The GORAB Knockout Jurkat Polyclonal Cells are a CRISPR/Cas9-edited polyclonal cell population lacking functional GORAB expression. This gene disruption tool is designed for the study of GORAB-dependent processes in an immortalized human T lymphocyte background. The polyclonal format ensures diverse knockout alleles, providing a robust model for population-level analyses of Golgi-associated functions.
Jurkat cells are a widely utilized human T lymphocyte line originally derived from the peripheral blood of a 14-year-old male with acute T cell leukemia. These suspension cells retain key features of T cell biology, including antigen receptor signaling, activation cascades, and apoptosis pathways, making them a standard model for immunological and cancer research. Their rapid growth and ease of transfection further enhance their utility in gene editing applications.
GORAB encodes a trans-Golgi network golgin that acts as an effector of RAB6 GTPases, interacting directly with RAB6A and RAB6B. Within the Golgi complex, GORAB orchestrates secretory vesicle trafficking and protein glycosylation by coordinating with matrix proteins such as GM130 and Golgin-97 and the COPI vesicle coat complex. Downstream, GORAB functionality is required for efficient collagen secretion and proper organization of extracellular matrix components, while it influences the activity of Golgi-localized glycosyltransferases. Disruption of GORAB leads to impaired glycosylation and secretory defects, phenocopying connective tissue disorders like geroderma osteodysplasticum.
In the Jurkat T lymphocyte context, GORAB knockout cells present a unique opportunity to dissect Golgi-dependent secretory pathways critical for immune cell function. T cell activation and effector responses rely heavily on glycosylated surface receptors and timely cytokine secretion, both dependent on intact Golgi trafficking. By abrogating GORAB, researchers can investigate how Golgi organization defects alter T cell signaling, surface marker expression, and cytokine release profiles. This model is particularly suited for studying the intersection of Golgi biology and adaptive immunity.
Key applications include fluorescent microscopy-based assessment of Golgi morphology using GM130 or Giantin markers, quantitative flow cytometry to detect glycosylation changes on CD3, CD28, or other surface proteins, and secretory reporter assays with Gaussia luciferase to monitor protein secretion dynamics. Additional uses encompass cytokine secretion profiling by ELISA or multiplex assays, gene expression analysis for Golgi stress sensors, and disease modeling of progeroid syndromes such as geroderma osteodysplasticum. For further technical details and ordering information, please contact Ascent Research.
