TY - JOUR AU1 - Ohta, Keisuke AU2 - Matsumoto, Yusuke AU3 - Nishio, Machiko AB - We previously found that infection with human parainfluenza virus type 2 (hPIV-2), a member of the genus Orthorubulavirus, family Paramyxoviridae, causes filamentous actin (F-actin) formation to promote viral growth. In the present study, we investigated whether similar regulation of F-actin formation is observed in infections with other rubulaviruses, such as parainfluenza virus type 5 (PIV-5) and simian virus 41 (SV41). Infection with these viruses caused F-actin formation and RhoA activation, which promoted viral growth. These results indicate that RhoA-induced F-actin formation is important for efficient growth of these rubulaviruses. Only SV41 and hPIV-2 V and P proteins bound to Graf1, while the V and P proteins of PIV-5, mumps virus, and hPIV-4 did not bind to Graf1. In contrast, the V proteins of these rubulaviruses bound to both inactive RhoA and profilin 2. These results suggest that there are common and unique mechanisms involved in regulation of F-actin formation by members of the genus Orthorubulavirus. TI - Common and unique mechanisms of filamentous actin formation by viruses of the genus Orthorubulavirus JF - Archives of Virology DO - 10.1007/s00705-020-04565-y DA - 2020-04-25 UR - https://www.deepdyve.com/lp/springer-journals/common-and-unique-mechanisms-of-filamentous-actin-formation-by-viruses-2bEuvdBn4g SP - 799 EP - 807 VL - 165 IS - 4 DP - DeepDyve ER -