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Conserved domains on  [gi|884294229|gb|AKQ21950|]
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NS5B, partial [Hepacivirus hominis]

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 ...
1-134 8.49e-97

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 cd23202:

Pssm-ID: 477363  Cd Length: 518  Bit Score: 287.52  E-value: 8.49e-97
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 884294229   1 YSPQQRVERLLKMWTSKKTPLGFSYDTRCFDSTVTEQDIRVEEEIYQCCNLEPEARKVISSLTERLYCGGPMVNSKGAQC 80
Cdd:cd23202  182 YSPAQRVEFLLKMWRSKKTPMGFSYDTRCFDSTVTERDIRTEESIYQCCDLDPEARKAIRSLTERLYVGGPMTNSKGQSC 261
                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....
gi 884294229  81 GYRRCRASGVLPTSFGNTITCYIKATAAAKAAGLRNPDFLVCGDDLVVVAESDG 134
Cdd:cd23202  262 GYRRCRASGVFTTSSGNTLTCYLKASAACRAAGLKDPTMLVCGDDLVVIAESAG 315
 
Name Accession Description Interval E-value
Hepacivirus_RdRp cd23202
RNA-dependent RNA polymerase (RdRp) in the genus Hepacivirus, within the family Flaviviridae ...
1-134 8.49e-97

RNA-dependent RNA polymerase (RdRp) in the genus Hepacivirus, within the family Flaviviridae of positive-sense single-stranded RNA (+ssRNA) viruses; This group contains the RdRp of RNA viruses belonging to the Hepacivirus genus within the family Flaviviridae, order Amarillovirales. The genus Hepacivirus includes hepatitis C virus, a major human pathogen causing progressive liver disease, and several other viruses of unknown pathogenicity that infect horses, rodents, bats, cows and primates. Infections are typically persistent and target the liver. Virions of Hepacivirus have a single, small, basic capsid (C) protein and two envelope proteins. They contain a single, long ORF flanked by 5'- and 3'-terminal non-coding regions, which form specific secondary structures required for genome replication and translation. 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: 438052  Cd Length: 518  Bit Score: 287.52  E-value: 8.49e-97
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 884294229   1 YSPQQRVERLLKMWTSKKTPLGFSYDTRCFDSTVTEQDIRVEEEIYQCCNLEPEARKVISSLTERLYCGGPMVNSKGAQC 80
Cdd:cd23202  182 YSPAQRVEFLLKMWRSKKTPMGFSYDTRCFDSTVTERDIRTEESIYQCCDLDPEARKAIRSLTERLYVGGPMTNSKGQSC 261
                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....
gi 884294229  81 GYRRCRASGVLPTSFGNTITCYIKATAAAKAAGLRNPDFLVCGDDLVVVAESDG 134
Cdd:cd23202  262 GYRRCRASGVFTTSSGNTLTCYLKASAACRAAGLKDPTMLVCGDDLVVIAESAG 315
RdRP_3 pfam00998
Viral RNA dependent RNA polymerase; This family includes viral RNA dependent RNA polymerase ...
1-134 3.08e-54

Viral RNA dependent RNA polymerase; This family includes viral RNA dependent RNA polymerase enzymes from hepatitis C virus and various plant viruses.


Pssm-ID: 395794 [Multi-domain]  Cd Length: 486  Bit Score: 176.66  E-value: 3.08e-54
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 884294229    1 YSPQQRVERLLKMWTSKKTPLGFSYDTRCFDSTVTEQDIRVEEEIYQCCNLEPEarKVISSLTERLYCGGPMVNSKG-AQ 79
Cdd:pfam00998 183 YTPEQRGEILLKKWDSFKKPVAIGLDASRFDQHVSVEALRFEHSIYLAAFLGPE--ELIRLLTWQLYNGGPMYASDGqIK 260
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 884294229   80 CGYRRCRASGVLPTSFGNTITCYIKATAAAKAAGlRNPDFLVCGDDLVVVAESDG 134
Cdd:pfam00998 261 YGVRGCRMSGDMNTSLGNCLLMCLKVHAACKALG-IDARLLNNGDDCVVICESAD 314
 
