SNAP23 is essential for germination of EV-D68 replication organelles.

ABSTRACT: Picornaviruses rearrange host cell membranes to facilitate their own replication. Here we investigate the Qbc SNARE, SNAP23, which is found at the plasma membrane and plays roles in exocytosis. We found that knockdown of SNAP23 expression inhibits virus replication but not release from cells. Knocking down SNAP23 inhibits viral RNA replication and synthesis of structural proteins. Normal cellular levels of SNAP23 are required for an early step in virus production, prior to or at the stage of virus RNA replication. We report that SNAP23 knockdown generates large, electron-light structures, and that infection of cells with these structures does not alter them, and those cells fail to generate viral RNA replication sites. We suggest that SNAP23 may play a role in maintaining membranes and lip

SUBMITTER: Miller K 

PROVIDER: S-EPMC9817470 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature