Dengue Virus Uses a Non‐Canonical Function of the Host GBF1‐Arf‐COPI System for Capsid Protein Accumulation on Lipid Droplets

Publisher: John Wiley & Sons Inc

E-ISSN: 1600-0854|16|9|962-977

ISSN: 1398-9219

Source: TRAFFIC (ELECTRONIC), Vol.16, Iss.9, 2015-09, pp. : 962-977

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Abstract

The dengue virus capsid protein accumulates progressively around cellular organelles named lipid droplets (LDs) during infection. Using different methods of intervention, we defined that capsid transport from virally modified endoplasmic reticulum (ER) membranes to LDs requires a functional GBF1 protein. The process was found to be COPI dependent, while it was independent of both COPII components and Golgi integrity, supporting a non‐canonical function of GBF1/ARF/COPI transport system.