GNG12 Knockout HAP1 Polyclonal Cells constitute a CRISPR/Cas9-edited polyclonal knockout cell population engineered to disrupt the GNG12 gene, which encodes the G protein gamma 12 subunit. This tool provides a loss-of-function model for investigating the role of GNG12 in heterotrimeric G protein signaling. The polyclonal format offers a heterogeneous pool of edited cells, suitable for population-level analyses without clonal isolation artifacts. As a targeted gene disruption model, it enables functional studies of GNG12-dependent pathways in a well-defined cellular context. Researchers can employ this knockout population to dissect signaling cascades and validate molecular interactions in drug discovery and basic biology.
The host cell line, HAP1, is a near-haploid human cell line derived from the KBM-7 chronic myeloid leukemia (CML) blast crisis line. It exhibits fibroblast-like adherent morphology and retains a male karyotype. The near-haploid state minimizes genetic redundancy, making HAP1 particularly valuable for haploid genetic screens and efficient knockout generation. Its hematopoietic malignancy origin provides a relevant background for cancer biology studies, including those focusing on signal transduction, proliferation, and migration. This cell line is widely adopted for CRISPR-based functional genomics due to its stable haploid complement and ease of culture.
GNG12 encodes an essential gamma subunit that complexes with G?? to form G?¦? dimers upon G protein-coupled receptor (GPCR) activation by agonists such as SDF-1, LPA, and adrenaline. These dimers directly regulate downstream effectors including phospholipase C ?? (PLC??), phosphoinositide 3-kinase (PI3K), and adenylyl cyclase, thereby modulating second messengers like IP3, DAG, and cAMP. GNG12 participates in signaling networks mediated by CXCR4, adrenergic, and dopamine receptors, linking extracellular stimuli to MAPK/ERK and PI3K-Akt cascades. It also interacts with G?? subunits (G??i/o, G??q/11) and regulators such as RGS proteins, orchestrating calcium flux and transcriptional responses via transcription factors like AP-1 and CREB.
In HAP1 cells, disruption of GNG12 is predicted to impair G?¦?-mediated effector activation, leading to altered phosphorylation of ERK and AKT, dysregulated calcium mobilization, and attenuated migratory responses. Given the CML origin, this model is particularly relevant for studying GPCR contributions to leukemogenesis and hematopoietic signaling. Moreover, because GNG12 is implicated in various solid tumors??including breast cancer, glioblastoma, and melanoma??the knockout system can be extended to explore oncogenic signaling dependencies. The near-haploid background enhances the penetrance of the knockout phenotype, simplifying genotype-phenotype correlations in drug sensitivity screens and synthetic lethality studies.
This product supports a range of experimental applications, such as elucidating GNG12-dependent GPCR signaling mechanisms and validating drug targets in cancer cell migration and proliferation assays. Representative techniques include western blotting for GNG12 and downstream effectors, cAMP and calcium flux measurements, Boyden chamber migration/invasion assays, and phospho-ERK/AKT signaling analysis. Co-immunoprecipitation can verify altered G protein complex assembly, while RNA-seq enables transcriptomic profiling of knockout effects. The polyclonal population is also suitable for haploid genetic screens to identify synthetic lethal interactions. For further details and technical support, please contact Ascent Research.