Name Accession Description Interval E-value
Hepacivirus_RdRp cd23202
RNA-dependent RNA polymerase (RdRp) in the genus Hepacivirus, within the family Flaviviridae ...
1-134 8.49e-97

RNA-dependent RNA polymerase (RdRp) in the genus Hepacivirus, within the family Flaviviridae of positive-sense single-stranded RNA (+ssRNA) viruses; This group contains the RdRp of RNA viruses belonging to the Hepacivirus genus within the family Flaviviridae, order Amarillovirales. The genus Hepacivirus includes hepatitis C virus, a major human pathogen causing progressive liver disease, and several other viruses of unknown pathogenicity that infect horses, rodents, bats, cows and primates. Infections are typically persistent and target the liver. Virions of Hepacivirus have a single, small, basic capsid (C) protein and two envelope proteins. They contain a single, long ORF flanked by 5'- and 3'-terminal non-coding regions, which form specific secondary structures required for genome replication and translation. 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: 438052  Cd Length: 518  Bit Score: 287.52  E-value: 8.49e-97
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 884294229   1 YSPQQRVERLLKMWTSKKTPLGFSYDTRCFDSTVTEQDIRVEEEIYQCCNLEPEARKVISSLTERLYCGGPMVNSKGAQC 80
Cdd:cd23202  182 YSPAQRVEFLLKMWRSKKTPMGFSYDTRCFDSTVTERDIRTEESIYQCCDLDPEARKAIRSLTERLYVGGPMTNSKGQSC 261
                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....
gi 884294229  81 GYRRCRASGVLPTSFGNTITCYIKATAAAKAAGLRNPDFLVCGDDLVVVAESDG 134
Cdd:cd23202  262 GYRRCRASGVFTTSSGNTLTCYLKASAACRAAGLKDPTMLVCGDDLVVIAESAG 315
ps-ssRNAv_Flaviviridae_RdRp cd23178
catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the family Flaviviridae of ...
1-134 3.18e-60

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the family Flaviviridae of positive-sense single-stranded RNA (+ssRNA) viruses; This group contains the catalytic core domain of RdRp of RNA viruses belonging to the family Flaviviridae, order Amarillovirales. Flaviviridae, is a family of small, enveloped viruses with RNA genomes of 9-13 kb. Most infect mammals and birds. Many flaviviruses are host-specific and pathogenic, such as hepatitis C virus in the genus Hepacivirus. The majority of known members in the genus Flavivirus are arthropod borne, and many are important human and veterinary pathogens (e.g., yellow fever virus, dengue virus). Virions are typically spherical in shape with a lipid envelope. Virions have a single, small, basic capsid (C) protein and two (genera Flavivirus, Hepacivirus and Pegivirus) or three (genus Pestivirus) envelope proteins. They contain a single, long ORF flanked by 5'- and 3'-terminal non-coding regions, which form specific secondary structures required for genome replication and translation. Translational initiation of genomic RNA is cap dependent in the case of members of the genus Flavivirus. 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: 438028  Cd Length: 284  Bit Score: 186.57  E-value: 3.18e-60
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 884294229   1 YSPQQRVERLLKMWTSKKTPLGFSYDTRCFDSTVTEQDIRVEEEIYQCCNLePEARKVISSLTERLYCGGPMVNSKGAQC 80
Cdd:cd23178   62 YSPNQRVEILRKAWKSKKGPMAYSYDTRCFDSTVTEDDIQVEEEIYQACSL-KEARQAIVSITERLYVEGPMVNSDGQIC 140
                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....
gi 884294229  81 GYRRCRASGVLPTSFGNTITCYIKATAAAKAAGLRNPDFLVCGDDLVVVAESDG 134
Cdd:cd23178  141 GRRRCRASGVLTTSAGNT*TCYLK*LAACREAGIRLPTMLVCGDDCVVICESDG 194
RdRP_3 pfam00998
Viral RNA dependent RNA polymerase; This family includes viral RNA dependent RNA polymerase ...
1-134 3.08e-54

Viral RNA dependent RNA polymerase; This family includes viral RNA dependent RNA polymerase enzymes from hepatitis C virus and various plant viruses.


