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Conserved domains on  [gi|2033506524|gb|QUU43712|]
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fusion protein p122 [Southern tomato virus]

Protein Classification

RNA-dependent RNA polymerase family protein( domain architecture ID 1750808)

RNA-dependent RNA polymerase (RdRp) family protein similar to the RdRp catalytic domain of alpha-, beta-, gamma-, delta-coronaviruses, including three highly pathogenic human coronaviruses (CoVs) such as Middle East respiratory syndrome (MERS)-related CoV, Severe acute respiratory syndrome (SARS) CoV, and SARS-CoV-2

EC:  2.7.7.48
Gene Ontology:  GO:0097747
PubMed:  29439438

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
ps-ssRNAv_RdRp-like super family cl40470
conserved catalytic core domain of RNA-dependent RNA polymerase (RdRp) from the positive-sense ...
596-791 5.27e-09

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.


The actual alignment was detected with superfamily member cd01699:

Pssm-ID: 477363 [Multi-domain]  Cd Length: 278  Bit Score: 58.45  E-value: 5.27e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  596 SSDW---MHFWDEVKEAAVCveLDWSKFDRERPSEDLDFMIKVICSCFRPKDEVEAKLLRgygvcmrRALVERRLITDDG 672
Cdd:cd01699     81 SRDWtilANKLRSFSPVAIA--LDYSRFDSSLSPQLLEAEHSIYNALYDDDDELERRNLL-------RSLTNNSLHIGFN 151
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  673 GVIHIDGMVPSGSLWTGWLDTALNILYIKSVLRSI--DILEEEAVPKCAGDDNLTVFSKDPGDEVLEEMRVKLNDY-FRA 749
Cdd:cd01699    152 EVYKVRGGRPSGDPLTSIGNSIINCILVRYAFRKLggKSFFKNVRLLNYGDDCLLSVEKADDKFNLETLAEWLKEYgLTM 231
                          170       180       190       200       210
                   ....*....|....*....|....*....|....*....|....*....|
gi 2033506524  750 GIKKEDFIITRPPFHV----RTFqaVFKEGTD----LSKgtSKIMKKAYW 791
Cdd:cd01699    232 TDEDKVESPFRPLEEVeflkRRF--VLDEGGGwrapLDP--SSILSKLSW 277
 
Name Accession Description Interval E-value
RNA_dep_RNAP cd01699
RNA_dep_RNAP: RNA-dependent RNA polymerase (RdRp) is an essential protein encoded in the ...
596-791 5.27e-09

RNA_dep_RNAP: RNA-dependent RNA polymerase (RdRp) is an essential protein encoded in the genomes of all RNA containing viruses with no DNA stage. RdRp catalyzes synthesis of the RNA strand complementary to a given RNA template. RdRps of many viruses are products of processing of polyproteins. Some RdRps consist of one polypeptide chain, and others are complexes of several subunits. The domain organization and the 3D structure of the catalytic center of a wide range of RdRps, including those with a low overall sequence homology, are conserved. The catalytic center is formed by several motifs containing a number of conserved amino acid residues. This subfamily represents the RNA-dependent RNA polymerases from all positive-strand RNA eukaryotic viruses with no DNA stage.


Pssm-ID: 238843 [Multi-domain]  Cd Length: 278  Bit Score: 58.45  E-value: 5.27e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  596 SSDW---MHFWDEVKEAAVCveLDWSKFDRERPSEDLDFMIKVICSCFRPKDEVEAKLLRgygvcmrRALVERRLITDDG 672
Cdd:cd01699     81 SRDWtilANKLRSFSPVAIA--LDYSRFDSSLSPQLLEAEHSIYNALYDDDDELERRNLL-------RSLTNNSLHIGFN 151
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  673 GVIHIDGMVPSGSLWTGWLDTALNILYIKSVLRSI--DILEEEAVPKCAGDDNLTVFSKDPGDEVLEEMRVKLNDY-FRA 749
Cdd:cd01699    152 EVYKVRGGRPSGDPLTSIGNSIINCILVRYAFRKLggKSFFKNVRLLNYGDDCLLSVEKADDKFNLETLAEWLKEYgLTM 231
                          170       180       190       200       210
                   ....*....|....*....|....*....|....*....|....*....|
gi 2033506524  750 GIKKEDFIITRPPFHV----RTFqaVFKEGTD----LSKgtSKIMKKAYW 791
Cdd:cd01699    232 TDEDKVESPFRPLEEVeflkRRF--VLDEGGGwrapLDP--SSILSKLSW 277
RdRP_1 pfam00680
Viral RNA-dependent RNA polymerase; This family represents the RNA-directed RNA polymerase ...
607-814 1.70e-04

