8G6R

Porcine epidemic diarrhea virus core polymerase complex


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AF_UNCLASSIFIEDe8g6rA1 A: a+b two layersX: Alpha-beta plaitsH: Adenylyl and guanylyl cyclase catalytic domain-likeT: Adenylyl and guanylyl cyclase catalytic domain-likeF: F_UNCLASSIFIEDECOD (1.6)
BF_UNCLASSIFIEDe8g6rB1 A: beta barrelsX: Coronavirus NSP8-like (From Topology)H: Coronavirus NSP8-like (From Topology)T: Coronavirus NSP8-likeF: F_UNCLASSIFIEDECOD (1.6)
CF_UNCLASSIFIEDe8g6rC1 A: alpha bundlesX: immunoglobulin/albumin-binding domain-likeH: Coronavirus NSP7-like (From Topology)T: Coronavirus NSP7-likeF: F_UNCLASSIFIEDECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00680Viral RNA-dependent RNA polymerase (RdRP_1)Viral RNA-dependent RNA polymerase- Family
PF06478Coronavirus RNA-dependent RNA polymerase, N-terminal (CoV_RPol_N)Coronavirus RNA-dependent RNA polymerase, N-terminalThis domain covers the N-terminal region of the coronavirus RNA-directed RNA Polymerase which corresponds to the nonstructural protein 12 (NSP12) produced by cleavage of ORF1b. NSP12 contains a polymerase domain that assumes a structure resembling a ...This domain covers the N-terminal region of the coronavirus RNA-directed RNA Polymerase which corresponds to the nonstructural protein 12 (NSP12) produced by cleavage of ORF1b. NSP12 contains a polymerase domain that assumes a structure resembling a cupped 'right hand', similar to other polymerases, containing a fingers domain, a palm domain and a thumb domain. Coronavirus NSP12 also contains a nidovirus-unique N-terminal extension (nidovirus RdRp-associated nucleotidyltransferase (NiRAN) that possesses a kinase-like fold allowing the binding of NSP12 to NSP7 and NSP8. NSP12 possesses some minimal activity on its own, but the addition of the NSP7 and NSP8 co-factors greatly stimulates polymerase activity [1,2,3,4]. This domain represents the N-terminal region of the coronavirus RNA-directed RNA Polymerase, which includes the NiRAN and interface domains [1,4]. The function of the NiRAN domain is not clear and its target is yet unknown, but it has enzymatic activity that is essential for viral propagation. Structure from SARS-CoV-2 revealed that this domain binds ADP-Mg+2, which may constitute a new pocket for anti-viral treatment development [5].
Domain
PF08717Coronavirus replicase NSP8 (CoV_NSP8)Coronavirus replicase NSP8Viral NSP8 (non structural protein 8) forms a hexadecameric supercomplex with NSP7 that adopts a hollow cylinder-like structure [1]. The dimensions of the central channel and positive electrostatic properties of the cylinder imply that it confers pro ...Viral NSP8 (non structural protein 8) forms a hexadecameric supercomplex with NSP7 that adopts a hollow cylinder-like structure [1]. The dimensions of the central channel and positive electrostatic properties of the cylinder imply that it confers processivity on RNA-dependent RNA polymerase [1]. NSP7 and NSP8 heterodimers play a role in the stabilisation of NSP12 regions involved in RNA binding and are essential for a highly active NSP12 polymerase complex [2]. It has been demonstrated that NSP8 acts as an oligo(U)-templated polyadenylyltransferase but also has robust (mono/oligo) adenylate transferase activities [3]. NSP8 has N- and C-terminal D/ExD/E conserved motifs, being the N-terminal motif critical for RNA polymerase activity as these residues are part of the Mg2-binding active site [4].