Pssm-ID: 395794 [Multi-domain]  Cd Length: 486  Bit Score: 176.66  E-value: 3.08e-54
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 884294229    1 YSPQQRVERLLKMWTSKKTPLGFSYDTRCFDSTVTEQDIRVEEEIYQCCNLEPEarKVISSLTERLYCGGPMVNSKG-AQ 79
Cdd:pfam00998 183 YTPEQRGEILLKKWDSFKKPVAIGLDASRFDQHVSVEALRFEHSIYLAAFLGPE--ELIRLLTWQLYNGGPMYASDGqIK 260
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 884294229   80 CGYRRCRASGVLPTSFGNTITCYIKATAAAKAAGlRNPDFLVCGDDLVVVAESDG 134
Cdd:pfam00998 261 YGVRGCRMSGDMNTSLGNCLLMCLKVHAACKALG-IDARLLNNGDDCVVICESAD 314
Pegivirus_RdRp cd23203
RNA-dependent RNA polymerase (RdRp) in the genus Pegivirus, within the family Flaviviridae of ...
1-134 3.61e-49

RNA-dependent RNA polymerase (RdRp) in the genus Pegivirus, within the family Flaviviridae of positive-sense single-stranded RNA (+ssRNA) viruses; This group contains the RdRp of RNA viruses belonging to the Pegivirus genus within the family Flaviviridae, order Amarillovirales. Members of the Pegivirus genus are widely distributed in a range of mammalian species, in which they cause persistent infections. To date, they have not been clearly associated with disease. Virions of Pegivirus have a single, small, basic capsid (C) protein and two envelope proteins. They contain a single, long ORF flanked by 5'- and 3'-terminal non-coding regions, which form specific secondary structures required for genome replication and translation. 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: 438053  Cd Length: 476  Bit Score: 163.20  E-value: 3.61e-49
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 884294229   1 YSPQQRVERLLKMWTSKKTPLGFSYDTRCFDSTVTEQDIRVEEEIYQCCNLEPEARKVISslteRLYCGGPMVNSKGAQC 80
Cdd:cd23203  185 YTPNQRVKVLVDMWKSKRHPCAITVDATCFDSSITEEDVARETEIYAAASDDPELVRALG----KYYAEGPMVNPEGVPV 260
                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....
gi 884294229  81 GYRRCRASGVLPTSFGNTITCYIKATAAAKAAGLRNPDFLVCGDDLVVVAESDG 134
Cdd:cd23203  261 GERRCRASGVLTTSSSNSITCYLKVKAACRKAGLKNPSFLIHGDDCLIICERPE 314
RNA_dep_RNAP cd01699
RNA_dep_RNAP: RNA-dependent RNA polymerase (RdRp) is an essential protein encoded in the ...
1-133 4.16e-20

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: 82.72  E-value: 4.16e-20
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 884294229   1 YSPQQR-VERLLKMWTSKKtPLGFSYDTRCFDSTVTEQDIRVEEEIYQCC---NLEPEARKVISSLTERLYcggPMVNSK 76
Cdd:cd01699   77 INPYSRdWTILANKLRSFS-PVAIALDYSRFDSSLSPQLLEAEHSIYNALyddDDELERRNLLRSLTNNSL---HIGFNE 152
                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 884294229  77 gaQCGYRRCRASGVLPTSFGNTITCYIK----ATAAAKAAGLRNPDFLVCGDDLVVVAESD 133
Cdd:cd01699  153 --VYKVRGGRPSGDPLTSIGNSIINCILvryaFRKLGGKSFFKNVRLLNYGDDCLLSVEKA 211
ps_ssRNAv_Tolivirales_RdRp cd23179
catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the order Toliovirales of ...
1-133 1.94e-11