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.


Pssm-ID: 425815  Cd Length: 450  Bit Score: 45.48  E-value: 1.70e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  607 KEAAVCVELDWSKFDRERPSEDLDFMIKVICSCFRPKDEVEAKllrgygvcmrRALVE----RRLITDDGGVIHIDGMVP 682
Cdd:pfam00680  223 RFGDYVYELDYSGFDSSVPPWLIRFAFEILRELLGFPSNVKEW----------RAILElliyTPIALPNGTVFKKTGGLP 292
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  683 SGSLWTGWLDTALNILYIKSVL------RSIDILE--EEAVPKCAGDDNLTVFSKD---PGD---EVLEEMRVKLNDyfr 748
Cdd:pfam00680  293 SGSPFTSIINSIVNYLLILYALlkslenDGPRVCNldKYFDFFTYGDDSLVAVSPDfdpVLDrlsPHLKELGLTITP--- 369
                          170       180       190       200       210       220       230
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 2033506524  749 agiKKEDFIITRPP----FHVRTFQAVfKEGTDLSKGTSKIMKKAYWREFEDEL--RIDQEKGLSHRWEYRF 814
Cdd:pfam00680  370 ---AKKTFPVSRELeevsFLKRTFRKT-PGGYRPPLDRKRILAQLEYIRSKPVPsgQLENIRAYASHHGYEF 437
 
Name Accession Description Interval E-value
RNA_dep_RNAP cd01699
RNA_dep_RNAP: RNA-dependent RNA polymerase (RdRp) is an essential protein encoded in the ...
596-791 5.27e-09

RNA_dep_RNAP: RNA-dependent RNA polymerase (RdRp) is an essential protein encoded in the genomes of all RNA containing viruses with no DNA stage. RdRp catalyzes synthesis of the RNA strand complementary to a given RNA template. RdRps of many viruses are products of processing of polyproteins. Some RdRps consist of one polypeptide chain, and others are complexes of several subunits. The domain organization and the 3D structure of the catalytic center of a wide range of RdRps, including those with a low overall sequence homology, are conserved. The catalytic center is formed by several motifs containing a number of conserved amino acid residues. This subfamily represents the RNA-dependent RNA polymerases from all positive-strand RNA eukaryotic viruses with no DNA stage.


Pssm-ID: 238843 [Multi-domain]  Cd Length: 278  Bit Score: 58.45  E-value: 5.27e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  596 SSDW---MHFWDEVKEAAVCveLDWSKFDRERPSEDLDFMIKVICSCFRPKDEVEAKLLRgygvcmrRALVERRLITDDG 672
Cdd:cd01699     81 SRDWtilANKLRSFSPVAIA--LDYSRFDSSLSPQLLEAEHSIYNALYDDDDELERRNLL-------RSLTNNSLHIGFN 151
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  673 GVIHIDGMVPSGSLWTGWLDTALNILYIKSVLRSI--DILEEEAVPKCAGDDNLTVFSKDPGDEVLEEMRVKLNDY-FRA 749
Cdd:cd01699    152 EVYKVRGGRPSGDPLTSIGNSIINCILVRYAFRKLggKSFFKNVRLLNYGDDCLLSVEKADDKFNLETLAEWLKEYgLTM 231
                          170       180       190       200       210
                   ....*....|....*....|....*....|....*....|....*....|
gi 2033506524  750 GIKKEDFIITRPPFHV----RTFqaVFKEGTD----LSKgtSKIMKKAYW 791
Cdd:cd01699    232 TDEDKVESPFRPLEEVeflkRRF--VLDEGGGwrapLDP--SSILSKLSW 277
ps-ssRNA_Picornaviridae cd23193
catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the family Picornaviridae of ...
598-768 4.52e-07