Domain
PF08716Coronavirus replicase NSP7 (CoV_NSP7)Coronavirus replicase NSP7NSP7 (non structural protein 7) has been implicated in viral RNA replication and is predominantly alpha helical in structure [1]. It forms a hexadecameric supercomplex with NSP8 that adopts a hollow cylinder-like structure [2]. The dimensions of the ...NSP7 (non structural protein 7) has been implicated in viral RNA replication and is predominantly alpha helical in structure [1]. It forms a hexadecameric supercomplex with NSP8 that adopts a hollow cylinder-like structure [2]. The dimensions of the central channel and positive electrostatic properties of the cylinder imply that it confers processivity on RNA-dependent RNA polymerase [2]. NSP7 and NSP8 heterodimers play a role in the stabilisation of NSP12 regions involved in RNA binding and are essential for a highly active NSP12 polymerase complex [3].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
nsp12
nsp8
nsp7
D [auth I]RNA (5'-R(P*AP*AP*GP*AP*AP*GP*CP*UP*AP*UP*UP*AP*AP*AP*AP*UP*CP*AP*CP*A)-3')---
E [auth J]RNA (5'-R(P*GP*GP*UP*UP*GP*UP*GP*AP*UP*UP*UP*UP*AP*AP*UP*AP*GP*CP*UP*U)-3')---

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR042515Non-structural protein NSP15, N-terminal domain superfamily, coronavirusHomologous Superfamily
IPR048673Nonstructural protein 13, stalk domain, coronavirusDomain
IPR046435NSP14, guanine-N7-methyltransferase domain, coronavirusDomain
IPR043174Non-structural protein NSP15, middle domain superfamilyHomologous Superfamily
IPR009469RNA-dependent RNA polymerase, N-terminal, coronavirusDomain
IPR043611Coronavirus replicase NSP3, C-terminalDomain
IPR038123Non-structural protein NSP4, C-terminal superfamily, coronavirusHomologous Superfamily
IPR047566Coronavirus replicase NSP3, Y domainDomain
IPR043178Papain-like protease, thumb domain superfamily, coronavirusHomologous Superfamily
IPR046441RNA-dependent RNA polymerase, coronavirusDomain
IPR048672Nonstructural protein 13, zinc-binding domain, coronavirusDomain
IPR043612Non-structural protein NSP4, N-terminal, coronavirusDomain
IPR044863Nidovirus RdRp-associated nucleotidyl transferase (NiRAN) domainDomain
IPR044343Nonstructural protein 13, 1B domain, coronavirusDomain
IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily
IPR043608Nonstructural protein 15, middle domain, coronavirusDomain
IPR044353NSP3, second ubiquitin-like (Ubl) domain, coronavirusDomain
IPR037227Endoribonuclease EndoU-likeHomologous Superfamily
IPR027352Nonstructural protein 13, zinc-binding domain, coronavirus-likeDomain
IPR009003Peptidase S1, PA clanHomologous Superfamily
IPR013016Peptidase C16, coronavirusDomain
IPR037204Non-structural protein NSP7 superfamily, coronavirusHomologous Superfamily
IPR047912Non-structural protein 13, helicase domain, alphacoronavirusDomain
IPR009466Non-structural protein 14, coronavirusDomain
IPR044357NSP3, first ubiquitin-like (Ubl) domain, coronavirusDomain
IPR046436Nidovirus 3'-5' exoribonuclease domainDomain
IPR046443NSP1, globular domain, alpha/betacoronavirusDomain
IPR047570NSP12, interface domain, coronavirusDomain
IPR044313Nonstructural protein 14, alphacoronavirusDomain
IPR043610Non-structural protein 6, coronavirusDomain
IPR027351(+) RNA virus helicase core domainDomain
IPR044322Nonstructural protein 15, middle domain, alpha/betacoronavirusDomain
IPR009461Non-structural protein NSP16, coronavirus-likeDomain
IPR043477Peptidase C30, domain 3, coronavirusHomologous Superfamily
IPR018995RNA synthesis protein NSP10, coronavirusDomain
