conserved catalytic core domain of RNA-dependent RNA polymerase (RdRp) from the positive-sense single-stranded RNA [(+)ssRNA] viruses and closely related viruses; This family contains the catalytic core domain of RdRp of RNA viruses which belong to Group IV of the Baltimore classification system, and are a group of related viruses that have positive-sense (+), single-stranded (ss) genomes made of ribonucleic acid (RNA). RdRp (also known as RNA replicase) catalyzes the replication of RNA from an RNA template; specifically, it catalyzes the synthesis of the RNA strand complementary to a given RNA template. The Baltimore Classification is divided into 7 classes, 3 of which include RNA viruses: Group IV (+) RNA viruses, Group III double-stranded (ds) RNA viruses, and Group V negative-sense (-) RNA viruses. Baltimore groups of viruses differ with respect to the nature of their genome (i.e., the nucleic acid form that is packaged into virions) and correspond to distinct strategies of genome replication and expression. (+) viral RNA is similar to mRNA and thus can be immediately translated by the host cell. (+)ssRNA viruses can also produce (+) copies of the genome from (-) strands of an intermediate dsRNA genome. This acts as both a transcription and a replication process since the replicated RNA is also mRNA. RdRps belong to the expansive class of polymerases containing so-called palm catalytic domains along with the accessory fingers and thumb domains. All RdRps also have six conserved structural motifs (A-F), located in its majority in the palm subdomain (A-E motifs) and the F motif is located on the finger subdomain. All these motifs have been shown to be implicated in RdRp fidelity such as processes of correct incorporation and reorganization of nucleotides. In addition to Group IV viruses, this model also includes Picobirnaviruses (PBVs), members of the family Picobirnaviridae of dsRNA viruses (Baltimore classification Group III), which are bi-segmented dsRNA viruses. The phylogenetic tree of the RdRps of RNA viruses (realm Riboviria) showed that picobirnaviruses are embedded in the branch of diverse (+)RNA viruses; sometimes they are collectively referred to as the picornavirus supergroup. RdRps of members of the family Permutatetraviridae, a distinct group of RNA viruses that encompass a circular permutation within the RdRp palm domain, are not included in this model.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568801520   2 RVIIAAFDILIDIAKQCTKYAAEDIHIMKMMVHEIVYPVMAYNGDLIQLFGTNPSGQNLTVIINSLVNSLLLRSAFFTKY 81
Cdd:cd23195   94 QLILAAFKILIDIAAKSGGYSEEDLKIMRGIATDIAYPLVDFNGDLIQFFGSNPSGHPLTVIINSIVNSLYMRYAYYSLY 173

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*
gi 568801520  82 PDK---DFKRECAFLTYGDDVIGTVSGDCSKFTHITYADWLAEHDMKFTMPEKED 133
Cdd:cd23195  174 PEKevpPFRDVVALMTYGDDNIMSVSPGYPWFNHTSIAEFLAKIGIKYTMADKEA 228

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the family Marnaviridae of positive-sense single-stranded RNA [(+)ssRNA] viruses, in the order Picornavirales; This group contains the catalytic core domain of RdRp of RNA viruses belonging to the family Marnaviridae, order Picornavirales. Member viruses have a (+)ssRNA genome. They are mono- or dicistronic, have a polyadenylate tail and have conserved motifs for RNA helicase, RdRp, and structural protein domains. The first RNA virus isolated and characterized that infects a marine protist was Heterosigma akashiwo RNA virus (HaRNAV) in the genus Marnavirus, that infects the toxic bloom-forming Raphidophyte alga, Heterosigma akashiwo. Recently, it has undergone a major taxonomic revision and now includes 20 species within 7 genera, which include Bacillarnavirus, Kusarnavirus, Labyrnavirus, Locarnavirus, Marnavirus, Salisharnavirus, and Sogarnavirus. RdRps catalyze RNA template-dependent formation of phosphodiester bonds between ribonucleotides in the presence of divalent metal ions. The initiation of synthesis occurs at the 3'-end of the template in a VPg-dependent manner, and proceeds in the direction of 5'-3'. The active sites of RdRps are highly conserved in different species of picornaviruses. The RdRp domain displays a right hand with three functional subdomains, called fingers, palm, and thumb. All RdRps contain conserved polymerase motifs (A-G), located in the palm (A-E motifs) and finger (F-G) subdomains. All these motifs have been implicated in RdRp fidelity such as processes of correct incorporation and reorganization of nucleotides.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568801520   2 RVIIAAFDILIDIAKQCTKYAAEDIHIMKMMVHEIVYPVMAYNGDLIQLFGTNPSGQNLTVIINSLVNSLLLRSAFFTKY 81
Cdd:cd23195   94 QLILAAFKILIDIAAKSGGYSEEDLKIMRGIATDIAYPLVDFNGDLIQFFGSNPSGHPLTVIINSIVNSLYMRYAYYSLY 173

