The HNRNPUL2 Knockout HAP1 Polyclonal Cells product provides a CRISPR/Cas9-edited polyclonal knockout cell population that disrupts the HNRNPUL2 gene in a human near-haploid cell background. This heterogeneous knockout pool is generated using CRISPR/Cas9-mediated gene disruption, enabling loss-of-function studies without selection of a single clonal isolate. The polyclonal format captures diverse editing outcomes, offering a robust model for interrogating HNRNPUL2 function in RNA processing, chromatin dynamics, and genome maintenance pathways.
The host HAP1 cell line is a near-haploid chronic myeloid leukemia (CML) model derived from the KBM-7 parental line. HAP1 cells exhibit a fibroblast-like adherent morphology and a predominantly haploid karyotype, which greatly facilitates gene knockout by minimizing the need for biallelic targeting. This genetic simplicity reduces confounding from multiple alleles and enables efficient CRISPR/Cas9-mediated disruption, making HAP1 a widely adopted platform for functional genomic screens and mechanistic studies in a cancer-relevant context.
HNRNPUL2 encodes an RNA-binding protein that participates in multiple nuclear processes, including pre-mRNA splicing as part of spliceosomal snRNP complexes, in concert with SR proteins, and mRNA export through interactions with NXF1 and p15. It also contributes to chromatin organization and the DNA damage response. HNRNPUL2 interfaces with key nuclear factors such as HNRNPU, SAFB1, and SAFB2, and associates with RNA polymerase II and nuclear matrix proteins. Disruption of HNRNPUL2 impairs RNA processing and export, altering gene expression and potentially compromising DNA damage repair, thus linking this factor to cancer biology pathways.
In the HAP1 cellular context, HNRNPUL2 knockout provides a tractable system for dissecting the interplay between RNA metabolism and chromatin architecture. The near-haploid genome ensures that gene disruption directly manifests at the protein level, facilitating clear phenotypic readouts. This model allows researchers to explore how HNRNPUL2 loss impacts spliceosome assembly, mRNA transport fidelity, and chromatin-associated functions, all within a leukemic cell environment that is relevant to oncogenic signaling and genome instability studies.
Typical applications include functional characterization of RNA processing mechanisms via RNA-seq and RT-qPCR, chromatin organization assays by immunofluorescence, and DNA damage repair kinetics using comet or ??-H2AX foci analysis. Interaction partners can be validated by co-immunoprecipitation, while proliferation and apoptosis assays assess cancer-relevant phenotypes. The polyclonal nature provides a heterogeneous response profile that may better represent population-level effects. For additional support or custom experimental strategies, please contact Ascent Research.
