MARVELD2 and infection: In addition, TRiC/CCT chaperonin can also directly or indirectly participate in the infection and regulation of a variety of viruses, such as hepatitis C virus (HCV), Fowl adenovirus serotype 4 (FAdV-4) and influenza A virus (IAV) (Inoue et al., 2011; Gao et al., 2019; Zhang et al., 2020).