The DYRK3 Knockout HEK293T Polyclonal Cells represent a CRISPR/Cas9-edited polyclonal knockout cell population designed for advanced biomedical research on mTOR signaling, stress granule dynamics, and autophagy. This product provides a heterogeneous pool of HEK293T cells carrying targeted disruptions in the DYRK3 loci, enabling loss-of-function studies without clonal selection. The polyclonal format captures diverse editing outcomes, facilitating robust functional interrogation of DYRK3-dependent pathways while mitigating clonal artifacts. Researchers can utilize these cells to dissect the nuanced roles of DYRK3 in cellular homeostasis and disease models, leveraging a physiologically relevant human cell context.
The host cell line, HEK293T, is a widely used human embryonic kidney epithelial line expressing the SV40 large T antigen. This immortalized line offers high transfection efficiency and robust protein expression, making it a staple for recombinant protein production, viral packaging, and signal transduction studies. HEK293T cells maintain key features of kidney epithelial biology while providing a versatile platform for genetic manipulation. Their rapid proliferation and compatibility with various biochemical assays render them ideal for generating knockout models where high editing efficiency and experimental scalability are essential.
DYRK3 is a serine/threonine kinase with critical functions in cellular nutrient sensing and stress responses. It directly phosphorylates PRAS40, a component of mTORC1, to relieve inhibition and promote cell growth under favorable conditions. Conversely, during cellular stress, DYRK3 stabilizes DEPTOR, an endogenous mTORC1 inhibitor, leading to pathway suppression and facilitation of stress granule assembly. DYRK3 activity is regulated upstream by AMPK, AKT, and stress cues such as oxidative stress and heat shock. Downstream, DYRK3 influences key effectors including ULK1, 4E-BP1, and S6K, positioning it as a central node in balancing anabolic and catabolic programs and integrating stress signals with mTORC1-driven growth.
In the HEK293T background, DYRK3 knockout disrupts the intricate regulation of mTORC1, providing a powerful model to study kinase-dependent signaling events. The host cells?? active mTOR pathway and well-characterized stress response machinery make them particularly suitable for probing DYRK3??s role in autophagy induction and stress granule formation. Loss of DYRK3 in this context is expected to alter phosphorylation dynamics of PRAS40 and DEPTOR, shift mTORC1 substrate engagement, and impact downstream metabolic and proliferative phenotypes. This model thus enables the dissection of DYRK3??s dual function as both a positive and negative regulator of mTORC1, offering insights into its context-dependent roles in cell growth versus stress adaptation.
This polyclonal knockout population is applicable to a broad range of experimental workflows, including phospho-S6K/S6 western blotting, immunofluorescence for stress granule markers, co-immunoprecipitation of DYRK3-PRAS40 complexes, mTORC1 kinase assays, and autophagy flux measurements using LC3. Researchers can also employ viability, proliferation, and RT-qPCR assays to assess DYRK3-dependent transcriptional and functional outcomes. These cells are well-suited for drug target validation, cancer signaling studies, and investigations of metabolic and neurodegenerative disorders. For detailed technical specifications and ordering information, please contact Ascent Research.