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*
gi 568801520  82 PDK---DFKRECAFLTYGDDVIGTVSGDCSKFTHITYADWLAEHDMKFTMPEKED 133
Cdd:cd23195  174 PEKevpPFRDVVALMTYGDDNIMSVSPGYPWFNHTSIAEFLAKIGIKYTMADKEA 228

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the family Marnaviridae of positive-sense single-stranded RNA [(+)ssRNA] viruses, in the order Picornavirales; This group contains the catalytic core domain of RdRp of RNA viruses belonging to the family Marnaviridae, order Picornavirales. Member viruses have a (+)ssRNA genome. They are mono- or dicistronic, have a polyadenylate tail and have conserved motifs for RNA helicase, RdRp, and structural protein domains. The first RNA virus isolated and characterized that infects a marine protist was Heterosigma akashiwo RNA virus (HaRNAV) in the genus Marnavirus, that infects the toxic bloom-forming Raphidophyte alga, Heterosigma akashiwo. Recently, it has undergone a major taxonomic revision and now includes 20 species within 7 genera, which include Bacillarnavirus, Kusarnavirus, Labyrnavirus, Locarnavirus, Marnavirus, Salisharnavirus, and Sogarnavirus. RdRps catalyze RNA template-dependent formation of phosphodiester bonds between ribonucleotides in the presence of divalent metal ions. The initiation of synthesis occurs at the 3'-end of the template in a VPg-dependent manner, and proceeds in the direction of 5'-3'. The active sites of RdRps are highly conserved in different species of picornaviruses. The RdRp domain displays a right hand with three functional subdomains, called fingers, palm, and thumb. All RdRps contain conserved polymerase motifs (A-G), located in the palm (A-E motifs) and finger (F-G) subdomains. All these motifs have been implicated in RdRp fidelity such as processes of correct incorporation and reorganization of nucleotides.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568801520   2 RVIIAAFDILIDIAKQCTKYAAEDIHIMKMMVHEIVYPVMAYNGDLIQLFGTNPSGQNLTVIINSLVNSLLLRSAFFTKY 81
Cdd:cd23195   94 QLILAAFKILIDIAAKSGGYSEEDLKIMRGIATDIAYPLVDFNGDLIQFFGSNPSGHPLTVIINSIVNSLYMRYAYYSLY 173

                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*
gi 568801520  82 PDK---DFKRECAFLTYGDDVIGTVSGDCSKFTHITYADWLAEHDMKFTMPEKED 133
Cdd:cd23195  174 PEKevpPFRDVVALMTYGDDNIMSVSPGYPWFNHTSIAEFLAKIGIKYTMADKEA 228

RNA-dependent RNA polymerase (RdRp) in the family Dicistroviridae of positive-sense single-stranded RNA [(+)ssRNA] viruses, in the order Picornavirales; This group contains the RdRp of RNA viruses belonging to the family Dicistroviridae, order Picornavirales. Dicistroviridae is a family of small non-enveloped viruses with a (+)ssRNA genome of approximately 8-10 kilobases. The family contains 3 genera: Aparavirus, Cripavirus, and Triatovirus. All members infect arthropod hosts with some having devastating economic consequences, such as acute bee paralysis virus, Kashmir bee virus, and Israeli acute paralysis virus in domesticated honeybees, and taura syndrome virus and mud crab virus in the seafood industry. On the contrary, host specificity and other desirable traits make several members of this group amenable to development as biopesticides for insect control, such as Solenopsis invicta virus 1 against fire ants, and triatoma virus against triatomine bugs that vector Chagas disease. Members in the family Dicistroviridae have similarity to viruses in the Picornavirales members (Iflaviridae, Picornaviridae, Marnaviridae and Secoviridae). The genomes of viruses of these taxa encode proteins with helicase, 3C-like protease, and RdRp domains, as well as capsid proteins with related structures, although the genome organizations can differ among viruses. The RdRp domain displays a right hand with three functional subdomains, called fingers, palm, and thumb. All RdRps contain conserved polymerase motifs (A-G), located in the palm (A-E motifs) and finger (F-G) subdomains. All these motifs have been implicated in RdRp fidelity such as processes of correct incorporation and reorganization of nucleotides.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568801520  24 EDIHIMKMMVHEIVYPVMAYNGDLIQLFGTNPSGQNLTVIINSLVNSLLLRSAF------FTKYPDKDFKRECAFLTYGD 97
Cdd:cd23194  119 ENALIRRVLWEDIVNSVHICGGYVYQWTHSQPSGNPLTAIINSIYNSIIMRYVYllltkeAGLMTMSDFNKHVSMVSYGD 198

