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Syntaxin 17 localization in hepatocytes. Ultrathin cryosection (A) and Epon section (B) of rat hepatocytes, both showing the SER-rich region adjacent to a bile capillary (BC). (A) Immunogold label for syntaxin 17 (10-nm gold) is predominantly associated with the SER, whereas RER cisternae (ER) show little or no labeling. (B) The highly convoluted SER membranes are more clearly delineated in Epon sections. M, mitochondrion; P, peroxisome. Bars, 200 nm (A) and 500 nm (B).
