The ABL2 Knockout HAP1 Polyclonal Cells from Ascent Research provide a CRISPR/Cas9-edited polyclonal knockout population targeting the ABL2 (ARG) gene in the HAP1 human cell line. This product offers a loss-of-function model for studying ABL2, a non-receptor tyrosine kinase implicated in cytoskeletal regulation, adhesion, and migration. The polyclonal population contains a heterogeneous mixture of edited cells, enabling robust screening and functional assays without the need for single-cell cloning. This format is particularly suited for experiments where polygenic diversity may reveal phenotypic trends masked in clonal isolates.
The host cell line, HAP1, is a near-haploid human line originally derived from the KBM-7 chronic myeloid leukemia cell background. Its haploid karyotype simplifies genetic manipulation and knockout screening, as single-allele disruption suffices for loss-of-function studies. HAP1 cells maintain stable growth and retain many signaling pathways characteristic of adherent cancer cells, making them a versatile platform for investigating gene function in oncology and cell biology. The well-characterized nature of HAP1 enables straightforward integration of ABL2 knockout data with existing genomic and proteomic datasets.
ABL2 functions as a key signal transducer downstream of integrin and growth factor receptor engagement, particularly the platelet-derived growth factor receptor (PDGFR). Upon activation by upstream cues such as integrin ligation or reactive oxygen species (ROS), ABL2 phosphorylates scaffold proteins including p130Cas and paxillin. This phosphorylation recruits adaptor proteins like Crk to p130Cas, facilitating activation of the guanine nucleotide exchange factor C3G and downstream effector Rac1, thereby promoting actin polymerization and cell motility. ABL2 also interacts with ABI1, ABI2, SH2B1, and PSTPIP1, which modulate its activity and subcellular localization. In the HAP1 knockout model, disruption of ABL2 perturbs this signaling cascade, providing a clean system to dissect contributions of the ABL2?Cp130Cas?CCrk?CRac1 axis to cytoskeletal dynamics and adhesion.
The ABL2 knockout HAP1 polyclonal population is a valuable tool for mechanistic studies of cancer metastasis, where ABL2-driven cell migration and invasion are frequently dysregulated. The haploid background reduces genetic redundancy, potentially unmasking phenotypes that are subtle in diploid cells, and the polyclonal nature avoids artifacts associated with clonal selection. This model allows researchers to interrogate how loss of ABL2 affects integrin-mediated adhesion, PDGF-induced chemotaxis, and oxidative stress responses, linking cellular phenotypes to molecular readouts. Additionally, ABL2??s emerging roles in neurodevelopmental disorders expand the utility of this model beyond oncology.
Typical applications include Western blotting and immunofluorescence to assess alterations in ABL2 downstream targets and localization, transwell migration and invasion assays to quantify metastatic potential, and co-immunoprecipitation to map disrupted protein interactions. Phospho-signaling analysis and flow cytometry can further elucidate changes in pathway activation and cell surface receptor expression. This polyclonal knockout population enables robust, reproducible experiments for academic and pharmaceutical researchers probing the ABL2 signaling network. For inquiries and technical support, please contact Ascent Research.
