The ARPC2 Knockout HEK293T Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population generated from the HEK293T human embryonic kidney line. This product provides targeted disruption of the ARPC2 gene, eliminating the p34 subunit of the Arp2/3 complex to establish a loss-of-function model. The polyclonal format ensures a diverse pool of edited cells, minimizing clonal artifacts while leveraging the host line??s high transfection efficiency for robust actin cytoskeleton research.
The parental HEK293T cell line is a widely employed human embryonic kidney epithelial line that stably expresses the SV40 large T antigen. This antigen drives episomal replication of plasmids containing the SV40 origin, conferring exceptionally high transfection efficiency and making HEK293T cells a standard choice for recombinant protein expression, viral vector production, and transient transfection assays. The cells exhibit a characteristic epithelial morphology with adherent growth and polarized membrane domains, which forms a physiologically appropriate substrate for investigating actin-driven events such as lamellipodia formation, cell migration, and endocytosis.
The ARPC2 gene encodes the p34 subunit of the Arp2/3 complex, a seven-protein machine that nucleates branched actin filaments essential for cell motility and endocytosis. Activation of the complex is mediated by nucleation-promoting factors including N-WASP and the WAVE regulatory complex, which function downstream of Rac1, Cdc42, and PI3K signaling. ARPC2 serves as a core structural subunit, interacting stably with ARP2, ARP3, and the other ARPC proteins (ARPC1, ARPC3, ARPC4, ARPC5), as well as with the branch-stabilizing factor cortactin. Disruption of ARPC2 dismantles the complex, resulting in defective actin branching, lamellipodial collapse, impaired endocytic vesicle formation, and disrupted focal adhesion dynamics.
In the HEK293T epithelial context, ARPC2 knockout yields a scalable model to dissect Arp2/3-mediated processes. High transfection rates enable rapid rescue experiments with wild-type or mutant ARPC2, and facilitate live-cell actin imaging. The knockout is anticipated to produce slower cell migration, impaired wound closure, diminished transwell invasion, and faulty endocytosis. Such phenotypes are directly relevant to the study of cancer cell dissemination, neurodevelopmental abnormalities, and immune disorders like Wiskott-Aldrich syndrome that involve actin dysregulation.
Researchers employ these knockout cells for quantitative phalloidin staining and flow cytometry to measure F-actin, wound healing and Transwell assays to study migration and invasion, and transferrin uptake to examine endocytosis. Co-immunoprecipitation can confirm disrupted Arp2/3 complex formation, while live-cell imaging enables direct observation of lamellipodial behavior. This model is also valuable for high-throughput screening of cytoskeleton-targeting compounds and for validating gene function via complementation. For additional inquiries, please contact Ascent Research.
