Table 2.
Rab proteins involved in HCV replication.
| Rab | Physiological roles | References | Role for HCV | References |
|---|---|---|---|---|
| Rab1 | Vesicular targeting and fusion to the Golgi complex by recruiting the tethering factor p115 and v-SNAREs | Allan et al., 2000 Yang et al., 2016 |
TBC1D20 that acts as the Rab GAP for Rab1 is a binding partner of NS5A, depletion of Rab1 impairs replication by unclear mechanism Post-TGN transport and release of viral particles |
Sklan et al., 2007a Sklan et al., 2007b |
| Rab5a,b,c | Early endosome fusion, early endosome biogenesis, nuclear envelope disassembly in mitosis | Wandinger-Ness and Zerial, 2014 | Association with replicon complex; binding to NS4B, relevance for formation of replicon complexes | Matsuda et al., 2014 Farquhar et al., 2012 |
| Rab7a | Endosome maturation; dynein dependent transport of MVBs to lysosomes; fusion of MVBs with lysosomes | Rink et al., 2005 van der Kant et al., 2013 Vanlandingham and Ceresa, 2009 |
Association with replicon complex;, relevance for formation of replicon complexes | Elgner et al., 2016 Bayer et al., 2016 Wozniak et al., 2016 |
| Rab18 | LD-associated; promotes growth of LDs, tethering of LDs to cytoplasmic site of ER Involved in ER-Golgi trafficking ER associated; regulates ER dynamics |
Xu et al., 2018 Ozeki et al., 2005 Gerondopoulos et al., 2014 |
GTP-loaded Rab18 binds to NS5A; Silencing impairs HCV replication |
Salloum et al., 2013 Dansako et al., 2014 |
| Rab27a | Secretion of cytotoxic granules; exosome secretion by docking of MVB on plasma membrane | Tsuboi and Fukuda, 2006 Ménasché et al., 2008 Ostrowski et al., 2010 |
Required for viral replication and post-TGN release of viral particles, effect on miR-122 level | Chen et al., 2015 |