id author title date pages extension mime words sentences flesch summary cache txt cord-290231-4m9lj0uq Guirakhoo, Farshad The Murray Valley encephalitis virus prM protein confers acid resistance to virus particles and alters the expression of epitopes within the R2 domain of E glycoprotein 1992-12-31 .txt text/plain 5738 261 48 Abstract To study the role of the precursor to the membrane protein (prM) in flavivirus maturation, we inhibited the proteolytic processing of the Murray Valley encephalitis (MVE) virus prM to membrane protein in infected cells by adding the acidotropic agent ammonium chloride late in the virus replication cycle. By using monoclonal antibodies (MAbs) and protease maps, we previously demonstrated that the E glycoprotein of tick-borne encephalitis (TBE) virus undergoes an irreversible conformational change, predominantly in the epitopes of domain A, at mildly acidic pH . To understand the role of prM protein in virus maturation and its interaction with the E glycoprotein, we investigated the effect that ammonium chloride had on MVE viruses grown in C6/36 mosquito cells. The reactivities of MAbs defining nine distinct epitopes on the MVE E glycoprotein were compared on M-and prMcontaining viruses using supernatants of ammonium chloride-treated or untreated virus-infected C6/36 cells. ./cache/cord-290231-4m9lj0uq.txt ./txt/cord-290231-4m9lj0uq.txt