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  • Title: Ultrastructure and localization of E proteins in cultured neuron cells infected with Japanese encephalitis virus.
    Author: Wang JJ, Liao CL, Chiou YW, Chiou CT, Huang YL, Chen LK.
    Journal: Virology; 1997 Nov 10; 238(1):30-9. PubMed ID: 9375006.
    Abstract:
    A unique structure and in situ localization of E proteins were demonstrated in cultured neurons infected with neurovirulent and aneurovirulent strains of local Japanese encephalitis virus (JEV). Dilated rough endoplasmic reticulum (rER) containing smooth membrane structures (SMS) was continuous with the outer membrane of the nuclear envelope. These membranes were found to be connected to unique dense bodies, membrane vesicle structures (MVS). The de novo formation of SMS, annulate lamellae, and the appearance of MVS indicated proliferation of the membranous system in response to JEV infection. E proteins were possibly assembled in the virions in the nuclear envelope or rER or on the plasma membrane. The interconnections between MVS, rER, and the nuclear envelope and immunogold labeling of E proteins on the MVS provided strong evidence that MVS serve as a reservoir of JEV components during virus assembly.
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