                         90       100       110
                 ....*....|....*....|....*....|....*..
gi 568801520  98 D-VIGTVSGDCSKFTHITYADWLAEHDMKFTMPEKED 133
Cdd:cd23194  199 DnVINVSDEVSEWFNQLTITEAMAEIGMTYTDETKTG 235

Viral RNA-dependent RNA polymerase; This family represents the RNA-directed RNA polymerase found in many positive strand RNA eukaryotic viruses. Structural studies indicate that these proteins form the "right hand" structure found in all oligonucleotide polymerases, containing thumb, finger and palm domains, and also the additional bridging finger and thumb domains unique to RNA-directed RNA polymerases.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568801520    8 FDILIDIAKQCTKYAaEDIHIMKMMVHEIVY-PVMAYNGDLIQLFGTNPSGQNLTVIINSLVNSLLLRSAFFTKYPDKD- 85
Cdd:pfam00680 245 IRFAFEILRELLGFP-SNVKEWRAILELLIYtPIALPNGTVFKKTGGLPSGSPFTSIINSIVNYLLILYALLKSLENDGp 323

                          90
                  ....*....|....*....
gi 568801520   86 ----FKRECAFLTYGDDVI 100
Cdd:pfam00680 324 rvcnLDKYFDFFTYGDDSL 342

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the genus Rosavirus of positive-sense single-stranded RNA [(+)ssRNA] viruses, within the family Picornaviridae; This group contains the catalytic core domain of the RdRp of RNA viruses belonging to the Rosavirus genus within the family Picornaviridae, order Picornavirales. The Rosavirus contains viruses with (+)ssRNA genomes that produce nonenveloped virions. This genus contains three species Rosavirus A, Rosavirus B and Rosavirus C found in rats. The name rosavirus is derived from rodent stool-associated picornavirus. Viral RNA was detected in fecal samples of humans and rodents [canyon mouse (Peromyscus crinitus), brown rat (Rattus norvegicus), black rat (R. rattus), Sikkim rat (R. andamanensis), chestnut white-bellied rat (Niviventer fulvescens)]. Eight genetic types are distinguished by means of phylogenetic analysis (Rosavirus A: 2 types; Rosavirus B: 2 types; Rosavirus C: 4 types). RdRps catalyze RNA template-dependent formation of phosphodiester bonds between ribonucleotides in the presence of divalent metal ions. The initiation of synthesis occurs at the 3'-end of the template in a VPg-dependent manner, and proceeds in the direction of 5'-3'. The active sites of RdRps are highly conserved in different species of picornaviruses. The RdRp domain displays a right hand with three functional subdomains, called fingers, palm, and thumb. All RdRps contain conserved polymerase motifs (A-G), located in the palm (A-E motifs) and finger (F-G) subdomains. All these motifs have been implicated in RdRp fidelity such as processes of correct incorporation and reorganization of nucleotides.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568801520   7 AFDILIDIAKQCTKyAAEDIhimKMMVHEIVYPVMAYNGDLIQLFGTNPSGQNLTVIINSLVNSLLLRSAFFTKYPDKDf 86
Cdd:cd23221  154 CFDALADLLADFVE-GEEDV---RKYISSLKTSFHHYKGKLWRLDGAMPSGCCGTSVFNSLINAMLLFSAFSQICPDFR- 228

