摘要
Dear Editor,Enterovirus 71(EV71)is the main pathogen of hand,foot,and mouth disease(HFMD),which is a serious public health threat,especially in the Asia-Pacific region(Wu et al.,2013).Due to the lack of effective antivirals for treatment,supportive therapy remains to be the primary measure for severe infections of EV71.EV71 belongs to the genus Enterovirus in the family of Picornavirridae.EV71 encodes a polyprotein that is proteolytically cleaved into four structural proteins and seven nonstructural proteins,i.e.,VP1 to VP4,2A to 2C,and 3A to 3D.Moreover,an alternative encoding strategy of harboring a novel open reading frame encoding a short peptide has been recently reported in gut epithelial cells infected with some enteroviruses(Lulla et al.,2019).Structural proteins play a key role in the packaging and maturation of virus particles,while non-structural proteins are mainly involved in the replication process of virus.Among them,the 3D polymerase(3Dpol)protein functions as an RNA-dependent RNA polymerase(RdRP)that is essential for viral RNA synthesis(Wu et al.,2010).
基金
supported by Hubei Provincial Natural Science Foundation of China(2025AFB822)
National Key Research and Development Program of China(No.2022YFD1800100)
National Natural Science Foundation of China(32100110).
