The KNDC1 knockout HEK293T polyclonal cells are a CRISPR/Cas9-edited population of human embryonic kidney epithelial cells with targeted disruption of the KNDC1 gene. This polyclonal knockout model eliminates the scaffold pseudokinase KNDC1, enabling loss-of-function studies while capturing the natural heterogeneity of gene editing outcomes. Researchers benefit from a robust cell pool that avoids clonal selection artifacts, allowing investigation of KNDC1-dependent signaling in a physiologically relevant context.
HEK293T cells are derived from human embryonic kidney tissue, transformed with adenovirus type 5 DNA, and stably express SV40 large T antigen. This engineering endows them with exceptional transfectability and high-level protein expression, making them a preferred platform for transient transfection, lentivirus packaging, and recombinant protein production. Their robust growth and ease of manipulation enable high-throughput screening and detailed biochemical studies, providing a versatile background for interrogating KNDC1 function in a well-characterized intracellular environment.
KNDC1 is a pseudokinase that scaffolds the Ras-MAPK pathway. Upon stimulation by growth factors such as BDNF and NGF, activated Ras recruits KNDC1, which assembles a complex with RAF kinases and 14-3-3 proteins to promote MEK and ERK1/2 phosphorylation. Sustained ERK signaling activates downstream transcription factors CREB and c-Fos, and also engages JNK. This scaffold-driven signal amplification facilitates neuronal differentiation and modulates gene expression programs. KNDC1 thus ensures efficient coupling of growth factor receptors to nuclear effectors.
Loss of KNDC1 in HEK293T cells disrupts Ras-MAPK scaffold assembly, offering a tractable model to examine pseudokinase-dependent signaling. Despite their kidney origin, HEK293T cells retain functional Ras-MAPK machinery, enabling assessment of growth factor responsiveness, kinase activation kinetics, and transcription factor dynamics. This model allows comparative signaling studies and co-immunoprecipitation-based mapping of KNDC1 interaction networks. Co-expression of neuronal factors can further recapitulate neurogenic signaling, supporting cross-validation with neuronal models.
These KNDC1 knockout polyclonal cells are suited for western blotting of phosphorylated ERK and JNK, immunofluorescence of downstream markers, co-immunoprecipitation of KNDC1 with Ras and 14-3-3 proteins, Ras activation assays, and RT-qPCR for target genes like c-Fos and CREB. They support research into pseudokinase biology, Ras-MAPK regulation, cancer signaling, and neurodevelopmental disorders. For further information, contact Ascent Research.
