ACAP2 Knockout HEK293T Polyclonal Cells represent a CRISPR/Cas9-edited polyclonal knockout cell population engineered to disrupt the ACAP2 gene in the HEK293T background. This loss-of-function model provides a genetically heterogeneous pool of cells, each carrying targeted gene disruption, enabling robust analysis of ACAP2-dependent cellular mechanisms without the constraints of clonal variability. The polyclonal format ensures a practical, high-yield system for broad-scale biochemical and functional assays, making it well-suited for studying ARF6-mediated membrane trafficking and actin cytoskeleton dynamics.
The host cell line, HEK293T, is a derivative of human embryonic kidney HEK293 cells that stably expresses the SV40 large T antigen. This modification permits episomal replication of plasmids containing the SV40 origin of replication, leading to high-level transient protein expression and efficient lentivirus production. HEK293T cells are extensively employed in gene editing research, protein interaction studies, and viral packaging, offering a versatile platform for investigating signaling pathways with high transfection efficiency and reproducibility.
ACAP2 encodes a multidomain protein functioning as a GTPase-activating protein specifically targeting ARF6. It catalyzes the hydrolysis of ARF6-GTP to ARF6-GDP, thereby terminating ARF6 signaling. This activity is integrated into signaling networks through upstream regulators such as receptor tyrosine kinases (e.g., EGFR) and integrin-mediated PI3K activation. ACAP2 interacts directly with ARF6, PIP5K, GULP, and clathrin adaptors, and its downstream effects converge on actin polymerization machinery, focal adhesion turnover, and membrane ruffling. Through these interactions, ACAP2 controls endocytic recycling and actin cytoskeleton remodeling, processes critical for cell migration and invasion, with ARF6 and Rac1 representing key pathway components.
In the HEK293T background, ACAP2 knockout provides a reductionist system to dissect ARF6-dependent trafficking and cytoskeletal events without confounding endogenous signals. The high transfectability of HEK293T cells allows reintroduction of mutant ACAP2 constructs or ARF6 variants, facilitating structure-function analyses and rescue experiments. This model is particularly valuable for examining the molecular underpinnings of cancer metastasis, where ARF6-driven actin dynamics and focal adhesion disassembly promote invasive behavior. The polyclonal population also supports large-scale biochemical investigations, such as GTPase activation assays, co-immunoprecipitation, and live-cell imaging of ARF6 dynamics.
This knockout cell product is applicable to a range of targeted research applications, including Western blotting for ACAP2 and ARF6-GTP levels, immunofluorescence staining of actin structures and focal adhesions, Transwell migration and invasion assays, and flow cytometry for surface protein recycling. It enables rigorous dissection of endocytic recycling pathways and ARF6 signaling networks, offering insights into mechanisms of cell motility and membrane remodeling. For technical inquiries or to explore custom applications, please contact Ascent Research.
