombinant proteins and efficient production of lentiviral or retroviral particles. Its robust growth characteristics and ease of transfection make it a preferred host for gene function studies, signal transduction analysis, and protein interaction investigations. The IFI27L2 knockout in this background offers a streamlined system to dissect gene function in a well-characterized cellular context.
IFI27L2 is induced in response to type I interferons (IFN-??/??) through the JAK-STAT signaling pathway. Upon interferon binding to IFNAR1/IFNAR2 receptors, the kinases JAK1 and TYK2 phosphorylate STAT1 and STAT2, which dimerize and recruit IRF9 to form the ISGF3 transcription complex. This complex translocates to the nucleus and drives transcription of interferon-stimulated genes, including IFI27L2. The encoded protein is thought to localize to the mitochondrial outer membrane, where it may interact with BCL2 family members such as BAX, potentially modulating mitochondrial outer membrane permeabilization (MOMP) and subsequent release of cytochrome c and activation of caspase-9. By linking interferon signaling to the intrinsic apoptosis pathway, IFI27L2 serves as a putative molecular node connecting innate immunity to cell fate decisions.
In the HEK293T context, knockout of IFI27L2 provides a platform to explore its contribution to apoptosis regulation downstream of interferon stimulation. Because HEK293T cells are highly tractable for transient transfections and viral transduction, this model facilitates reconstitution experiments with wild-type or mutant IFI27L2 and enables detailed mechanistic dissection of its role in mitochondrial dysfunction. The polyclonal knockout population is particularly suited for studying population-level responses to interferon treatment, viral mimics, or stressors that activate the intrinsic apoptotic pathway. Research areas benefiting from this model include viral pathogenesis, autoimmune diseases where interferon signaling is dysregulated, and cancer biology in which apoptosis evasion is a hallmark.
Typical applications of the IFI27L2 Knockout HEK293T Polyclonal Cells encompass a range of molecular and cellular assays. Western blotting and RT-qPCR can confirm knockout and assess downstream effector expression, while flow cytometry using annexin V/PI staining quantifies apoptosis rates after interferon stimulation or genotoxic stress. The JC-1 assay enables measurement of mitochondrial membrane potential changes, directly assessing IFI27L2 impact on mitochondrial integrity. Co-immunoprecipitation experiments can probe protein?Cprotein interactions with BAX, BCL2, or other mitochondrial factors. Furthermore, interferon ELISA or reporter assays can be used to examine feedback regulation of the JAK-STAT pathway. For additional information or to order, please contact Ascent Research.
