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Conserved domains on  [gi|953224769|gb|ALO61396|]
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putative RNA-dependent RNA polymerase, partial [Curvularia thermal tolerance 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 ...
57-207 8.58e-10

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 pfam00680:

Pssm-ID: 477363  Cd Length: 450  Bit Score: 59.73  E-value: 8.58e-10
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 953224769   57 YPISVGLSWYHEGAQAFVKRFLNFTE-FYCLDARKYDVFLDPWLIQIAINICREQFvdGRDERYDAyWDFVRESLVEAPI 135
Cdd:pfam00680 201 HPIQVGINPFDRGWPRLLRRLARFGDyVYELDYSGFDSSVPPWLIRFAFEILRELL--GFPSNVKE-WRAILELLIYTPI 277
                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 953224769  136 CRDDGIRLQKRVGTTSGHSHNTLLQSI-RTLIVGYGVLMATH-PDLTDEEIKAAAQIESLGDDNITGTKAPLQP 207
Cdd:pfam00680 278 ALPNGTVFKKTGGLPSGSPFTSIINSIvNYLLILYALLKSLEnDGPRVCNLDKYFDFFTYGDDSLVAVSPDFDP 351
 
Name Accession Description Interval E-value
RdRP_1 pfam00680
Viral RNA-dependent RNA polymerase; This family represents the RNA-directed RNA polymerase ...
57-207 8.58e-10

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: 59.73  E-value: 8.58e-10
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 953224769   57 YPISVGLSWYHEGAQAFVKRFLNFTE-FYCLDARKYDVFLDPWLIQIAINICREQFvdGRDERYDAyWDFVRESLVEAPI 135
Cdd:pfam00680 201 HPIQVGINPFDRGWPRLLRRLARFGDyVYELDYSGFDSSVPPWLIRFAFEILRELL--GFPSNVKE-WRAILELLIYTPI 277
                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 953224769  136 CRDDGIRLQKRVGTTSGHSHNTLLQSI-RTLIVGYGVLMATH-PDLTDEEIKAAAQIESLGDDNITGTKAPLQP 207
Cdd:pfam00680 278 ALPNGTVFKKTGGLPSGSPFTSIINSIvNYLLILYALLKSLEnDGPRVCNLDKYFDFFTYGDDSLVAVSPDFDP 351
Caliciviridae_RdRp cd23192
catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the family Caliciviridae of ...
58-177 9.74e-04

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the family Caliciviridae of positive-sense single-stranded RNA [(+)ssRNA] viruses; This group contains the catalytic core domain of RdRp of RNA viruses belonging to the family Caliciviridae, order Picornavirales. Member viruses have a viral (+)ssRNA genome, which is not segmented. The family Caliciviridae, includes eleven genera: seven genera of which infect mammals (Lagovirus, Norovirus, Nebovirus, Recovirus, Sapovirus, Valovirus, and Vesivirus), two genera of which infect birds (Bavovirus, Nacovirus), and two genera of which infect fish (Minovirus and Salovirus). Each genus includes 1-2 species. Human noroviruses are a leading cause of acute gastroenteritis in humans. Furthermore, unclassified caliciviruses have been detected in geese, yellowfin seabream, greater green snake, arctic lamprey, frogs and various Australian birds, highlighting the wide host range of viruses in the family Caliciviridae. 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: 438042  Cd Length: 310  Bit Score: 40.71  E-value: 9.74e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 953224769  58 PISVGLSWYHEGAQAFVKRFLNFTEFYCLDARKYDVFLDPWLIQIAINICREqFVDGRDERydaywDFVRESLVEAPICR 137
Cdd:cd23192   55 PIAVGINMDSEDVEVIFERLSGFRYHYCLDYSKWDSTQSPAVTAAAIDILAD-LSEETPLR-----DSVVETLSSPPMGI 128
                         90       100       110       120
                 ....*....|....*....|....*....|....*....|.
gi 953224769 138 DDGIRLQKRVGTTSGHSHNTLLQSIRTLI-VGYGVLMATHP 177
Cdd:cd23192  129 FDDVIFVTKRGLPSGMPFTSVINSLNHWLlFSAAVLKAYEL 169
 
Name Accession Description Interval E-value
RdRP_1 pfam00680
Viral RNA-dependent RNA polymerase; This family represents the RNA-directed RNA polymerase ...
57-207 8.58e-10

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: 59.73  E-value: 8.58e-10
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 953224769   57 YPISVGLSWYHEGAQAFVKRFLNFTE-FYCLDARKYDVFLDPWLIQIAINICREQFvdGRDERYDAyWDFVRESLVEAPI 135
Cdd:pfam00680 201 HPIQVGINPFDRGWPRLLRRLARFGDyVYELDYSGFDSSVPPWLIRFAFEILRELL--GFPSNVKE-WRAILELLIYTPI 277
                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 953224769  136 CRDDGIRLQKRVGTTSGHSHNTLLQSI-RTLIVGYGVLMATH-PDLTDEEIKAAAQIESLGDDNITGTKAPLQP 207
Cdd:pfam00680 278 ALPNGTVFKKTGGLPSGSPFTSIINSIvNYLLILYALLKSLEnDGPRVCNLDKYFDFFTYGDDSLVAVSPDFDP 351
Caliciviridae_RdRp cd23192
catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the family Caliciviridae of ...
58-177 9.74e-04

catalytic core domain of RNA-dependent RNA polymerase (RdRp) in the family Caliciviridae of positive-sense single-stranded RNA [(+)ssRNA] viruses; This group contains the catalytic core domain of RdRp of RNA viruses belonging to the family Caliciviridae, order Picornavirales. Member viruses have a viral (+)ssRNA genome, which is not segmented. The family Caliciviridae, includes eleven genera: seven genera of which infect mammals (Lagovirus, Norovirus, Nebovirus, Recovirus, Sapovirus, Valovirus, and Vesivirus), two genera of which infect birds (Bavovirus, Nacovirus), and two genera of which infect fish (Minovirus and Salovirus). Each genus includes 1-2 species. Human noroviruses are a leading cause of acute gastroenteritis in humans. Furthermore, unclassified caliciviruses have been detected in geese, yellowfin seabream, greater green snake, arctic lamprey, frogs and various Australian birds, highlighting the wide host range of viruses in the family Caliciviridae. 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: 438042  Cd Length: 310  Bit Score: 40.71  E-value: 9.74e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 953224769  58 PISVGLSWYHEGAQAFVKRFLNFTEFYCLDARKYDVFLDPWLIQIAINICREqFVDGRDERydaywDFVRESLVEAPICR 137
Cdd:cd23192   55 PIAVGINMDSEDVEVIFERLSGFRYHYCLDYSKWDSTQSPAVTAAAIDILAD-LSEETPLR-----DSVVETLSSPPMGI 128
                         90       100       110       120
                 ....*....|....*....|....*....|....*....|.
gi 953224769 138 DDGIRLQKRVGTTSGHSHNTLLQSIRTLI-VGYGVLMATHP 177
Cdd:cd23192  129 FDDVIFVTKRGLPSGMPFTSVINSLNHWLlFSAAVLKAYEL 169
 
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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