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the family Picornaviridae of positive-sense single-stranded RNA [(+)ssRNA] viruses; This group contains the catalytic core domain of RdRp of RNA viruses belonging to the family Picornaviridae, order Picornavirales. The Picornaviridae family consists of small, icosahedral viruses with (+)ssRNA genomes. Characteristic features of all members of the family Picornaviridae are three capsid proteins with beta-barrel folding, polyprotein processing by virus-encoded cysteine proteinase(s), and replication by an RdRp with a YGDD sequence motif. The family Picornaviridae comprises 68 genera containing 158 species, but many viruses are presently awaiting classification. The established genera of the family include: Aphthovirus, Avisivirus, Crohivirus, Enterovirus, Teschovirus, Cardiovirus, Erbovirus, Kobuvirus, Hepatovirus, Parechovirus, Aquamavirus, Avihepatovirus, Avisivirus, Cosavirus, Dicipivirus, Fipivirus, Gallivirus, Hunnivirus, Kunsagivirus, Limnipivirus, Megrivirus, Mischivirus, Mosavirus, Oscivirus, Pasivirus, Passerivirus, Rabovirus, Rosavirus, Sakobuvirus, Salivirus, Sapelovirus, Senecavirus, Sicinivirus, and Tremovirus. The Picornaviridae contains many important human and animal pathogens including enteroviruses (such as poliovirus, enterovirus, coxsackievirus, and rhinovirus), cardioviruses (such as encephalomyocarditis virus and Theiler's virus), hepatitis A virus and foot-and-mouth disease virus. Infection with various picornaviruses may cause encephalitis, febrile rash illnesses (hand-foot-and-mouth disease), aseptic meningitis, hepatitis, conjunctivitis, herpangina, myositis and myocarditis, and the common cold. 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.


Pssm-ID: 438043  Cd Length: 345  Bit Score: 53.32  E-value: 4.52e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  598 DWMHFWDEVKEAAVCvELDWSKFDRERPSEDLDFMIKVICSCFrPKDEVEAKLLRGygVCMRRALVERRLITDDGGvihi 677
Cdd:cd23193    123 DWTRLFASLKQDNVY-DLDYSGFDASLSSQLFEAAVEVLAECH-GDPELVLRYLEP--IINSKHVVGDERYTVEGG---- 194
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  678 dgMvPSGSLWTGWLDTALNILYIKSVLRSIDILEEEAVPKCA-GDDNLTVFSKDPGDEVLEEmRVKLNDYFRA-GIKKED 755
Cdd:cd23193    195 --M-PSGCPCTSILNSICNNLVVRYALLETGKFDPDEYYILAyGDDVLVSTDEPIDPSDLAE-FYKKYFGMTVtPADKSS 270
                          170
                   ....*....|...
gi 2033506524  756 FIITRPPFHVRTF 768
Cdd:cd23193    271 DFPESSPIEDVFL 283
Avisivirus_RdRp cd23231
catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the genus Avisivirus of ...
612-755 6.13e-05

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the genus Avisivirus 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 Avisivirus genus within the family Picornaviridae, order Picornavirales. The Avisivirus contains viruses with (+)ssRNA genomes that produce nonenveloped virions. Avisivirus is a picornavirus genus containing three species Avisivirus A, Avisivirus B and Avisivirus C. The name Avisivirus is derived from Avihepato sister-clade. Turkeys serve as natural hosts. 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.


