id author title date pages extension mime words sentences flesch summary cache txt cord-272408-8flsy5o1 Chen, Rui Identification of the immunodominant neutralizing regions in the spike glycoprotein of porcine deltacoronavirus 2020-01-15 .txt text/plain 6054 363 55 The neutralizing activity of the rabbit and mouse anti -NTD, -CTD, and -S2 polyclonal antisera was assessed 4 weeks after the initial inoculation by a FFN assay, as previously described (Okda et al., 2015) . Sera from rabbits inoculated with NTD, CTD, and S2 were tested for neutralizing antibodies against PDCoV by ELISA, virus neutralization (VN), and fluorescent focus neutralization (FFN) assays. These results demonstrate that the NTD, CTD, and S2 proteins induced potent anti-PDCoV neutralizing antibody responses in the immunized animals. We found that three regions in PDCOV S protein, including NTD (aa 50-286), CTD (aa 278-616), and S2 (aa 601-1087), can induce neutralizing antibody responses, and the specific polyclonal mouse and rabbit sera efficiently inhibit PDCoV entry and infection in ST cells. Cell attachment domains of the porcine epidemic diarrhea virus spike protein are key targets of neutralizing antibodies ./cache/cord-272408-8flsy5o1.txt ./txt/cord-272408-8flsy5o1.txt