DYNC2LI1 Knockout Raji Polyclonal Cells provide a CRISPR/Cas9-edited polyclonal knockout cell population derived from the Raji B lymphoblastoid cell line, enabling functional loss-of-function studies of the dynein-2 light intermediate chain gene DYNC2LI1. This product offers a heterogeneous pool of cells carrying diverse targeted disruptions, delivering a versatile model for interrogating the gene’s role in cellular processes without the constraints of clonal selection. As a polyclonal population, it is particularly suited for experiments where mutational diversity reduces the risk of clonal artifacts and provides a robust representation of the knockout phenotype across a mixed genetic background.
The host Raji cell line is an Epstein-Barr virus (EBV)-positive Burkitt lymphoma-derived B lymphoblastoid line, extensively utilized in immunological and cancer research. These cells exhibit key features of mature B lymphocytes, including capacity for antibody production and antigen presentation, and grow in suspension culture, facilitating scalable experimentation. While B lymphocytes are typically considered non-ciliated, Raji cells may retain latent ciliary programs, and their well-characterized signaling pathways make them a compelling chassis for dissecting non-canonical functions of ciliary proteins.
DYNC2LI1 encodes a light intermediate chain that forms an essential component of the cytoplasmic dynein-2 motor complex, the primary retrograde motor for intraflagellar transport (IFT) within cilia. It directly interacts with the dynein-2 heavy chain DYNC2H1 and other intermediate chains such as DYNC2I1 and DYNC2I2, collectively driving the movement of IFT-A/B particles and signaling cargo from the ciliary tip back to the cell body. This retrograde transport is critical for returning activated signaling receptors like GPR161, thereby controlling the processing and activity of GLI transcription factors (GLI1, GLI2, GLI3) downstream of the SMO receptor in the Hedgehog pathway. Upstream regulators including RFX transcription factors and FOXJ1 orchestrate the expression of ciliary components, while the balanced interplay between kinesin-2 anterograde motors and dynein-2 retrograde motors maintains ciliary structure and signaling competence.
In the context of Raji B lymphoblastoid cells, DYNC2LI1 disruption creates a unique platform to examine ciliary protein roles outside of canonical ciliated environments. Emerging evidence indicates that ciliary proteins can influence cell cycle progression, immune synapse formation, and signal transduction in non-ciliated cells; the knockout of DYNC2LI1 in this hematopoietic background may reveal unexpected contributions to B cell proliferation, antigen presentation, or antibody secretion. The polyclonal knockout design ensures a broad spectrum of mutations, providing a comprehensive loss-of-function profile that can be probed under various experimental conditions, including induction of ciliogenesis through serum starvation.
This polyclonal knockout model is well-suited for a range of research applications, including functional genomics, ciliopathy mechanism studies, and drug screening. Representative assays include RT-qPCR and Western blotting for confirming DYNC2LI1 disruption, immunofluorescence to assess ciliary marker expression (e.g., acetylated tubulin) upon cilia induction, flow cytometry for cell cycle analysis, and Hedgehog pathway reporter assays to monitor GLI transcriptional activity. Co-immunoprecipitation experiments can further probe dynein-2 complex integrity. By providing a versatile tool for exploring the intersection of DYNC2LI1 with Hedgehog signaling, ciliogenesis, and B cell biology, this product facilitates investigations into conditions such as short-rib thoracic dysplasia and Jeune syndrome. For further details or custom requests, please contact Ascent Research.
