AGFG1 Knockout HeLa Polyclonal Cells provide a CRISPR/Cas9-edited polyclonal knockout cell population with targeted disruption of the human AGFG1 gene in the HeLa host background. This loss-of-function model is generated through CRISPR/Cas9-mediated gene disruption, yielding a heterogeneous pool of knockout cells that avoids the clonal adaptation artifacts of monoclonal lines. It serves as a robust tool for dissecting AGFG1 functions in clathrin-mediated endocytosis, endosomal trafficking, and HIV-1 Rev-dependent RNA nuclear export.
HeLa cells are an immortalized human cervical adenocarcinoma line exhibiting epithelial morphology and HPV18 positivity. They are a cornerstone of biomedical research, extensively utilized in cancer biology, virology, and cell signaling investigations. The cell line??s well-documented endocytic activity, rapid proliferation, and responsiveness to growth factors such as EGF make it an optimal model for examining receptor trafficking and viral host factor interactions.
AGFG1 encodes a clathrin-associated sorting protein with Arf-GAP activity that regulates Arf GTPases, including ARF1 and ARF6. The protein directly interacts with clathrin heavy chain, the AP-2 adaptor complex, and the endocytic scaffold Eps15 to facilitate EGFR internalization upon receptor activation. In addition, AGFG1 functions as a host cofactor for the HIV-1 Rev protein, binding Rev and mediating CRM1-dependent nuclear export of unspliced viral RNAs. Thus, AGFG1 integrates endocytic cargo sorting with post-transcriptional control of retroviral gene expression.
In the HeLa context, AGFG1 knockout disrupts EGFR trafficking and Rev-mediated RNA export??two pathways for which HeLa cells serve as classic experimental models. HeLa??s robust clathrin machinery and established Rev-dependent reporter systems permit direct measurement of impaired EGFR internalization kinetics and reduced viral RNA export efficiency. The polyclonal knockout format captures population-level phenotypes, ensuring that functional deficits reflect the average consequence of AGFG1 disruption across a diverse allelic spectrum.
Researchers can employ these cells in a wide range of assays, including Western blotting for AGFG1 loss verification, immunofluorescence analysis of EGFR internalization, flow cytometry-based transferrin uptake assays, and co-immunoprecipitation of Rev?Cclathrin complexes. RT-qPCR enables quantification of HIV-1 Rev-dependent RNA export, while RNA-seq facilitates transcriptome-wide profiling of knockout-associated changes. These applications support investigations into endocytosis, cancer signaling, and host?Cpathogen interactions. For product inquiries or technical support, contact Ascent Research.
