The DNAJC11 Knockout HeLa Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population in which the DNAJC11 gene has been disrupted. This product provides a powerful in vitro tool for investigating the role of DNAJC11 in mitochondrial inner membrane organization and apoptosis regulation. As a polyclonal population, it retains genetic heterogeneity, making it well-suited for population-level studies of mitochondrial phenotypes and drug responses.
HeLa cells are an extensively characterized human cervical carcinoma cell line with an HPV18-positive, p53-inactive background, serving as a classic epithelial model for cancer research. In HeLa cells, mitochondrial dynamics and apoptotic networks are inherently altered due to viral oncogene expression and p53 deficiency, creating a relevant cellular context for dissecting DNAJC11-dependent mechanisms that govern cristae architecture and cell death sensitivity.
DNAJC11 encodes a mitochondrial inner membrane co-chaperone that directly interacts with key components of the mitochondrial contact site and cristae organizing system (MICOS), including MIC60 and MIC19, as well as with SAMM50 and the dynamin-like GTPase OPA1. This protein functions downstream of cellular stress signals and the mitochondrial import machinery, and it plays a critical role in maintaining MICOS complex stability and regulating OPA1 processing. Mechanistically, DNAJC11 supports cristae junction integrity, and its disruption leads to aberrant cristae morphology and altered apoptosis sensitivity by affecting OPA1-dependent cristae remodeling.
In the p53-inactive HeLa background, the DNAJC11 knockout model enables researchers to study mitochondrial-mediated apoptosis pathways that operate independently of p53, which is particularly relevant for understanding how cancer cells evade cell death and for identifying novel drug targets. This model is valuable for exploring mitochondrial disorders, oxidative phosphorylation deficits, and the mitochondrial unfolded protein response, as DNAJC11??s loss may exacerbate mitochondrial stress in a cancer cell environment.
Researchers can employ this knockout population to perform western blotting for OPA1 and MICOS components, immunofluorescence staining to visualize mitochondrial morphology, apoptosis assays, cell viability assays, metabolic flux analysis, and co-immunoprecipitation experiments to examine MICOS complex interactions. Applications extend to drug sensitivity studies, investigation of mitochondrial dynamics, and cancer cell metabolism research. For additional details, please contact Ascent Research.
