The G3BP2 Knockout Raji Polyclonal Cells constitute a CRISPR/Cas9-edited polyclonal knockout population designed for loss-of-function analyses of the G3BP2 gene in a human B lymphocyte context. This heterogenous pool contains cells with diverse CRISPR/Cas9-mediated disruptions in the G3BP2 locus, facilitating robust pathway interrogation while preserving genetic diversity. Functional G3BP2 knockout across the population supports physiologically relevant phenotypic studies without clonal selection bias.
The Raji cell line, derived from an EBV-positive Burkitt??s lymphoma, is a suspension-adapted B lymphoblastoid model widely used in immunology and cancer research. These cells retain post-germinal center features and exhibit constitutive survival signaling driven by latent EBV gene products. Raji??s rapid growth and genetic tractability make it ideal for generating knockout models to investigate B-cell signaling, viral oncogenesis, and stress responses.
G3BP2 acts as a scaffold bridging Ras signaling and stress granule assembly. It binds the RasGAP protein RASA1, coupling extracellular signals to MAPK/ERK cascades, while also nucleating stress granules upon oxidative stress, heat shock, or interferon exposure. Via interactions with TIA-1, PABPC1, and CAPRIN1, G3BP2 sequesters key mRNAs such as MYC and CCND1, modulating their translation. Its activity is regulated by PI3K/Akt and stress kinases including PKR and eIF2??, positioning G3BP2 as a hub integrating environmental cues with post-transcriptional control.
In the Raji context, G3BP2 knockout is especially pertinent due to the co-option of stress pathways by EBV. EBV-encoded proteins chronically activate Ras and PI3K/Akt, potentially imposing a dependency on G3BP2 for oncogenic mRNA translation and proteotoxic stress management. Disrupting G3BP2 may impair stress granule formation, viral mRNA handling, and innate immune evasion, thereby altering drug sensitivity and apoptotic thresholds. This polyclonal model thus offers a powerful tool for dissecting G3BP2??s role in EBV-driven lymphomagenesis and B-cell stress resilience.
Applications span cancer signaling, stress biology, and drug discovery. Researchers can quantify target gene expression changes by RT-qPCR and western blotting, visualize stress granule dynamics via immunofluorescence, and assess cell cycle or apoptosis by flow cytometry. The polyclonal format is suitable for high-throughput screening of stress modulators and drug sensitivity assays. Co-immunoprecipitation and RNA-sequencing can delineate G3BP2??s interactome and transcriptomic impact. For additional information or bespoke queries, reach out to Ascent Research.
