id author title date pages extension mime words sentences flesch summary cache txt cord-331802-wo462anq Xia, Hongjie Human Enterovirus Nonstructural Protein 2C(ATPase) Functions as Both an RNA Helicase and ATP-Independent RNA Chaperone 2015-07-28 .txt text/plain 9410 440 50 Herein, we report that the nonstructural protein 2C(ATPase) of enterovirus 71 (EV71), which is the major causative pathogen of hand-foot-and-mouth disease and has been regarded as the most important neurotropic enterovirus after poliovirus eradication, functions not only as an RNA helicase that 3′-to-5′ unwinds RNA helices in an adenosine triphosphate (ATP)-dependent manner, but also as an RNA chaperone that destabilizes helices bidirectionally and facilitates strand annealing and complex RNA structure formation independently of ATP. Herein, we report that although bacterially expressed EV71 2C ATPase did not exhibit any RNA remodeling activity, eukaryotically expressed EV71 2C ATPase functions not only as an RNA helicase that unwinds RNA helices from 3 0 to 5 0 in an ATP-dependent manner but also as an RNA chaperone that destabilizes helices from either direction and facilitates strand annealing and complex RNA structure formation independently of ATP. ./cache/cord-331802-wo462anq.txt ./txt/cord-331802-wo462anq.txt