IPR011050Pectin lyase fold/virulence factorHomologous Superfamily
IPR043615Nonstructural protein 2, N-terminal domain, coronavirusDomain
IPR050534Coronaviruses polyprotein 1abFamily
IPR043606Coronavirus replicase NSP15, N-terminal oligomerizationDomain
IPR044330Nonstructural protein 15, N-terminal domain, alpha/beta-coronavirusDomain
IPR001205RNA-directed RNA polymerase, C-terminal domainDomain
IPR044401NSP15, NendoU domain, coronavirusDomain
IPR044369Non-structural protein 6, alphacoronavirusDomain
IPR014822Non-structural protein NSP9, coronavirusDomain
IPR041679DNA2/NAM7 helicase-like, C-terminalDomain
IPR037230Non-structural protein NSP8 superfamily, coronavirusHomologous Superfamily
IPR044356RNA-dependent RNA polymerase, alphacoronavirusDomain
IPR046440Arterivirus Nsp11 N-terminal/Coronavirus NSP15 middle domainDomain
IPR014828Non-structural protein NSP7, coronavirusDomain
IPR032505Non-structural protein NSP4, C-terminal, coronavirusDomain
IPR014829Non-structural protein NSP8, coronavirusDomain
IPR046438Nidovirus 2-O-methyltransferaseDomain
IPR036499Non-structural protein NSP9 superfamily, coronavirusHomologous Superfamily
IPR002589Macro domainDomain
IPR029063S-adenosyl-L-methionine-dependent methyltransferase superfamilyHomologous Superfamily
IPR043502DNA/RNA polymerase superfamilyHomologous Superfamily
IPR008740Peptidase C30, coronavirusDomain
IPR036333RNA synthesis protein NSP10 superfamily, coronavirusHomologous Superfamily
IPR047573Non-structural protein 2, middle domain, coronavirusDomain
IPR049894Coronavirus NSP3, 3Ecto domainDomain
IPR044309Non-structural protein 5, alphacoronavirusDomain
IPR043472Macro domain-likeHomologous Superfamily
IPR043609NendoU domain, nidovirusDomain
IPR044371Non-structural protein 3, X-domain-likeDomain
IPR043613Non-structural protein 2, C-terminal domain, coronavirusDomain
IPR044385Nonstructural protein 2, HCoV-229E-likeDomain
IPR043504Peptidase S1, PA clan, chymotrypsin-like foldHomologous Superfamily
IPR042515Non-structural protein NSP15, N-terminal domain superfamily, coronavirusHomologous Superfamily
IPR048673Nonstructural protein 13, stalk domain, coronavirusDomain
IPR046435NSP14, guanine-N7-methyltransferase domain, coronavirusDomain
IPR043174Non-structural protein NSP15, middle domain superfamilyHomologous Superfamily
IPR009469RNA-dependent RNA polymerase, N-terminal, coronavirusDomain
IPR043611Coronavirus replicase NSP3, C-terminalDomain
IPR038123Non-structural protein NSP4, C-terminal superfamily, coronavirusHomologous Superfamily
IPR047566Coronavirus replicase NSP3, Y domainDomain
IPR043178Papain-like protease, thumb domain superfamily, coronavirusHomologous Superfamily
IPR046441RNA-dependent RNA polymerase, coronavirusDomain
IPR048672Nonstructural protein 13, zinc-binding domain, coronavirusDomain
IPR043612Non-structural protein NSP4, N-terminal, coronavirusDomain
IPR044863Nidovirus RdRp-associated nucleotidyl transferase (NiRAN) domainDomain
IPR044343Nonstructural protein 13, 1B domain, coronavirusDomain
IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily
IPR043608Nonstructural protein 15, middle domain, coronavirusDomain
IPR044353NSP3, second ubiquitin-like (Ubl) domain, coronavirusDomain
IPR037227Endoribonuclease EndoU-likeHomologous Superfamily
IPR027352Nonstructural protein 13, zinc-binding domain, coronavirus-likeDomain
IPR009003Peptidase S1, PA clanHomologous Superfamily
IPR013016Peptidase C16, coronavirusDomain
IPR037204Non-structural protein NSP7 superfamily, coronavirusHomologous Superfamily
