id author title date pages extension mime words sentences flesch summary cache txt cord-330907-srb8ac7l Leparc-Goffart, Isabelle Altered Pathogenesis of a Mutant of the Murine Coronavirus MHV-A59 Is Associated with a Q159L Amino Acid Substitution in the Spike Protein 1997-12-08 .txt text/plain 5445 288 61 We have previously shown that C12 has two amino acid substitutions relative to wild type virus in the spike protein, Q159L (within a region of S1 shown to bind to viral receptor in anin vitroassay) and H716D (in the proteolytic cleavage recognition site). for the altered pathogenic properties of the mutant viruses, we compared the sequence of the spike (S) genes The murine coronavirus, mouse hepatitis virus strain of wild type and mutant viruses isolated from persistently A59 (MHV-A59), produces both hepatitis and neurologiinfected glial cells cultures. We have shown previously that the spike (S) protein from the supernatant of either the ''C'' culture of persisencoded by the C12 mutant has two amino acid substitutently infected glial cells at 1 week (C3), 6 weeks (C5), tions as compared with the wild type S protein. ./cache/cord-330907-srb8ac7l.txt ./txt/cord-330907-srb8ac7l.txt