Hemagglutination mediated by the spike protein of cell-adapted bovine torovirus

Kozue Shimabukuro, Makoto Ujike, Toshihiro Ito, Hiroshi Tsunemitsu, Hitoshi Oshitani, Fumihiro Taguchi

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5 Citations (Scopus)


Bovine torovirus (BToV)-Aichi, recently isolated in cultured cells, showed hemagglutination (HA) activity, although the virus has a truncated hemagglutinin-esterase (HE) protein, judging from its gene structure, indicating the existence of another viral protein with HA activity. We examined whether the spike (S) protein possesses HA activity. A BToV antiserum used in this study, reactive to S but not to HE, inhibited HA activity. Furthermore, cells infected with BToV and those expressing S showed hemadsorption (HAD) activity, which was inhibited by the anti-BToV serum; however, HAD activity by expressed HE was not blocked. These data indicate that the S protein of BToV-Aichi is responsible for its HA activity.

Original languageEnglish
Pages (from-to)1561-1566
Number of pages6
JournalArchives of Virology
Issue number7
Publication statusPublished - 2013 Jul


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