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the order Toliovirales of positive-sense single-stranded RNA (+ssRNA) viruses; This family contains the catalytic core domain of RdRp of Tolivirales, an order of (+)ssRNA viruses which infect insects and plants. The virions are non-enveloped, spherical, and have an icosahedral capsid. The name Tolivirales, is derived from "tombusvirus-like" with the suffix -virales indicating a virus order. This order includes two families: Carmotetraviridae and Tombusviridae. 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: 438029  Cd Length: 227  Bit Score: 59.07  E-value: 1.94e-11
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 884294229   1 YSPQQRVERLLKMWTSKKTPLGFSYDTRCFDSTVTEQDIRVEEEIY-QCCNLEPEARKVIsSLTERLYCggpmVNSKGAQ 79
Cdd:cd23179   64 LNPRQRANLIRRKWDEFDDPVVFSLDASRFDAHVSVELLRLEHSVYlACYPGDPELRKLL-KWQLVNKG----RTSNGVK 138
                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....
gi 884294229  80 CGYRRCRASGVLPTSFGNTITCYIKATAAAKAAGLRNpDFLVCGDDLVVVAESD 133
Cdd:cd23179  139 YKTRGGRMSGDMNTGLGNCLIMLAMVYAVLRELGIKY-DLLVDGDDALVFVERE 191
Betanecrovirus_RdRp cd23244
RNA-dependent RNA polymerase (RdRp) in the genus Betanecrosvirus of positive-sense ...
2-132 9.12e-04

RNA-dependent RNA polymerase (RdRp) in the genus Betanecrosvirus of positive-sense single-stranded RNA [(+)ssRNA] viruses, within the Procedovirinae subfamily; This group contains the RdRp of RNA viruses belonging to the Betanecrosvirus genus within the subfamily Procedovirinae, family Tombusviridae, order Tolivirales. In the Betanecrosvirus genus plants serve as natural hosts, and transmission routes are mechanical, seed borne, and by contact. There are three species in this genus: Beet black scorch virus, Leek white stripe virus, and Tobacco necrosis virus D. Viral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription, using the premature termination model of subgenomic RNA transcription is the method of transcription. The virus exits the host cell by tubule-guided viral movement. 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: 438094  Cd Length: 500  Bit Score: 37.96  E-value: 9.12e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 884294229   2 SPQQRVERLLKMWTSKKTPLGFSYDTRCFDSTVTEQDIRVEEEIYqcCNLEPEA-RKVISSLTerlycgGPMVNSKG-AQ 79
Cdd:cd23244  183 NADQAGMEMKAMWDSFDDPVGIGMDASRFDQHISKEALEFEHKMW--LSMFPGSdRKELARLL------GMQIHNRGlAR 254
                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 884294229  80 C--GYRR-----CRASGVLPTSFGNtitCYIKATAA---AKAAGLRNPDFLVCGDDLVVVAES 132
Cdd:cd23244  255 CpdGEIRytvegCRMSGDMNTSSGN---CYIMCATVhnwCSRLGVKHFRLANNGDDCMLVVER 314
Pestivirus_RdRp cd23201
catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the genus Pestivirus, within ...
12-99 1.46e-03

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the genus Pestivirus, within the family Flaviviridae of positive-sense single-stranded RNA (+ssRNA) viruses; This group contains the catalytic core domain of the RdRp of RNA viruses belonging to the Pestivirus genus within the family Flaviviridae, order Amarillovirales. Members of the genus Pestivirus infect pigs and ruminants, including cattle, sheep, goats and wild ruminants, and are transmitted through contact with infected secretions (respiratory droplets, urine or feces). Infections may be subclinical or cause enteric, hemorrhagic or wasting diseases, including those by the economically important bovine viral diarrhea virus and classical swine fever virus. Virions of Pestivirus have a single, small, basic capsid (C) protein and three envelope proteins. They contain a single, long ORF flanked by 5'- and 3'-terminal non-coding regions, which form specific secondary structures required for genome replication and translation. 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: 438051  Cd Length: 579  Bit Score: 37.31  E-value: 1.46e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 884294229  12 KMWTSKKTPLGFSYDTRCFDSTVTEQDIRVEEEIyQCCNLEPEARKVISSLTERLyCGGPMVNSKGaQCGYRRC-RASGV 90
Cdd:cd23201  235 KEWDQFQEPVAVSFDTKAWDTQVTSKDLRLIGEI-QKYYYKKKWHKFIDTLTEHM-VEVPVITADG-EVYIRKGqRGSGQ 311

                 ....*....
gi 884294229  91 LPTSFGNTI 99
Cdd:cd23201  312 PDTSAGNSM 320
Alphanecrovirus_RdRp cd23237
catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the genus Alphanecrovirus of ...
1-131 2.82e-03

