The DNTTIP1 Knockout HEK293T Polyclonal Cells are a CRISPR/Cas9-edited heterogeneous pool of HEK293T cells carrying targeted disruptions in the DNTTIP1 gene, which encodes a core subunit of the nucleosome remodeling and deacetylase (NuRD) complex. This polyclonal population contains diverse loss-of-function alleles, providing a robust model for studying DNTTIP1-dependent processes while minimizing clonal artifacts.
HEK293T cells are a derivative of human embryonic kidney HEK293 cells stably expressing SV40 large T antigen, enabling high-efficiency transfection and episomal plasmid replication. Widely used for protein expression, viral packaging, and gene editing, they offer a tractable epithelial system for investigating chromatin biology, signal transduction, and cancer mechanisms.
DNTTIP1 is an integral component of the NuRD complex, which couples ATP-dependent chromatin remodeling with histone deacetylation to silence transcription. Within the complex, DNTTIP1 interacts with HDAC1/2, MTA1/2, MBD2/3, and RBBP4/7, contributing to complex integrity and recruitment to target loci. NuRD-mediated deacetylation of H3K27 and other histones represses genes such as CDKN1A, pro-apoptotic factors, and developmental regulators. DNTTIP1 function is thus critical for cell cycle control, apoptosis, and differentiation. Its dysregulation is linked to gastric and colorectal cancers and neurodevelopmental disorders, highlighting the broad significance of NuRD-dependent repression.
In HEK293T cells, DNTTIP1 knockout disrupts NuRD complex formation, allowing dissection of its role in chromatin organization and gene regulation. The polyclonal knockout format captures diverse editing outcomes, enabling population-level analyses while mitigating guide RNA off-target concerns. Researchers can characterize NuRD composition via co-immunoprecipitation, map histone modification changes by ChIP, and profile transcriptomes via RNA-seq.
Applications include investigating DNTTIP1??s role in transcriptional repression, chromatin dynamics, and cancer biology. Assays such as western blotting for DNTTIP1 and H3K27ac, RT-qPCR of target genes, and flow cytometry for cell cycle and apoptosis provide functional readouts. For discovery-driven studies, RNA-seq and ChIP-qPCR can define DNTTIP1-dependent regulatory networks. This polyclonal knockout model is an essential tool for NuRD research and drug discovery. Contact Ascent Research for ordering and support.
