The CACNG6 Knockout HEK293T Polyclonal Cells are a ready-to-use, CRISPR/Cas9-edited polyclonal knockout cell population designed for the targeted disruption of the CACNG6 gene in the widely used HEK293T human embryonic kidney cell line. This product provides a genetically heterogeneous pool of edited cells, enabling researchers to investigate the functional consequences of CACNG6 loss without the clonal selection bottlenecks often associated with single-cell-derived knockout lines. The polyclonal format preserves a broad representation of edited alleles and is well-suited for pooled screening, dose?Cresponse studies, and bulk biochemical analyses that require robust and reproducible knockout phenotypes.
HEK293T cells are a well-characterized, highly transfectable epithelial line derived from human embryonic kidney 293 cells that stably express the SV40 large T antigen, facilitating episomal replication of plasmids containing the SV40 origin of replication. Their rapid growth, ease of culture, and high transfection efficiency have made them a standard heterologous expression system for studying ion channel function, receptor signaling, and protein?Cprotein interactions. The epithelial origin and endogenous expression of many signaling components provide a physiologically relevant yet tractable background for investigating neuronal, cardiac, and other tissue-specific protein functions in a simplified cellular context.
CACNG6 encodes the gamma-6 auxiliary subunit of voltage-gated calcium channels, a transmembrane protein that modulates channel gating kinetics, voltage dependence, and plasma membrane trafficking. In neurons, CACNG6 expression is regulated by neuronal activity and calcium-dependent signaling cascades, including pathways mediated by the cAMP response element-binding protein (CREB). The gamma-6 subunit physically interacts with pore-forming CACNA1 (alpha1) subunits and cytoplasmic beta subunits to fine-tune calcium influx. Downstream of channel activation, calcium/calmodulin-dependent protein kinase II (CaMKII) and CREB are key effectors that translate calcium signals into transcriptional responses. Representative pathway components include CACNA1C, CACNB1, calmodulin, CaMKII, and protein kinase A (PKA), forming a network essential for cardiac conduction, neuromuscular transmission, and neuronal excitability.
In the HEK293T host, disruption of CACNG6 creates a controlled loss-of-function model to dissect the regulatory role of the gamma-6 subunit independent of other neuronal or cardiac cell-type-specific factors. Although HEK293T cells do not fully recapitulate native excitable cell environments, they endogenously express several calcium channel subunits and downstream signaling molecules, making them a convenient platform to co-express specific channel subunit combinations and study auxiliary subunit effects on channel properties. The knockout is expected to alter calcium handling and downstream signaling cascades, providing a clean background for reconstitution experiments where wild-type or mutant CACNG6 can be reintroduced to directly assess its contribution to channel function and trafficking.
This CACNG6 knockout model is ideally suited for a range of applications, including mechanistic studies of voltage-gated calcium channel regulation, high-throughput drug screening for modulators of gamma subunit function, and investigation of calcium-dependent signaling in a heterologous system. Representative assays include Fluo-4-based calcium imaging to monitor real-time intracellular calcium dynamics, patch-clamp electrophysiology to record channel currents, RT-qPCR to assess compensatory changes in channel gene expression, western blotting to quantify calcium signaling protein levels, and co-immunoprecipitation to map subunit interactions. These tools make the product valuable for research into neurological disorders such as epilepsy and febrile seizures, where CACNG6 mutations have been implicated. For further technical details, please contact Ascent Research.
