Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5675484 | Virus Research | 2017 | 5 Pages |
â¢A TMUV-binding protein of approximately 70-kDa was identified to be HSPA9.â¢HSPA9 colocalized with TMUV on the surface of DF-1 cells.â¢An anti-HSPA9 antibody could inhibit TMUV infection in DF-1 cells.
This study attempts to identify receptor elements for Tembusu virus (TMUV) on DF-1 cells. Using co-immunoprecipitation and virus overlay protein binding assays, we identified a TMUV-binding protein of approximately 70-kDa on DF-1 cell membranes. Mass spectroscopy identified the protein to be heat shock protein (HSP) A9, which was reconfirmed by an anti-HSPA9 antibody. Indirect immunofluorescence demonstrated a significant degree of colocalization between HSPA9 and TMUV on cell surface. Additionally, an antibody against HSPA9 could inhibit TMUV infection in DF-1 cells in a dose-dependent manner. These results might suggest that HSPA9 is a putative receptor for TMUV.