The H1-0 Knockout HEK293T Polyclonal Cells represent a CRISPR/Cas9-edited polyclonal knockout cell population in which the human H1-0 gene has been disrupted via CRISPR/Cas9-mediated gene targeting. This product provides a heterogeneous pool of edited HEK293T cells harboring loss-of-function mutations in the H1-0 locus, enabling robust functional studies of linker histone H1.0 without clonal selection. The polyclonal format captures diverse editing events across the cell population, offering a representative model for investigating H1-0-dependent phenotypes while minimizing clonal bias.
HEK293T cells are a widely used human embryonic kidney epithelial cell line transformed with adenovirus 5 DNA and stably expressing the SV40 large T antigen. This background confers high transfectability, rapid proliferation, and the capacity for efficient viral production, making HEK293T a versatile host for gene perturbation studies. Their epithelial origin and transformed state provide a relevant context for examining chromatin dynamics in a proliferative cellular environment.
H1-0 encodes histone H1.0, a linker histone that binds nucleosomal linker DNA to promote chromatin compaction and transcriptional repression. It functions downstream of transcriptional regulators such as SP1, AP-1, and E2F1, and is regulated by the RB1 tumor suppressor and growth factor signaling. H1.0 interacts with nucleosomes, HMGB1, HP1, PARP1, NAP1L1, and CAF-1 to stabilize higher-order chromatin structure. Its loss leads to chromatin decondensation and derepression of downstream targets including pluripotency factors POU5F1, NANOG, and SOX2, as well as the cell cycle regulator CCND1, thereby altering the epigenetic landscape and gene expression programs.
In the HEK293T background, disruption of H1-0 disrupts normal chromatin organization, potentially affecting global transcription, cell cycle progression, and genome stability. Given the cell line’s transformed phenotype and high expression of viral oncoproteins, this knockout model enables dissection of how linker histone H1.0 maintains repression of developmental and proliferative genes in a context susceptible to epigenetic rewiring. It offers a powerful system to study the interplay between chromatin structure, oncogenic transformation, and gene silencing.
This polyclonal knockout cell population is suitable for a broad range of chromatin and epigenetics research applications, including ChIP-qPCR to assess histone modifications and occupancy, ATAC-seq to map chromatin accessibility, and RNA-seq for transcriptome profiling. Additional applications include western blotting and immunofluorescence for protein analysis, reporter assays for transcriptional activity, and cell proliferation or flow cytometry?Cbased assays to evaluate cell cycle effects. These cells provide a valuable tool for investigating histone function, gene regulation, and mechanisms of cancer and developmental diseases. For further details or technical support, please contact Ascent Research.
