ART4 and Hepatitis: For example, it is known that the Rab1-activating protein TBC1D20 is involved in the hepatitis C, HIV-1 and HSV replication cycle [47,48,49] and especially Rab1B plays an important role in Ebola virus particle assembly [50] and ER-to-Golgi transport of the vesicular stomatitis virus glycoprotein [28].