Pssm-ID: 438081  Cd Length: 362  Bit Score: 46.42  E-value: 6.13e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  612 CVELDWSKFDRERPSEDLDFMIKVIcSCFRPKDEVeakllrgygvCMRRAL-----VERrlITDDggVIHIDGMVPSGSL 686
Cdd:cd23231    132 VICLDYSGFDGSLSSELMFHAAQVI-ACFSEKPEA----------IMASAEltigsTER--VSDE--VWYVYGGMPSGSP 196
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 2033506524  687 WTGWLDTALNILYIKSVLRSIDILEEEAVPKCAGDDnlTVFSKDPGDEvLEEMRVKLNDYFRAGIKKED 755
Cdd:cd23231    197 WTTTLNTICNLLMCYTYLLDMGHCWSETFVVAYGDD--VVISANIKHN-LEGIEQWFKTKFGATVTPSD 262
ps-ssRNAv-Picornavirales cd23169
catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the order Picornavirales of ...
596-734 1.20e-04

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the order Picornavirales of positive-sense single-stranded RNA [(+)ssRNA] viruses; This family contains the catalytic core domain of RdRp of Picornavirales, an order of (+)ssRNA viruses. The order Picornavirales comprises viruses that historically are referred to as picorna-like viruses and which are classified into eight virus families: Caliciviridae, Dicistroviridae, Iflaviridae, Marnaviridae, Picornaviridae, Polycipiviridae, Secoviridae, and Solinviviridae. All known genomes of Picornavirales members 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 picornavirus genome is replicated via a negative-sense (-) RNA intermediate by the viral RdRp, named 3Dpol, which uses VPg (the product of 3B) as a primer to initiate the replication process. 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.


Pssm-ID: 438019  Cd Length: 309  Bit Score: 45.28  E-value: 1.20e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  596 SSDWMHFWDEVKEAA-VCVELDWSKFDRERPSEDLDFMIKVICSCFRPKDEVEAKLLRgygVCMRRALVERRLITDDGGV 674
Cdd:cd23169     64 SVEWTRLYRRLLKKGpNIFAGDYSNFDGSLPPDVMEAAFDIINDWYDEYVDDEDERVR---KVLFEELINTIHLVGNLVY 140
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 2033506524  675 IHIDGMvPSGSLWTGWLDTALNILYIKSVLRSI------DILEEEAVPKCAGDDNLTVFSKDPGDE 734
Cdd:cd23169    141 QVHGGN-PSGNPLTTIINSIVNLLYIRYAWLRItgltslSDFKKNVRLVTYGDDVIISVSDEVKDE 205
RdRP_1 pfam00680
Viral RNA-dependent RNA polymerase; This family represents the RNA-directed RNA polymerase ...
607-814 1.70e-04

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.


Pssm-ID: 425815  Cd Length: 450  Bit Score: 45.48  E-value: 1.70e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  607 KEAAVCVELDWSKFDRERPSEDLDFMIKVICSCFRPKDEVEAKllrgygvcmrRALVE----RRLITDDGGVIHIDGMVP 682
Cdd:pfam00680  223 RFGDYVYELDYSGFDSSVPPWLIRFAFEILRELLGFPSNVKEW----------RAILElliyTPIALPNGTVFKKTGGLP 292
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  683 SGSLWTGWLDTALNILYIKSVL------RSIDILE--EEAVPKCAGDDNLTVFSKD---PGD---EVLEEMRVKLNDyfr 748
Cdd:pfam00680  293 SGSPFTSIINSIVNYLLILYALlkslenDGPRVCNldKYFDFFTYGDDSLVAVSPDfdpVLDrlsPHLKELGLTITP--- 369
                          170       180       190       200       210       220       230
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 2033506524  749 agiKKEDFIITRPP----FHVRTFQAVfKEGTDLSKGTSKIMKKAYWREFEDEL--RIDQEKGLSHRWEYRF 814
Cdd:pfam00680  370 ---AKKTFPVSRELeevsFLKRTFRKT-PGGYRPPLDRKRILAQLEYIRSKPVPsgQLENIRAYASHHGYEF 437
RdRP_4 pfam02123
Viral RNA-directed RNA-polymerase; This family includes RNA-dependent RNA polymerase proteins ...
607-746 4.54e-04

Viral RNA-directed RNA-polymerase; This family includes RNA-dependent RNA polymerase proteins (RdRPs) from Luteovirus, Totivirus and Rotavirus.


