The KNOP1 Knockout HAP1 Polyclonal Cells provide a CRISPR/Cas9-edited polyclonal knockout population from the HAP1 cell line for studying KNOP1, an essential splicing factor. This pool contains cells with diverse INDELs in KNOP1, causing gene disruption across the culture. The polyclonal format offers a loss-of-function model without single-cell cloning, suitable for high-throughput screens and minimizing clonal artifacts, enabling investigation of KNOP1 ablation effects on cellular phenotypes.
The HAP1 cell line is a near-haploid human myeloid leukemia line derived from a chronic myeloid leukemia patient. Its haploid karyotype simplifies genetic manipulation and loss-of-function analyses, as single-allele disruption directly reveals phenotypic consequences. HAP1 cells maintain leukemic characteristics, providing a relevant model for cancer biology and hematopoiesis studies. Rapid growth and compatibility with diverse biochemical and cell-based assays make HAP1 a versatile platform for target validation and drug discovery.
KNOP1 encodes a core component of the U5 small nuclear ribonucleoprotein (snRNP) that is integral to spliceosome assembly and catalytic activation. Within the U5 snRNP, KNOP1 interacts critically with PRPF8 and SNRNP200, two central regulators of spliceosome dynamics. This complex mediates precise removal of introns from pre-mRNA, a fundamental step in eukaryotic gene expression. KNOP1’s disruption leads to widespread splicing alterations, underscoring its essential function in maintaining transcriptome integrity.
In the HAP1 background, KNOP1 disruption creates a powerful model for dissecting spliceosome function in a human myeloid leukemia context. The near-haploid genome ensures that knockout phenotypes are directly observable without compensation from a second allele. Since mutations in spliceosomal components, including KNOP1 interactors, are linked to retinitis pigmentosa and splicing factor-related disorders, this model is relevant for disease mechanism studies. Researchers can examine how impaired splicing affects cell viability, proliferation, and differentiation in a disease-relevant setting.
This knockout pool supports diverse assays for splicing and disease research. RT-PCR quantifies splicing efficiency changes of target transcripts, while RNA-seq enables genome-wide alternative splicing analysis. Co-immunoprecipitation with PRPF8 or SNRNP200 reveals protein interaction networks within the U5 snRNP. The model is also suitable for small-molecule splicing modulator screens or validation of KNOP1’s role in leukemic growth. For more information on product validation and experimental protocols, contact Ascent Research.