                         90
                 ....*....|....*..
gi 568801520  87 KRECAFLTYGDDV-IGT 102
Cdd:cd23221  229 ASEPLLVAYGDDVlVGT 245

conserved catalytic core domain of RNA-dependent RNA polymerase (RdRp) from the positive-sense single-stranded RNA [(+)ssRNA] viruses and closely related viruses; This family contains the catalytic core domain of RdRp of RNA viruses which belong to Group IV of the Baltimore classification system, and are a group of related viruses that have positive-sense (+), single-stranded (ss) genomes made of ribonucleic acid (RNA). RdRp (also known as RNA replicase) catalyzes the replication of RNA from an RNA template; specifically, it catalyzes the synthesis of the RNA strand complementary to a given RNA template. The Baltimore Classification is divided into 7 classes, 3 of which include RNA viruses: Group IV (+) RNA viruses, Group III double-stranded (ds) RNA viruses, and Group V negative-sense (-) RNA viruses. Baltimore groups of viruses differ with respect to the nature of their genome (i.e., the nucleic acid form that is packaged into virions) and correspond to distinct strategies of genome replication and expression. (+) viral RNA is similar to mRNA and thus can be immediately translated by the host cell. (+)ssRNA viruses can also produce (+) copies of the genome from (-) strands of an intermediate dsRNA genome. This acts as both a transcription and a replication process since the replicated RNA is also mRNA. RdRps belong to the expansive class of polymerases containing so-called palm catalytic domains along with the accessory fingers and thumb domains. All RdRps also have six conserved structural motifs (A-F), located in its majority in the palm subdomain (A-E motifs) and the F motif is located on the finger subdomain. All these motifs have been shown to be implicated in RdRp fidelity such as processes of correct incorporation and reorganization of nucleotides. In addition to Group IV viruses, this model also includes Picobirnaviruses (PBVs), members of the family Picobirnaviridae of dsRNA viruses (Baltimore classification Group III), which are bi-segmented dsRNA viruses. The phylogenetic tree of the RdRps of RNA viruses (realm Riboviria) showed that picobirnaviruses are embedded in the branch of diverse (+)RNA viruses; sometimes they are collectively referred to as the picornavirus supergroup. RdRps of members of the family Permutatetraviridae, a distinct group of RNA viruses that encompass a circular permutation within the RdRp palm domain, are not included in this model.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|.
gi 568801520  54 NPSGQNLTVIINSLVNSLLLRSAFFTKYPDKDFKRECAFLTYGDDVIGTVS 104
Cdd:cd23167   23 QPSGSPNTSADNSLINLLLARLALRKACGRAEFLNSVGILVYGDDSLVSVP 73

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the family Secoviridae of positive-sense single-stranded RNA [(+)ssRNA] viruses, in the order Picornavirales; This group contains the catalytic core domain of RdRp of RNA viruses belonging to the family Secoviridae, order Picornavirales. Members of the family Secoviridae are non-enveloped viruses with mono- or bipartite (RNA-1 and RNA-2) linear (+)ssRNA genomes of 9 to 13.7 kilobases in total. Secoviruses are related to picornaviruses and are classified in the order Picornavirales. The majority of known members infect dicotyledonous plants and many are important plant pathogens (e.g., grapevine fanleaf virus and rice tungro spherical virus). The Secoviridae includes 8 genera (Comovirus, Fabavirus, Nepovirus, Cheravirus, Sadwavirus, Torradovirus, Sequivirus, and Waikavirus) as well as unassigned species (strawberry latent ringspot virus-MEN 454, strawberry mottle virus-Thompson, black raspberry necrosis virus- 1, chocolate lily virus A-KP2, and Dioscorea mosaic associated virus-goiana). RdRps catalyze RNA template-dependent formation of phosphodiester bonds between ribonucleotides in the presence of divalent metal ions. The initiation of synthesis occurs at the 3'-end of the template in a VPg-dependent manner, and proceeds in the direction of 5'-3'. The active sites of RdRps are highly conserved in different species of picornaviruses. The RdRp domain displays a right hand with three functional subdomains, called fingers, palm, and thumb. All RdRps contain conserved polymerase motifs (A-G), located in the palm (A-E motifs) and finger (F-G) subdomains. All these motifs have been implicated in RdRp fidelity such as processes of correct incorporation and reorganization of nucleotides.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 568801520  55 PSGQNLTVIINSLVNSLLLRSAFFTKYPD---KDFKRECAFLTYGDDVIGTVSGDCSKF 110
Cdd:cd23196  145 PSGCALTVIINSIFNEILIRYVYRKVVPRparNNFNKYVRLVVYGDDNLISVKEEIIPY 203