IPR047912Non-structural protein 13, helicase domain, alphacoronavirusDomain
IPR009466Non-structural protein 14, coronavirusDomain
IPR044357NSP3, first ubiquitin-like (Ubl) domain, coronavirusDomain
IPR046436Nidovirus 3'-5' exoribonuclease domainDomain
IPR046443NSP1, globular domain, alpha/betacoronavirusDomain
IPR047570NSP12, interface domain, coronavirusDomain
IPR044313Nonstructural protein 14, alphacoronavirusDomain
IPR043610Non-structural protein 6, coronavirusDomain
IPR027351(+) RNA virus helicase core domainDomain
IPR044322Nonstructural protein 15, middle domain, alpha/betacoronavirusDomain
IPR009461Non-structural protein NSP16, coronavirus-likeDomain
IPR043477Peptidase C30, domain 3, coronavirusHomologous Superfamily
IPR018995RNA synthesis protein NSP10, coronavirusDomain
IPR011050Pectin lyase fold/virulence factorHomologous Superfamily
IPR043615Nonstructural protein 2, N-terminal domain, coronavirusDomain
IPR050534Coronaviruses polyprotein 1abFamily
IPR043606Coronavirus replicase NSP15, N-terminal oligomerizationDomain
IPR044330Nonstructural protein 15, N-terminal domain, alpha/beta-coronavirusDomain
IPR001205RNA-directed RNA polymerase, C-terminal domainDomain
IPR044401NSP15, NendoU domain, coronavirusDomain
IPR044369Non-structural protein 6, alphacoronavirusDomain
IPR014822Non-structural protein NSP9, coronavirusDomain
IPR041679DNA2/NAM7 helicase-like, C-terminalDomain
IPR037230Non-structural protein NSP8 superfamily, coronavirusHomologous Superfamily
IPR044356RNA-dependent RNA polymerase, alphacoronavirusDomain
IPR046440Arterivirus Nsp11 N-terminal/Coronavirus NSP15 middle domainDomain
IPR014828Non-structural protein NSP7, coronavirusDomain
IPR032505Non-structural protein NSP4, C-terminal, coronavirusDomain
IPR014829Non-structural protein NSP8, coronavirusDomain
IPR046438Nidovirus 2-O-methyltransferaseDomain
IPR036499Non-structural protein NSP9 superfamily, coronavirusHomologous Superfamily
IPR002589Macro domainDomain
IPR029063S-adenosyl-L-methionine-dependent methyltransferase superfamilyHomologous Superfamily
IPR043502DNA/RNA polymerase superfamilyHomologous Superfamily
IPR008740Peptidase C30, coronavirusDomain
IPR036333RNA synthesis protein NSP10 superfamily, coronavirusHomologous Superfamily
IPR047573Non-structural protein 2, middle domain, coronavirusDomain
IPR049894Coronavirus NSP3, 3Ecto domainDomain
IPR044309Non-structural protein 5, alphacoronavirusDomain
IPR043472Macro domain-likeHomologous Superfamily
IPR043609NendoU domain, nidovirusDomain
IPR044371Non-structural protein 3, X-domain-likeDomain
IPR043613Non-structural protein 2, C-terminal domain, coronavirusDomain
IPR044385Nonstructural protein 2, HCoV-229E-likeDomain
IPR043504Peptidase S1, PA clan, chymotrypsin-like foldHomologous Superfamily
IPR042515Non-structural protein NSP15, N-terminal domain superfamily, coronavirusHomologous Superfamily
IPR048673Nonstructural protein 13, stalk domain, coronavirusDomain
IPR046435NSP14, guanine-N7-methyltransferase domain, coronavirusDomain
IPR043174Non-structural protein NSP15, middle domain superfamilyHomologous Superfamily
IPR009469RNA-dependent RNA polymerase, N-terminal, coronavirusDomain
IPR043611Coronavirus replicase NSP3, C-terminalDomain
IPR038123Non-structural protein NSP4, C-terminal superfamily, coronavirusHomologous Superfamily
IPR047566Coronavirus replicase NSP3, Y domainDomain
IPR043178Papain-like protease, thumb domain superfamily, coronavirusHomologous Superfamily
IPR046441RNA-dependent RNA polymerase, coronavirusDomain
