The EIF5A2 Knockout A-549 Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population targeting the EIF5A2 gene in the A-549 human lung epithelial carcinoma line. This polyclonal format provides a heterogeneous pool of edited cells, avoiding single-cell cloning and maintaining population diversity, suitable for functional studies of gene disruption effects.
A-549 cells originate from a human lung carcinoma and serve as a well-characterized model for lung adenocarcinoma. They retain epithelial morphology and are employed extensively in oncology research for drug sensitivity assays, signaling analyses, and metastasis studies, providing a relevant background for gene knockout experiments.
EIF5A2 is a translation elongation factor that facilitates synthesis of polyproline-containing proteins, a subset critical for cytoskeletal dynamics and cell cycle progression. Its expression is induced by growth-promoting signals: MYC transcriptionally upregulates EIF5A2, while mTORC1 enhances its translation, placing EIF5A2 downstream of major oncogenic pathways. The unique post-translational hypusination modification??catalyzed consecutively by DHPS and DOHH??is essential for EIF5A2 function, linking it to polyamine metabolism. Active, hypusinated EIF5A2 associates with the ribosome and cooperates with eEF2 to resolve ribosomal stalling at polyproline sequences. Its translational targets include ACTB (??-actin), Cyclin D1, and the EMT marker Vimentin, collectively promoting cell proliferation, migration, and invasion. Thus, EIF5A2 integrates inputs from mTOR and MYC to reprogram the proteome toward a malignant phenotype.
In A-549 cells, EIF5A2 knockout enables direct examination of its role in lung adenocarcinoma progression. The polyclonal population reflects diverse editing outcomes, mimicking heterogeneous tumor cell responses and avoiding clonal bias. This is valuable for studying EIF5A2-dependent phenotypes in a cancer-relevant context.
Representative research applications encompass cancer biology, metastasis investigation, translational control mechanisms, drug target validation, and polyamine metabolism studies. This knockout model is compatible with a wide array of techniques, including western blotting and RT-qPCR for expression analysis, proliferation and migration/invasion assays for functional phenotyping, and ribosome profiling to assess translation dynamics. Additionally, immunoprecipitation can probe EIF5A2 interactors, while immunofluorescence and flow cytometry enable spatial and quantitative analyses. For further technical information and to request a quote, please reach out to Ascent Research.
