The KCTD15 Knockout Jurkat Polyclonal Cells represent a CRISPR/Cas9-edited polyclonal cell population derived from the Jurkat human T lymphocyte line, designed for loss-of-function studies of the KCTD15 gene. This product provides a heterogeneous knockout pool, enabling researchers to investigate KCTD15-dependent functions in a T-cell context without clonal selection biases.
Jurkat cells are an immortalized human T lymphocyte line originally established from a patient with acute T-cell leukemia, and they serve as a widely-adopted model for studying T-cell receptor signaling, apoptosis, and leukemogenesis. These cells retain key features of T-cell biology, including the expression of CD3 and other surface markers, making them suitable for investigating signaling pathways relevant to immune function and hematologic malignancies.
KCTD15 encodes a protein containing a BTB/POZ domain, characteristic of substrate adaptors for Cullin3 (CUL3)-based E3 ubiquitin ligase complexes. In neural crest specification, KCTD15 operates downstream of transcription factors such as TFAP2A and PAX3, and it has been implicated in the regulation of Wnt signaling through the degradation of CTNNB1 (??-catenin). The protein interacts directly with CUL3 and TFAP2A, and its activity is associated with the modulation of CDC42 and RHOA, small GTPases that influence cytoskeletal dynamics and cell migration. Additionally, KCTD15 participates in ubiquitin-mediated proteolysis, acting within a network that includes WNT3A, Frizzled (FZD), DVL, and TCF/LEF transcription factors.
In the Jurkat T-cell background, knockout of KCTD15 disrupts its potential role as an adaptor for CUL3-dependent ubiquitination, thereby altering downstream signaling cascades that may intersect with T-cell receptor pathways and leukemia-related processes. Although KCTD15 is primarily studied in neural crest development, its presence in hematopoietic cells and its interaction with key developmental regulators raise the possibility that loss of KCTD15 function could influence T-cell differentiation, survival, or transformation. This model thus provides a unique tool to explore the non-canonical functions of a neural crest gene in a leukemic context.
Typical applications include functional analyses of Wnt/??-catenin signaling in T cells using techniques such as Western blotting, RT-qPCR, and RNA-seq to assess changes in gene and protein expression. The polyclonal knockout cells are also amenable to flow cytometry for immunophenotyping, co-immunoprecipitation to examine protein interactions (e.g., with CUL3 or TFAP2A), and ubiquitination assays to evaluate E3 ligase activity. Researchers investigating the tumor-suppressive or oncogenic roles of KCTD15 in leukemia can use this model to study proliferation, apoptosis, and signaling dynamics. For additional information or to discuss custom generation of CRISPR-edited Jurkat cells, please contact Ascent Research.