Pssm-ID: 280316  Cd Length: 465  Bit Score: 43.99  E-value: 4.54e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  607 KEAAVCVELDWSKFDRERPSEDldfMIKVICsCFRPKDEVEAKLLRGYGVCmrraLVERRLITDDGGVIHID--GMVPSG 684
Cdd:pfam02123  294 KRGGVSLMLDYDDFNSQHSTES---MRAVFE-RLRRRLPDEPAEAADWLVC----SMDSMYQLSDGTLLAQRvpGTLKSG 365
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 2033506524  685 SLWTGWLDTALNILYIKSVLRSidiLEEEAVPKCAGDDNLTVFSKDPGD----EVLEEMRVKLNDY 746
Cdd:pfam02123  366 HRATTFINSVLNCAYAELAGAP---WADVPTSIHMGDDVLEGLRTPADAtsllDKYARLGFKVNPS 428
Mischivirus_RdRp cd23227
RNA-dependent RNA polymerase (RdRp) in the genus Mischivirus of positive-sense single-stranded ...
597-742 2.22e-03

RNA-dependent RNA polymerase (RdRp) in the genus Mischivirus of positive-sense single-stranded RNA [(+)ssRNA] viruses, within the family Picornaviridae; This group contains the RdRp of RNA viruses belonging to the Mischivirus genus within the family Picornaviridae, order Picornavirales. The Mischivirus contains viruses with (+)ssRNA genomes that produce nonenveloped virions. Mischivirus is a picornavirus genus containing five species Mischivirus A, Mischivirus B, Mischivirus C, Mischivirus D and the proposed Mischivirus E. The name is derived from the name originally given to the virus, Miniopterus schreibersii picornavirus, which was found in the common bent-wing bat (aka Schreiber's long-fingered bat or Schreiber's bat) in China and is most closely related to the cardioviruses. 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.


Pssm-ID: 438077  Cd Length: 466  Bit Score: 41.86  E-value: 2.22e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  597 SDWMHFWDEVKEAAVCVELDWSKFDRERPSEdldfMIKVICSCFRPK----DEVEAKLLRGYGVCMRRALVERRLitddg 672
Cdd:cd23227    219 WDWTYFAHQLMERQWCYDIDYSNFDSTHGTG----MFELLIDCFFTPengfSPAVAPYLRSLAFSKHAWMDKRYK----- 289
                           90       100       110       120       130       140       150
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|.
gi 2033506524  673 gvihIDGMVPSGSLWTGWLDTALNILYIKSVLR-SIDILEEEAVPKCAGDDNLTVFSkdpgDEVLEEMRVK 742
Cdd:cd23227    290 ----IEGGLPSGCSATSVLNTVMNNIIIRALLSlTYKNFHPEDVLVLAYGDDLLVAS----DYQLDFNRVR 352
ps-ssRNAv_Astroviridae_RdRp cd23172
catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the family Astroviridae of ...
612-760 4.91e-03

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.


Pssm-ID: 438022  Cd Length: 243  Bit Score: 39.76  E-value: 4.91e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  612 CVELDWSKFDRERPSEDLDfMIKVI-CSCFRP-KDEVEAKLLRGYgvcmRRALVERRLITDDGGVIHIDGMVPSGSLWTG 689
Cdd:cd23172     82 FVEFDWTRFDGTIPAELFR-HIRKLrWSFLDPeKTEENRKVYDWY----VHNLLNRYVLLPTGEVTRVTKGNPSGQISTT 156
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033506524  690 --------WLdTALNILYI-KSVLRSIDILEEEAVPKCAGDDNLTVFSKDPGDEV--LEEMRVklnDYFRAGIKKEDFII 758
Cdd:cd23172    157 mdncmvntFL-TAFEFAYVyGPKTGTLKELWDNYDTIVYGDDRLSGYPSLPDPYVerVVDMYK---DVFGMWVKPEKVKV 232

                   ..
gi 2033506524  759 TR 760
Cdd:cd23172    233 SD 234
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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