Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyCoronavirus NSP4 C-terminal domain-like8045408 4004459 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyCoronavirus NSP4 C-terminal domain-like8090554 3002444 SCOP2 (2022-06-29)
BSCOP2B SuperfamilyCoronavirus NSP4 C-terminal domain-like8090554 3002444 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ACorona_NSP4_Ce3vc8A1 A: a+b two layersX: C-terminal domain of nonstructural protein nsp4 (From Topology)H: C-terminal domain of nonstructural protein nsp4 (From Topology)T: C-terminal domain of nonstructural protein nsp4F: Corona_NSP4_CECOD (1.6)
BCorona_NSP4_Ce3vc8B2 A: a+b two layersX: C-terminal domain of nonstructural protein nsp4 (From Topology)H: C-terminal domain of nonstructural protein nsp4 (From Topology)T: C-terminal domain of nonstructural protein nsp4F: Corona_NSP4_CECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A1.10.150.420 Mainly Alpha Orthogonal Bundle DNA polymerase domain 1CATH (4.3.0)
B1.10.150.420 Mainly Alpha Orthogonal Bundle DNA polymerase domain 1CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF16348Coronavirus replicase NSP4, C-terminal (CoV_NSP4_C)Coronavirus replicase NSP4, C-terminalThis is the C-terminal domain of the coronavirus nonstructural protein 4 (NSP4). NSP4 is encoded by ORF1a/1ab and proteolytically released from the pp1a/1ab polyprotein. It is a membrane-spanning protein which is thought to anchor the viral replicati ...This is the C-terminal domain of the coronavirus nonstructural protein 4 (NSP4). NSP4 is encoded by ORF1a/1ab and proteolytically released from the pp1a/1ab polyprotein. It is a membrane-spanning protein which is thought to anchor the viral replication-transcription complex (RTC) to modified endoplasmic reticulum membranes. This predominantly alpha-helical domain may be involved in protein-protein interactions [1]. It has been shown that in Betacoronavirus, the coexpression of NSP3 and NSP4 results in a membrane rearrangement to induce double-membrane vesicles (DMVs) and convoluted membranes (CMs), playing a critical role in SARS-CoV replication. There are two well conserved amino acid residues (H120 and F121) in NSP4 among Betacoronavirus, essential for membrane rearrangements during interaction with NSP3 [2,3].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
RNA-directed RNA polymerase

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A, B
IPR022733DPUP/SUD, C-terminal, betacoronavirusDomain
A, B
IPR044384Non-structural protein 2, MHV-likeDomain
A, B
IPR042515Non-structural protein NSP15, N-terminal domain superfamily, coronavirusHomologous Superfamily
A, B
IPR043174Non-structural protein NSP15, middle domain superfamilyHomologous Superfamily
A, B
IPR044315Nonstructural protein 14, 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
IPR043178Papain-like protease, thumb domain superfamily, coronavirusHomologous Superfamily
A, B
IPR046441RNA-dependent RNA polymerase, coronavirusDomain
A, B
IPR044863Nidovirus RdRp-associated nucleotidyl transferase (NiRAN) domainDomain
A, B
IPR044343Nonstructural protein 13, 1B domain, coronavirusDomain
A, B
IPR037227Endoribonuclease EndoU-likeHomologous Superfamily
A, B
IPR027352Nonstructural protein 13, zinc-binding domain, coronavirus-likeDomain
A, B
IPR009003Peptidase S1, PA clanHomologous Superfamily
A, B
IPR013016Peptidase C16, coronavirusDomain
A, B
IPR009466Non-structural protein 14, coronavirusDomain
A, B
IPR044357NSP3, first ubiquitin-like (Ubl) domain, coronavirusDomain
A, B