RNA-dependent RNA polymerase (RdRp) in the genus Dicipivirus of positive-sense single-stranded RNA [(+)ssRNA] viruses, within the family Picornaviridae; This group contains the RdRp of RNA viruses belonging to the Dicipivirus genus within the family Picornaviridae, order Picornavirales. The Dicipivirus contains viruses with (+)ssRNA genomes that produce nonenveloped virions. The genus Dicipivirus contains two species, Cadicivirus A and Cadicivirus B. A new dicipivirus has been found in hedgehogs. RdRps catalyze RNA template-dependent formation of phosphodiester bonds between ribonucleotides in the presence of divalent metal ions. The initiation of synthesis occurs at the 3'-end of the template in a VPg-dependent manner, and proceeds in the direction of 5'-3'. The active sites of RdRps are highly conserved in different species of picornaviruses. The RdRp domain displays a right hand with three functional subdomains, called fingers, palm, and thumb. All RdRps contain conserved polymerase motifs (A-G), located in the palm (A-E motifs) and finger (F-G) subdomains. All these motifs have been implicated in RdRp fidelity such as processes of correct incorporation and reorganization of nucleotides.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568801520   7 AFDILIDIAkqCTKYAAEDIhiMKMMVHEIVYPVMAYNGDLIQLFGTNPSGQNLTVIINSLVNSLLLRSAFFTKYPDKDf 86
Cdd:cd23222  232 SFDALADLL--CEFVENEDD--VRRYISNIKNSYHAYDGNLYLIEGAMPSGCAGTSVFNCLINAMLCFSCFMDLEPEMD- 306

                         90       100
                 ....*....|....*....|
gi 568801520  87 KRECAFLTYGDDVIgtVSGD 106
Cdd:cd23222  307 PFEPLLIAYGDDIL--VSSD 324

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the family Astroviridae of positive-sense single-stranded RNA [(+)ssRNA] viruses; This group contains the catalytic core domain of RdRp of RNA viruses belonging to the family Astroviridae, order, Stellavirales. Astrovirus has a non-segmented, (+)ssRNA genome within a non-enveloped icosahedral capsid. The family Astroviridae comprises two genera, Mamastrovirus, which infect mammals, and Avastrovirus, which infect birds. Astroviruses have been isolated from stools from a wide variety of mammals and birds. Human astroviruses have been shown to be an important cause of gastroenteritis in young children. Duck astrovirus causes an often-fatal hepatitis in ducklings. Astroviruses infecting turkeys, guinea fowl and chickens affect multiple organs, including the kidney and thymus. The RdRp domain displays a right hand with three functional subdomains, called fingers, palm, and thumb. All RdRps contain conserved polymerase motifs (A-G), located in the palm (A-E motifs) and finger (F-G) subdomains. All these motifs have been implicated in RdRp fidelity such as processes of correct incorporation and reorganization of nucleotides.

                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 568801520  44 NGDLIQLFGTNPSGQNLTVIINSLVNSLLlrSAFFTKY-------PDKDFKRECAFLTYGDDVIGTVS 104
Cdd:cd23172  138 TGEVTRVTKGNPSGQISTTMDNCMVNTFL--TAFEFAYvygpktgTLKELWDNYDTIVYGDDRLSGYP 203

