Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ASUD-Me2w2gA2 A: a/b three-layered sandwichesX: Macro domain-like (From Topology)H: Macro domain-like (From Topology)T: Macro domain-likeF: SUD-MECOD (1.6)
AEUF08627e2w2gA1 A: a/b three-layered sandwichesX: Macro domain-like (From Topology)H: Macro domain-like (From Topology)T: Macro domain-likeF: EUF08627ECOD (1.6)
BSUD-Me2w2gB2 A: a/b three-layered sandwichesX: Macro domain-like (From Topology)H: Macro domain-like (From Topology)T: Macro domain-likeF: SUD-MECOD (1.6)
BEUF08627e2w2gB1 A: a/b three-layered sandwichesX: Macro domain-like (From Topology)H: Macro domain-like (From Topology)T: Macro domain-likeF: EUF08627ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF11633Betacoronavirus single-stranded poly(A) binding domain (bCoV_SUD_M)Betacoronavirus single-stranded poly(A) binding domainThis domain identifies non-structural protein NSP3, the product of ORF1a in group 2 coronavirus. It is found in human SARS coronavirus polyprotein 1a and 1ab, and in related coronavirus polyproteins [1]. NSP3 binds to viral RNA, nucleocapsid protein, ...This domain identifies non-structural protein NSP3, the product of ORF1a in group 2 coronavirus. It is found in human SARS coronavirus polyprotein 1a and 1ab, and in related coronavirus polyproteins [1]. NSP3 binds to viral RNA, nucleocapsid protein, as well as other viral proteins, and participates in polyprotein processing [2]. The domain exhibits a macrodomain fold containing the nsp3 residues 528 to 648, with a flexibly extended N-terminal tail from residues 513 to 527 and a C-terminal flexible tail of residues 649 to 651. SUD-M(527-651) binds single-stranded poly(A); the contact area with this RNA on the protein surface, and the electrophoretic mobility shift assays confirm that SUD-M has higher affinity for purine bases than for pyrimidine bases [3].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
NON-STRUCTURAL PROTEIN 3

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A, B
IPR022733DPUP/SUD, C-terminal, betacoronavirusDomain
A, B
IPR024358Non-structural protein NSP3, N-terminal, betacoronavirusDomain
A, B
IPR043611Coronavirus replicase NSP3, C-terminalDomain
A, B
IPR044864Non-structural protein NSP3, SUD-N (Mac2) domain, betacoronavirusDomain
A, B
IPR038123Non-structural protein NSP4, C-terminal superfamily, coronavirusHomologous Superfamily
A, B
IPR042570Non-structural protein NSP3, nucleic acid-binding domain superfamily, betacoronavirusHomologous Superfamily
A, B
IPR047566Coronavirus replicase NSP3, Y domainDomain
A, B
IPR043178Papain-like protease, thumb domain superfamily, coronavirusHomologous Superfamily
A, B
IPR043612Non-structural protein NSP4, N-terminal, coronavirusDomain
A, B
IPR038166Polyprotein cleavage domain PL2pro superfamily, betacoronavirusHomologous Superfamily
A, B
IPR044353NSP3, second ubiquitin-like (Ubl) domain, coronavirusDomain
A, B
IPR009003Peptidase S1, PA clanHomologous Superfamily
A, B
IPR013016Peptidase C16, coronavirusDomain
A, B
IPR037204Non-structural protein NSP7 superfamily, coronavirusHomologous Superfamily
A, B
IPR044374Non-structural protein 3, SUD-N macrodomain, SARS-CoVDomain
A, B
IPR044357NSP3, first ubiquitin-like (Ubl) domain, coronavirusDomain
A, B
IPR046443NSP1, globular domain, alpha/betacoronavirusDomain
A, B
IPR043610Non-structural protein 6, coronavirusDomain
A, B
IPR043477Peptidase C30, domain 3, coronavirusHomologous Superfamily
A, B
IPR018995RNA synthesis protein NSP10, coronavirusDomain
A, B
IPR043478Non-structural protein NSP3, SUD-N (Mac2) domain superfamily, betacoronavirusHomologous Superfamily
A, B
IPR038400Non-structural protein NSP3, SUD-M domain superfamily, betacoronavirusHomologous Superfamily
A, B
IPR046442NSP1, C-terminal domain, betacoronavirusDomain
A, B
IPR043615Nonstructural protein 2, N-terminal domain, coronavirusDomain
A, B
IPR043177Papain-like protease, N-terminal domain superfamily, coronavirusHomologous Superfamily
A, B
IPR014822Non-structural protein NSP9, coronavirusDomain
A, B
IPR038030NSP1 globular domain superfamily, betacoronavirusHomologous Superfamily
A, B
IPR021590NSP1, globular domain, betacoronavirusDomain
A, B
IPR024375Non-structural protein NSP3, SUD-M domain, betacoronavirusDomain
A, B
IPR044367Non-structural protein 6, betacoronavirusDomain
A, B
IPR037230Non-structural protein NSP8 superfamily, coronavirusHomologous Superfamily
A, B
IPR014828Non-structural protein NSP7, coronavirusDomain
A, B
IPR032505Non-structural protein NSP4, C-terminal, coronavirusDomain
A, B
IPR043503Papain-like viral protease, palm and finger domains, coronavirusHomologous Superfamily
A, B
IPR014829Non-structural protein NSP8, coronavirusDomain
A, B
IPR036499Non-structural protein NSP9 superfamily, coronavirusHomologous Superfamily
A, B
IPR002589Macro domainDomain
A, B
IPR047567Non-structural protein NSP3, group 2-specific marker domain, betacoronavirusDomain
A, B
IPR044389Non-structural protein 2, SARS-CoV-likeDomain
A, B
IPR008740Peptidase C30, coronavirusDomain
A, B
IPR036333RNA synthesis protein NSP10 superfamily, coronavirusHomologous Superfamily
A, B
IPR047573Non-structural protein 2, middle domain, coronavirusDomain
A, B
IPR049894Coronavirus NSP3, 3Ecto domainDomain
A, B
IPR043472Macro domain-likeHomologous Superfamily
A, B
IPR044371Non-structural protein 3, X-domain-likeDomain
A, B
IPR032592Non-structural protein NSP3, nucleic acid-binding domain, betacoronavirusDomain
A, B
IPR043613Non-structural protein 2, C-terminal domain, coronavirusDomain
A, B
IPR038083Non-structural protein NSP3A domain-like superfamilyHomologous Superfamily
A, B
IPR043504Peptidase S1, PA clan, chymotrypsin-like foldHomologous Superfamily