IKZF5 Knockout HEK293T Polyclonal Cells are a genetically modified cell population generated by CRISPR/Cas9-mediated disruption of the IKZF5 gene in the HEK293T human embryonic kidney cell line. This polyclonal knockout pool provides a versatile tool for functional loss-of-function studies, bypassing the limitations of single-cell clones and reducing clonal artifacts. By maintaining genetic heterogeneity, these cells enable robust analysis of IKZF5-dependent mechanisms in a well-characterized, non-hematopoietic cellular environment.
The HEK293T host cell line is a derivative of HEK293, originally established by transformation of human embryonic kidney cells with sheared adenovirus 5 DNA. HEK293T stably expresses the SV40 large T antigen, which promotes episomal replication of plasmids containing the SV40 origin, leading to high transient transgene expression levels. This feature, coupled with its high transfection efficiency, makes HEK293T a preferred system for recombinant protein production, lentiviral packaging, and biochemical assays, ensuring reproducibility and scalability in research applications.
IKZF5 encodes a member of the Ikaros family of zinc finger transcription factors that binds specific DNA sequences and recruits chromatin remodeling complexes, including HDAC1, HDAC2, Sin3A, CtBP, and the Mi-2/NuRD complex, to modulate gene expression. Its activity is controlled by upstream regulators such as PU.1, EBF1, Notch signaling, and RUNX1, and it transcriptionally regulates key downstream targets like CDKN1A, BCL2, CD19, BLNK, RAG1, and SYK. IKZF5 also dimerizes with other IKAROS family proteins (IKZF1?C4), integrating into transcriptional networks that direct hematopoietic stem cell differentiation, lymphoid lineage commitment, and neurogenesis. Aberrant IKZF5 function is associated with acute lymphoblastic leukemia, lymphoid malignancies, and autoimmune disorders.
Although IKZF5 is predominantly studied in hematopoietic contexts, its expression extends to other tissues, and the HEK293T knockout model provides a simplified, highly transfectable background for mechanistic studies. This system permits detailed investigation of IKZF5??s biochemical properties, protein?Cprotein interactions, and transcriptional activities without lineage-specific confounders. It is especially suited for reconstitution experiments with wild-type or mutant constructs to define domain functions. The polyclonal nature enables population-level observations, improving statistical robustness in high-throughput drug or stimulus screens.
These polyclonal knockout cells are suitable for a wide array of experimental techniques. ChIP-qPCR and RNA-seq can be employed to map IKZF5 binding sites and quantify transcriptional changes in downstream targets, while Co-immunoprecipitation and luciferase reporter assays elucidate protein partnerships and regulatory element activity. Additionally, the cells support functional rescue studies and therapeutic target validation in the context of lymphoid cancers and autoimmune diseases. For further information or to inquire about custom projects, please contact Ascent Research.