IPR046436Nidovirus 3'-5' exoribonuclease domainDomain
A, B
IPR047570NSP12, interface domain, coronavirusDomain
A, B
IPR018995RNA synthesis protein NSP10, coronavirusDomain
A, B
IPR043615Nonstructural protein 2, N-terminal domain, coronavirusDomain
A, B
IPR043177Papain-like protease, N-terminal domain superfamily, coronavirusHomologous Superfamily
A, B
IPR043606Coronavirus replicase NSP15, N-terminal oligomerizationDomain
A, B
IPR044330Nonstructural protein 15, N-terminal domain, alpha/beta-coronavirusDomain
A, B
IPR041679DNA2/NAM7 helicase-like, C-terminalDomain
A, B
IPR014828Non-structural protein NSP7, 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
IPR029063S-adenosyl-L-methionine-dependent methyltransferase superfamilyHomologous Superfamily
A, B
IPR043502DNA/RNA polymerase superfamilyHomologous Superfamily
A, B
IPR008740Peptidase C30, coronavirusDomain
A, B
IPR044347RNA-dependent RNA polymerase, coronavirus HKU1-likeDomain
A, B
IPR036333RNA synthesis protein NSP10 superfamily, coronavirusHomologous Superfamily
A, B
IPR047573Non-structural protein 2, middle domain, coronavirusDomain
A, B
IPR043472Macro domain-likeHomologous Superfamily
A, B
IPR043609NendoU domain, nidovirusDomain
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
A, B
IPR048673Nonstructural protein 13, stalk domain, coronavirusDomain
A, B
IPR022570Betacoronavirus, lineage A, NSP1Family
A, B
IPR046435NSP14, guanine-N7-methyltransferase domain, coronavirusDomain
A, B
IPR009469RNA-dependent RNA polymerase, N-terminal, coronavirusDomain
A, B
IPR043611Coronavirus replicase NSP3, C-terminalDomain
A, B
IPR047566Coronavirus replicase NSP3, Y domainDomain
A, B
IPR048672Nonstructural protein 13, zinc-binding domain, coronavirusDomain
A, B
IPR043612Non-structural protein NSP4, N-terminal, coronavirusDomain
A, B
IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily
A, B
IPR043608Nonstructural protein 15, middle domain, coronavirusDomain
A, B
IPR044353NSP3, second ubiquitin-like (Ubl) domain, coronavirusDomain
A, B
IPR037204Non-structural protein NSP7 superfamily, coronavirusHomologous Superfamily
A, B
IPR046443NSP1, globular domain, alpha/betacoronavirusDomain
A, B
IPR043610Non-structural protein 6, coronavirusDomain
A, B
IPR027351(+) RNA virus helicase core domainDomain
A, B
IPR044322Nonstructural protein 15, middle domain, alpha/betacoronavirusDomain
A, B
IPR009461Non-structural protein NSP16, coronavirus-likeDomain
A, B
IPR043477Peptidase C30, domain 3, coronavirusHomologous Superfamily
A, B
IPR046442NSP1, C-terminal domain, betacoronavirusDomain
A, B
IPR045055DNA2/NAM7-like helicaseFamily
A, B
IPR001205RNA-directed RNA polymerase, C-terminal domainDomain
A, B
IPR044401NSP15, NendoU domain, coronavirusDomain
A, B
IPR014822Non-structural protein NSP9, coronavirusDomain
A, B
IPR002705Peptidase C30/C16, BetacoronavirusDomain
A, B
IPR044367Non-structural protein 6, betacoronavirusDomain
A, B
IPR037230Non-structural protein NSP8 superfamily, coronavirusHomologous Superfamily
A, B
IPR046440Arterivirus Nsp11 N-terminal/Coronavirus NSP15 middle domainDomain
A, B
IPR032505Non-structural protein NSP4, C-terminal, coronavirusDomain
A, B
IPR046438Nidovirus 2-O-methyltransferaseDomain
A, B
IPR002589Macro domainDomain
A, B
IPR047567Non-structural protein NSP3, group 2-specific marker domain, betacoronavirusDomain
A, B
IPR044381NSP3, DPUP domain, murine hepatitis virus-likeDomain
A, B
IPR044371Non-structural protein 3, X-domain-likeDomain
A, B
IPR007094RNA-directed RNA polymerase, catalytic domainDomain