id author title date pages extension mime words sentences flesch summary cache txt cord-253615-qylm0koe Müller, Marcel A Human Coronavirus NL63 Open Reading Frame 3 encodes a virion-incorporated N-glycosylated membrane protein 2010-01-15 .txt text/plain 5810 305 51 In-silico analysis of potential glycosylation sites and membrane topology suggest properties similar to SARS-CoV ORF 3a protein ( Figure 1B and Table 1 ). To analyze the expression of ORF 3 protein during viral replication, colon carcinoma cells (CaCo-2) and Rhesus monkey kidney cells (LLC-MK2) cells were infected with hCoV-NL63 and an immunofluorescence assay (IFA) was done after two and four days, respectively. In contrast to virus-infected cells, cells overexpressing ORF 3 protein from plasmid with an N-terminal FLAG epitope showed only a single band in Western blot whose migration was consistent with the hypothetical unglycosylated form ( Figure 5B, left panel) . Severe acute respiratory syndrome coronavirus group-specific open reading frames encode nonessential functions for replication in cell cultures and mice Severe acute respiratory syndrome coronavirus 3a protein is released in membranous structures from 3a protein-expressing cells and infected cells ./cache/cord-253615-qylm0koe.txt ./txt/cord-253615-qylm0koe.txt