The DUS3L Knockout A-549 Polyclonal Cells represent a CRISPR/Cas9-edited polyclonal knockout cell population designed to disrupt the DUS3L gene in the A-549 human lung adenocarcinoma epithelial cell line. This loss-of-function model provides a powerful tool for investigating the role of tRNA dihydrouridine synthase in translational control and cellular homeostasis. The polyclonal format offers a heterogeneous population with diverse gene-editing events, enabling robust functional studies without clonal selection bias. Researchers can employ this product to explore DUS3L-dependent mechanisms in cancer biology and beyond.
The A-549 cell line, derived from the lung carcinoma tissue of a 58-year-old Caucasian male, is a well-established model for lung adenocarcinoma research. These adherent epithelial cells exhibit characteristic properties of alveolar type II pneumocytes and are widely used to study oncogenic signaling, drug response, and metastasis. The A-549 background is particularly relevant for dissecting the interplay between translation regulation and malignant phenotypes, making it an ideal host for DUS3L knockout studies.
DUS3L encodes a tRNA dihydrouridine synthase that catalyzes the addition of dihydrouridine modifications to specific tRNA substrates, directly impacting codon recognition and translation fidelity. This enzyme functions within the broader mTOR signaling network, where its activity is regulated by upstream factors such as MYC and mTORC1. DUS3L interacts with tRNA molecules and components of the dihydrouridine synthase complex, and its catalytic output influences downstream processes including ribosome function, translation efficiency, and global protein synthesis. Disruption of DUS3L may therefore perturb proteome dynamics and cellular adaptation to stress.
In the A-549 lung cancer context, DUS3L knockout provides insight into how altered tRNA modification affects oncogenic translation programs. The model enables investigation of whether DUS3L-dependent translation control contributes to lung adenocarcinoma proliferation, migration, and survival under nutrient or hypoxic stress. Additionally, because DUS3L mutations are associated with neurodevelopmental disorders and intellectual disability, this cell system offers a reductionist platform to study fundamental mechanisms that may bridge translation dysregulation across cancer and neurological disease.
This polyclonal knockout cell population supports a wide array of functional and biochemical assays. Researchers can perform tRNA modification analysis via liquid chromatography-mass spectrometry (LC-MS) to quantify dihydrouridine levels, assess translational output using polysome profiling and puromycin incorporation assays, and evaluate cellular phenotypes such as proliferation and migration. The model is suited for screening small molecules targeting the mTOR pathway or translation machinery. For technical specifications and ordering details, please contact Ascent Research.