IPR048672Nonstructural protein 13, zinc-binding domain, coronavirusDomain
IPR043612Non-structural protein NSP4, N-terminal, coronavirusDomain
IPR044863Nidovirus RdRp-associated nucleotidyl transferase (NiRAN) domainDomain
IPR044343Nonstructural protein 13, 1B domain, coronavirusDomain
IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily
IPR043608Nonstructural protein 15, middle domain, coronavirusDomain
IPR044353NSP3, second ubiquitin-like (Ubl) domain, coronavirusDomain
IPR037227Endoribonuclease EndoU-likeHomologous Superfamily
IPR027352Nonstructural protein 13, zinc-binding domain, coronavirus-likeDomain
IPR009003Peptidase S1, PA clanHomologous Superfamily
IPR013016Peptidase C16, coronavirusDomain
IPR037204Non-structural protein NSP7 superfamily, coronavirusHomologous Superfamily
IPR047912Non-structural protein 13, helicase domain, alphacoronavirusDomain
IPR009466Non-structural protein 14, coronavirusDomain
IPR044357NSP3, first ubiquitin-like (Ubl) domain, coronavirusDomain
IPR046436Nidovirus 3'-5' exoribonuclease domainDomain
IPR046443NSP1, globular domain, alpha/betacoronavirusDomain
IPR047570NSP12, interface domain, coronavirusDomain
IPR044313Nonstructural protein 14, alphacoronavirusDomain
IPR043610Non-structural protein 6, coronavirusDomain
IPR027351(+) RNA virus helicase core domainDomain
IPR044322Nonstructural protein 15, middle domain, alpha/betacoronavirusDomain
IPR009461Non-structural protein NSP16, coronavirus-likeDomain
IPR043477Peptidase C30, domain 3, coronavirusHomologous Superfamily
IPR018995RNA synthesis protein NSP10, coronavirusDomain
IPR011050Pectin lyase fold/virulence factorHomologous Superfamily
IPR043615Nonstructural protein 2, N-terminal domain, coronavirusDomain
IPR050534Coronaviruses polyprotein 1abFamily
IPR043606Coronavirus replicase NSP15, N-terminal oligomerizationDomain
IPR044330Nonstructural protein 15, N-terminal domain, alpha/beta-coronavirusDomain
IPR001205RNA-directed RNA polymerase, C-terminal domainDomain
IPR044401NSP15, NendoU domain, coronavirusDomain
IPR044369Non-structural protein 6, alphacoronavirusDomain
IPR014822Non-structural protein NSP9, coronavirusDomain
IPR041679DNA2/NAM7 helicase-like, C-terminalDomain
IPR037230Non-structural protein NSP8 superfamily, coronavirusHomologous Superfamily
IPR044356RNA-dependent RNA polymerase, alphacoronavirusDomain
IPR046440Arterivirus Nsp11 N-terminal/Coronavirus NSP15 middle domainDomain
IPR014828Non-structural protein NSP7, coronavirusDomain
IPR032505Non-structural protein NSP4, C-terminal, coronavirusDomain
IPR014829Non-structural protein NSP8, coronavirusDomain
IPR046438Nidovirus 2-O-methyltransferaseDomain
IPR036499Non-structural protein NSP9 superfamily, coronavirusHomologous Superfamily
IPR002589Macro domainDomain
IPR029063S-adenosyl-L-methionine-dependent methyltransferase superfamilyHomologous Superfamily
IPR043502DNA/RNA polymerase superfamilyHomologous Superfamily
IPR008740Peptidase C30, coronavirusDomain
IPR036333RNA synthesis protein NSP10 superfamily, coronavirusHomologous Superfamily
IPR047573Non-structural protein 2, middle domain, coronavirusDomain
IPR049894Coronavirus NSP3, 3Ecto domainDomain
IPR044309Non-structural protein 5, alphacoronavirusDomain
IPR043472Macro domain-likeHomologous Superfamily
IPR043609NendoU domain, nidovirusDomain
IPR044371Non-structural protein 3, X-domain-likeDomain
IPR043613Non-structural protein 2, C-terminal domain, coronavirusDomain
IPR044385Nonstructural protein 2, HCoV-229E-likeDomain
IPR043504Peptidase S1, PA clan, chymotrypsin-like foldHomologous Superfamily