An anti-FAdV-4-fiber2 monoclonal antibody (mAb 3C2) was kindly provided by Prof. Jianqiang Ye (Yangzhou University, Yangzhou, Jiangsu, China). A rabbit polyclonal anti-FAdV-4-penton antibody was generated by our laboratory. Rabbit polyclonal anti-caveolin-1 and clathrin HC antibodies were purchased from Santa Cruz Biotechnology (CA, USA). Anti-β-actin antibodies, HRP-conjugated secondary antibodies, and FITC-conjugated anti-mouse and anti-rabbit IgG were purchased from TransGen Biotech (Beijing, China). TRITC-phalloidin and FITC-dextran were purchased from Sigma.
A pGFP-V-RS (vector), scramble shRNAs, and shRNAs targeting clathrin heavy chain (CHC) (shCHC) were kindly provided by Dr Hung-Jen Liu (Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan). siRNA targeting caveolin-1 (5′-CCACTTTCACTGTAACAAA-3′) and negative siRNA were synthesized by RiboBio (Guangzhou, China).