The CCDC47 Knockout HeLa Polyclonal Cells represent a CRISPR/Cas9-mediated gene-disrupted polyclonal cell population designed to eliminate CCDC47 function in a HeLa background. This loss-of-function model provides a heterogeneous pool of edited cells, enabling robust investigation of CCDC47-dependent processes without clonal selection artifacts. The polyclonal format preserves genetic diversity, facilitating studies of population-level responses to gene disruption in endogenous contexts.
HeLa cells are a widely utilized human cervical adenocarcinoma epithelial line with integrated HPV-18 sequences that inactivate the tumor suppressors p53 and Rb. This immortalized line exhibits high proliferation rates, tumorigenicity, and adaptability to various experimental conditions, making it a standard host for studying cancer biology, signal transduction, and drug responses. Their robust growth and well-characterized signaling networks provide a reliable platform for gene editing studies.
CCDC47 encodes a core subunit of the endoplasmic reticulum membrane protein complex (EMC), which is essential for co-translational insertion of multipass transmembrane proteins and maintenance of ER proteostasis. The protein functions within the ER quality-control network, interacting with EMC subunits (EMC1, EMC2, EMC3), ER chaperones such as BiP/GRP78, and ER-associated degradation (ERAD) factors like Derlin-1 and p97/VCP. CCDC47 activity is closely linked to the unfolded protein response (UPR); under ER stress, it is regulated by ATF4 and XBP1s downstream of PERK and IRE1?? sensing. Disruption of CCDC47 impairs ER protein processing, triggering UPR signaling cascades that activate downstream effectors including CHOP and GRP78, and can sensitize cells to ER stress-induced apoptosis.
In the HeLa context, CCDC47 knockout provides a powerful tool to dissect ER stress biology within a tumorigenic background. HeLa cells depend on efficient protein secretion and membrane protein biogenesis to sustain their proliferative capacity, and loss of EMC function exposes vulnerabilities that can be exploited in cancer drug discovery. This model is particularly relevant for studying how cancer cells cope with proteotoxic stress and for identifying synthetic lethal interactions. Moreover, it serves as a cellular system to investigate molecular mechanisms underlying CCDC47-related neurodevelopmental disorders, where ER stress dysregulation is implicated.
Researchers can employ this polyclonal knockout population in diverse experimental workflows. Typical applications include monitoring UPR activation via Western blotting for GRP78 and CHOP, quantifying XBP1 splicing and ATF4 expression by RT-qPCR, assessing ER morphology through immunofluorescence, and measuring apoptosis with Annexin V/PI flow cytometry. Functional studies may use ER stress inducers such as tunicamycin or thapsigargin in cell viability assays, while co-immunoprecipitation can probe EMC complex integrity. Protein turnover assays evaluating ERAD substrates further define CCDC47’s role in quality control. For additional information or technical assistance, please contact Ascent Research.
