Flavivirus RNA-directed RNA polymerase, thumb domain
Flaviviruses produce a large polyprotein from the ssRNA genome, encoding structural proteins required for virus assembly and non-structural (NS1-5) proteins involved in replication of the viral genome [1,2,3]. This polyprotein is cleaved by viral and ...
Flaviviruses produce a large polyprotein from the ssRNA genome, encoding structural proteins required for virus assembly and non-structural (NS1-5) proteins involved in replication of the viral genome [1,2,3]. This polyprotein is cleaved by viral and cellular proteases to produce mature viral proteins. NS5 is the largest mature viral protein and contains a N-terminal methyltransferase (MTase) domain separated by a short linker from the C-terminal RNA-directed RNA polymerase domain (RdRp) that adopts a characteristic right-handed fingers-palm-thumb fold and possesses a number of short regions and motifs homologous to other RNA-directed RNA polymerases [2,3]. This entry represents the thumb domain of NS5 RdRp. NS5 binds to a the stem loop A (SLA) at the 5' extremity of Flavivirus genome and regulates translation of the viral genome [3].
Flavivirus RNA-directed RNA polymerase, fingers and palm domains
Flaviviruses produce a large polyprotein from the ssRNA genome, encoding structural proteins required for virus assembly and non-structural (NS1-5) proteins involved in replication of the viral genome [1-6]. This polyprotein is cleaved by viral and c ...
Flaviviruses produce a large polyprotein from the ssRNA genome, encoding structural proteins required for virus assembly and non-structural (NS1-5) proteins involved in replication of the viral genome [1-6]. This polyprotein is cleaved by viral and cellular proteases to produce mature viral proteins. NS5 is the largest mature viral protein and contains a N-terminal methyltransferase (MTase) domain separated by a short linker from the C-terminal RNA-directed RNA polymerase domain (RdRp) that adopts a characteristic right-handed fingers-palm-thumb fold and possesses a number of short regions and motifs homologous to other RNA-directed RNA polymerases [2,5,6]. This entry covers the fingers and palm domains of RNA-directed RNA polymerase (RdRp) from Flavivirus NS5. NS5 binds to a the stem loop A (SLA) at the 5' extremity of Flavivirus genome and regulates translation of the viral genome [5,6].
This domain is found at the C-terminal end of NS3 helicase (Non- structural protein 3-helicase, NS3-Hel) found in Flavivirus such as Zika virus (ZIKV) and Dengue virus type 1 (DENV-1). This protein binds RNA and unwinds dsRNA in the 3' to 5' directio ...
This domain is found at the C-terminal end of NS3 helicase (Non- structural protein 3-helicase, NS3-Hel) found in Flavivirus such as Zika virus (ZIKV) and Dengue virus type 1 (DENV-1). This protein binds RNA and unwinds dsRNA in the 3' to 5' direction. It consists of three domains. This entry represent the final domain, which is mostly alpha-helical [1,2]. A highly conserved R residue located in this domain was proven essential for the enzymatic activities of the protein [3].