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the genus Rabovirus of positive-sense single-stranded RNA [(+)ssRNA] viruses, within the family Picornaviridae; This group contains the catalytic core domain of the RdRp of RNA viruses belonging to the Rabovirus genus within the family Picornaviridae, order Picornavirales. The Rabovirus contains viruses with (+)ssRNA genomes that produce nonenveloped virions. The genus Rabovirus consists of four species Rabovirus A, Rabovirus B, Rabovirus C, and Rabovirus D. Viral RNA of this genus was detected in feces of Norway rats (Rattus norvegicus) and mice (Mus musculus) in USA and Germany, in intestinal contents of Himalayan marmots (Marmota himalayana), and in tissue samples of Gairdner's shrewmice (Mus pahari). RdRps catalyze RNA template-dependent formation of phosphodiester bonds between ribonucleotides in the presence of divalent metal ions. The initiation of synthesis occurs at the 3'-end of the template in a VPg-dependent manner, and proceeds in the direction of 5'-3'. The active sites of RdRps are highly conserved in different species of picornaviruses. The RdRp domain displays a right hand with three functional subdomains, called fingers, palm, and thumb. All RdRps contain conserved polymerase motifs (A-G), located in the palm (A-E motifs) and finger (F-G) subdomains. All these motifs have been implicated in RdRp fidelity such as processes of correct incorporation and reorganization of nucleotides.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568801520  33 VHEIVYPVMAYNGDLIQLFGTNPSGQNLTVIINSLVNSLLLRSAFFTKYPDKDFKrECAFLTYGDDVIGTvsgdcskFTH 112
Cdd:cd23230  165 IDHIIRSRHIYKGIEYDVEGGMPSGCSGTSIFNSIINNIIIMTLVLDAYKGIDLE-QLKIIAYGDDVIVT-------YPY 236

                         90       100
                 ....*....|....*....|...
gi 568801520 113 ITYADWLAE----HDMKFTMPEK 131
Cdd:cd23230  237 PLDAALLADcgkkYGLKMTPPDK 259

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the genus Sapelovirus of positive-sense single-stranded RNA [(+)ssRNA] viruses, within the family Picornaviridae; This group contains the catalytic core domain of the RdRp of RNA viruses belonging to the Sapelovirus genus within the family Picornaviridae, order Picornavirales. Member viruses have a (+)ssRNA genome. Viruses in Sapelovirus are non-enveloped, with icosahedral, spherical, and round geometries, and T=pseudo3 symmetry. Sapelovirus, formerly known as porcine enterovirus (PEV)-8, is known to infect pigs asymptomatically but can cause reproductive failure and severe neurologic, enteric, or respiratory signs. Sapelovirus infections have been reported worldwide in pigs. The genus Sapelovirus contains three species, with a unique genome organization: Sapelovirus A, also known as porcine sapelovirus (PSV); Sapelovirus B as simian sapelovirus; and Avian sapelovirus represented by duck picornavirus. RdRps catalyze RNA template-dependent formation of phosphodiester bonds between ribonucleotides in the presence of divalent metal ions. The initiation of synthesis occurs at the 3'-end of the template in a VPg-dependent manner, and proceeds in the direction of 5'-3'. The active sites of RdRps are highly conserved in different species of picornaviruses. The RdRp domain displays a right hand with three functional subdomains, called fingers, palm, and thumb. All RdRps contain conserved polymerase motifs (A-G), located in the palm (A-E motifs) and finger (F-G) subdomains. All these motifs have been implicated in RdRp fidelity such as processes of correct incorporation and reorganization of nucleotides.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568801520  21 YAAEDIhimkMMVHEIVYPVMAYNGDLIQLFGTNPSGQNLTVIINSLVNSLLLRSAFFTKYPDKDFKrECAFLTYGDDVI 100
Cdd:cd23218  161 YSERDI----VLIDHLCYSNHIFKNEGYKVAGGMPSGCSGTSIFNSIINNIVVRTLVLLVYKGINLD-ELRILCYGDDLL 235

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the genus Fipivirus of positive-sense single-stranded RNA [(+)ssRNA] viruses, within the family Picornaviridae; This group contains the catalytic core domain of the RdRp of RNA viruses belonging to the Fipivirus genus within the family Picornaviridae, order Picornavirales. The Fipivirus contains viruses with (+)ssRNA genomes that produce nonenveloped virions. This genus contains five species: Fipivirus A (Wuhan sharpbelly picornavirus 2), Fipivirus B (Wuhan sharpbelly picornavirus 3), Fipivirus C (Wenling crossorhombus picornavirus), Fipivirus D (Wenling jack mackerels picornavirus) and Fipivirus E (Wenling banjofish picornavirus 1). All contain viruses from fish. RdRps catalyze RNA template-dependent formation of phosphodiester bonds between ribonucleotides in the presence of divalent metal ions. The initiation of synthesis occurs at the 3'-end of the template in a VPg-dependent manner, and proceeds in the direction of 5'-3'. The active sites of RdRps are highly conserved in different species of picornaviruses. The RdRp domain displays a right hand with three functional subdomains, called fingers, palm, and thumb. All RdRps contain conserved polymerase motifs (A-G), located in the palm (A-E motifs) and finger (F-G) subdomains. All these motifs have been implicated in RdRp fidelity such as processes of correct incorporation and reorganization of nucleotides.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568801520   3 VIIAAFDILIDIAK---QCTKYAAEDIHIMKMMVHEIVYPVmayngdliqlFGTNPSGQNLTVIINSLVNSLLLRSAF-- 77
Cdd:cd23229  164 VITGAVRILGYIAGlpdGQSYRLAEFVYDVKQIVGKYLYTT----------VGPLPSGCPSTSIIGSLCNVLMLLYTLsh 233