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the genus Alphanecrovirus of positive-sense single-stranded RNA [(+)ssRNA] viruses, within the Procedovirinae subfamily; This group contains the catalytic core domain of RdRp of RNA viruses belonging to the Alphanecrovirus genus within the subfamily Procedovirinae, family Tombusviridae, order Tolivirales. Alphanecroviruses are non-enveloped, with icosahedral and spherical geometries, and T=3 symmetry, and a diameter of around 28 nm. Their genomes are linear, around 4 kb in length. In the Alphanecrovirus genus plants serve as natural hosts. There are 4 species in this genus: Olive latent virus 1, Olive mild mosaic virus, Potato necrosis virus, and Tobacco necrosis virus A. 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: 438087  Cd Length: 439  Bit Score: 36.55  E-value: 2.82e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 884294229   1 YSPQQRVERLLKMWTSKKTPLGFSYDTRCFDSTVTEQDIRVEEEIYqcCNLEPEARKVISSLTERLYCGGPMVNSKGAqC 80
Cdd:cd23237  141 FTLEQQGEIMRSKWKKYVNPVAVGLDASRFDQHVSVEALQYEHEFY--LRDYPNDKQLKWLLKQQLCNIGTAFASDGI-I 217
                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|...
gi 884294229  81 GYRR--CRASGVLPTSFGNTITCYIKATAAAKAAGLrNPDFLVCGDDLVVVAE 131
Cdd:cd23237  218 KYKKegCRMSGDMNTSLGNCILMCAMVYGLKEHLGI-NLSLANNGDDCVIVCE 269
ps-ssRNAv_RdRp-like cd23167
conserved catalytic core domain of RNA-dependent RNA polymerase (RdRp) from the positive-sense ...
85-131 5.32e-03

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.


Pssm-ID: 438017 [Multi-domain]  Cd Length: 73  Bit Score: 33.47  E-value: 5.32e-03
                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|..
gi 884294229  85 CRASGVLPTSFGNT-----ITCYIKATAAAKAAGLRNPDFLVCGDDLVVVAE 131
Cdd:cd23167   22 GQPSGSPNTSADNSlinllLARLALRKACGRAEFLNSVGILVYGDDSLVSVP 73
Tombusvirus-like_RdRp cd23236
RNA-dependent RNA polymerase (RdRp) in the genus Tombusvirus of positive-sense single-stranded ...
14-132 6.69e-03

RNA-dependent RNA polymerase (RdRp) in the genus Tombusvirus of positive-sense single-stranded RNA [(+)ssRNA] viruses, within Procedovirinae subfamily; and related RdRps; This group contains the RdRp of RNA viruses belonging to the Tombusvirus genus within the subfamily Procedovirinae, family Tombusviridae, order Tolivirales. Tombusvirus is a genus of plant viruses. There are 17 species in the Tombusvirus genus: Artichoke mottled crinkle virus, Carnation Italian ringspot virus, Cucumber Bulgarian virus, Cucumber necrosis virus, Cymbidium ringspot virus, Eggplant mottled crinkle virus, Grapevine Algerian latent virus, Havel River virus, Lato River virus, Limonium flower distortion virus, Moroccan pepper virus, Neckar River virus, Pelargonium leaf curl virus, Pelargonium necrotic spot virus, Petunia asteroid mosaic virus, Sikte waterborne virus, and Tomato bushy stunt virus. Symptoms associated with this genus include mosaic. The name of the genus comes from Tomato bushy stunt virus. 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: 438086 [Multi-domain]  Cd Length: 474  Bit Score: 35.38  E-value: 6.69e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 884294229  14 WTSKKTPLGFSYDTRCFDSTVTEQDIRVEEEIYQCcnLEPeARKVISSLTE-RLYCGGPMVNSKGAqCGYRR--CRASGV 90
Cdd:cd23236  194 WDRFDKPVAIGLDASRFDQHCSVEALQFEHSFYRA--MYP-GNKLLSKLLEwQLHNKGKGYVPDGT-ITYRKegCRMSGD 269
                         90       100       110       120
                 ....*....|....*....|....*....|....*....|..
gi 884294229  91 LPTSFGNTITCYIKATAAAKAAGLRNPDFLVCGDDLVVVAES 132
Cdd:cd23236  270 INTSLGNYLLMCAMVYGYMRHLGINEFSLANCGDDCVLIVER 311
 
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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