The EEF2K Knockout HEK293 Polyclonal Cells consist of a CRISPR/Cas9-edited polyclonal knockout cell population originating from human embryonic kidney HEK293 cells, engineered for loss-of-function analysis of the EEF2K gene. This heterogeneous knockout model enables systematic investigation of eukaryotic elongation factor 2 kinase (EEF2K) in the regulation of translation elongation and its integration with cellular energy and stress signaling networks.
HEK293 cells, derived from human embryonic kidney, are a widely employed epithelial model system prized for their ease of transfection, rapid growth, and broad utility in signal transduction and protein expression studies. Their well-characterized signaling architecture, including functional mTOR and AMPK pathways, provides a tractable background for dissecting EEF2K-dependent mechanisms that control global protein synthesis.
EEF2K encodes a calcium/calmodulin-dependent kinase that phosphorylates eukaryotic elongation factor 2 (EEF2) at Thr56, thereby reducing its affinity for the ribosome and inhibiting translation elongation. EEF2K is activated by AMPK in response to energy stress, while mTORC1 suppresses its activity under nutrient-rich conditions. Additional regulation by cAMP and direct interaction with calmodulin further position EEF2K as a critical node that couples metabolic cues to translational output. Its primary downstream effect is the modulation of EEF2 activity, which directly impacts global protein synthesis rates.
In the HEK293 cellular context, EEF2K disruption provides a powerful tool to examine how loss of this kinase alters translational adaptation to nutrient deprivation, growth factor withdrawal, and oxidative stress. Given that HEK293 cells maintain robust translational machinery, this model is particularly suited for studying the role of EEF2K in cancer cell proliferation and survival, as well as its contributions to neurodegeneration and cardiovascular pathologies, where dysregulated protein homeostasis is a hallmark.
Typical applications include monitoring phosphorylation changes of EEF2 by Western blotting, assessing global translation rates via puromycin incorporation, conducting ribosome profiling to map translational landscapes, and performing cell viability assays under stress conditions. The polyclonal knockout population is also amenable to kinase inhibitor screening and phenotypic rescue experiments. For further details or to discuss custom knockout cell solutions, please contact Ascent Research.