                         90       100
                 ....*....|....*....|....*....
gi 568801520  78 FTKYPDKDFKRECAFLTYGDDVIGTVSGD 106
Cdd:cd23229  234 ATGQRYSAFRDWMHVVTYGDDVLVFVHPE 262

RNA-dependent RNA polymerase (RdRp) in the genus Hepatovirus of positive-sense single-stranded RNA [(+)ssRNA] viruses, within the family Picornaviridae; This group contains the RdRp of RNA viruses belonging to the Hepatovirus genus within the family Picornaviridae, order Picornavirales. Hepatoviruses are 27- to 32-nm, nonenveloped, icosahedral viruses with a (+)ssRNA linear genome of approximately 7.5-kb. The Hepatovirus genus has nine species, Hepatovirus A-I, of which Hepatovirus A is responsible for a self-limiting viral hepatitis in human beings and may be transmitted by the fecal-oral route during acute infection or by the ingestion of uncooked contaminated shellfish. RdRps are multi-domain proteins that play a pivotal role in enterovirus replication. RdRps catalyze RNA template-dependent formation of phosphodiester bonds between ribonucleotides in the presence of divalent metal ions. The initiation of synthesis occurs at the 3'-end of the template in a VPg-dependent manner, and proceeds in the direction of 5'-3'. The active sites of RdRps are highly conserved in different species of hepatoviruses. The RdRp domain displays a right hand with three functional subdomains, called fingers, palm, and thumb. All RdRps contain conserved polymerase motifs (A-G), located in the palm (A-E motifs) and finger (F-G) subdomains. All these motifs have been implicated in RdRp fidelity such as processes of correct incorporation and reorganization of nucleotides.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 568801520  27 HIMKMMVHEIVYPVMAYNGDLIQLFGTNPSGQNLTVIINSLVNSLLLRSAF---FTKYPdKDFKRECAFLTYGDDVIGTV 103
Cdd:cd23215  248 HQGQALINTIIYSKHLLYNLCYHVCGSMPSGSPCTSLLNSIVNNVNLYYVFskiFKKSP-VFFYDAVKFLCYGDDVLIVF 326

                 ...
gi 568801520 104 SGD 106
Cdd:cd23215  327 SRD 329

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the genus Mosavirus of positive-sense single-stranded RNA [(+)ssRNA] viruses, within the family Picornaviridae; This group contains the catalytic core domain of the RdRp of RNA viruses belonging to the Mosavirus genus within the family Picornaviridae, order Picornavirales. The Mosavirus contains viruses with (+)ssRNA genomes that produce nonenveloped virions. This genus includes two species: Mosavirus A, which found in the feces of a canyon mouse (Peromyscus crinitus), and Mosavirus B, which contains marmot mosavirus. Mosavirus stands for mouse stool-associated picornavirus. RdRps catalyze RNA template-dependent formation of phosphodiester bonds between ribonucleotides in the presence of divalent metal ions. The initiation of synthesis occurs at the 3'-end of the template in a VPg-dependent manner and proceeds in the direction of 5'-3'. The active sites of RdRps are highly conserved in different species of picornaviruses. The RdRp domain displays a right hand with three functional subdomains, called fingers, palm, and thumb. All RdRps contain conserved polymerase motifs (A-G), located in the palm (A-E motifs) and finger (F-G) subdomains. All these motifs have been implicated in RdRp fidelity such as processes of correct incorporation and reorganization of nucleotides.

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gi 568801520  43 YNGDLIQLFGTNPSGQNLTVIINSLVNSLLLRSAFFTKYPDK--DFKReCAFLTYGDDVI 100
Cdd:cd23225  192 YEGKHFRIRGGLPSGCPCTSILNTVINNIIVRAAILGAYQIDtvDFQK-FRMLAYGDDVV 250