2GTH

crystal structure of the wildtype MHV coronavirus non-structural protein nsp15

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2gtha1	Alpha and beta proteins (a/b)	S-adenosyl-L-methionine-dependent methyltransferases	S-adenosyl-L-methionine-dependent methyltransferases	Nsp15 N-terminal domain-like	Nsp15	(Murine hepatitis virus strain A59 ) [TaxId: 11142 ],	SCOPe (2.08)
A	d2gtha2	Alpha and beta proteins (a+b)	EndoU-like	EndoU-like	Nsp15 C-terminal domain-like	Nsp15, C-terminal domain	(Murine hepatitis virus strain A59 ) [TaxId: 11142 ],	SCOPe (2.08)
A	d2gtha3	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Murine hepatitis virus strain A59 ) [TaxId: 11142 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	S-adenosyl-L-methionine-dependent methyltransferases	8042049	3000118	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	EndoU-like	8042050	3000687	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	XendoU_like	e2gthA1	A: a+b complex topology	X: RNase A-like	H: EndoU-like (From Topology)	T: EndoU-like	F: XendoU_like	ECOD (1.6)
A	NSP11_2nd	e2gthA2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: NSP11_2nd	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.160.820	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain	Nsp15 N-terminal domain-like	CATH (4.3.0)
A	3.40.50.11580	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	nsp15 middle domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF19215	Coronavirus replicase NSP15, uridylate-specific endoribonuclease (CoV_NSP15_C)	Coronavirus replicase NSP15, uridylate-specific endoribonuclease	This entry represents the C-terminal domain of coronavirus non-structural protein 15 (NSP15 or nsp15). NSP15 is encoded by ORF1a/1ab and proteolytically released from the pp1a/1ab polyprotein. This domain exhibits endoribonuclease activity designated ...	This entry represents the C-terminal domain of coronavirus non-structural protein 15 (NSP15 or nsp15). NSP15 is encoded by ORF1a/1ab and proteolytically released from the pp1a/1ab polyprotein. This domain exhibits endoribonuclease activity designated EndoU, highly conserved in all known CoVs and is part of the replicase-transcriptase complex that plays important roles in virus replication and transcription [1, 2, 3]. NSP15 is a Uridylate-specific endoribonuclease that cleaves the 5'-polyuridines from negative-sense viral RNA, termed PUN RNA either upstream or downstream of uridylates, at GUU or GU to produce molecules with 2',3'-cyclic phosphate ends [2, 3]. PUN RNA is a CoV MDA5-dependent pathogen-associated molecular pattern (PAMP) [3].	Domain
A	PF19216	Coronavirus replicase NSP15, middle domain (CoV_NSP15_M)	Coronavirus replicase NSP15, middle domain	This entry represents the non-catalytic middle domain from coronavirus non-structural protein 15 (NSP15). NSP15 is encoded by ORF1a/1ab and proteolytically released from the pp1a/1ab polyprotein. This domain is formed by ten beta strands organised in ...	This entry represents the non-catalytic middle domain from coronavirus non-structural protein 15 (NSP15). NSP15 is encoded by ORF1a/1ab and proteolytically released from the pp1a/1ab polyprotein. This domain is formed by ten beta strands organised into three beta hairpins [1, 2].	Domain
A	PF19219	Coronavirus replicase NSP15, N-terminal oligomerisation (CoV_NSP15_N)	Coronavirus replicase NSP15, N-terminal oligomerisation	This is the N-terminal domain of the coronavirus nonstructural protein 15 (NSP15), which is encoded by ORF1a/1ab and proteolytically released from the pp1a/1ab polyprotein. NSP15, is a nidoviral RNA uridylate-specific endoribonuclease (NendoU) carryi ...	This is the N-terminal domain of the coronavirus nonstructural protein 15 (NSP15), which is encoded by ORF1a/1ab and proteolytically released from the pp1a/1ab polyprotein. NSP15, is a nidoviral RNA uridylate-specific endoribonuclease (NendoU) carrying C-terminal catalytic domain belonging to the EndoU family. The SARS-CoV-2 NendoU monomers assemble into a double-ring hexamer, generated by a dimer of trimers. The hexamer is stabilized by the interactions of N-terminal oligomerization domain.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Replicase polyprotein 1ab	3'-5'-RNA exonuclease activity catalytic activity, acting on RNA RNA exonuclease activity, producing 5'-phosphomonoesters catalytic activity, acting on a nucleic acid 3'-5' exonuclease activity RNA exonuclease activity RNA nuclease activity hydrolase activity exonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters nuclease activity hydrolase activity, acting on ester bonds exonuclease activity catalytic activity cysteine-type peptidase activity 3'-5'-RNA exonuclease activity catalytic activity, acting on RNA RNA exonuclease activity, producing 5'-phosphomonoesters catalytic activity, acting on a nucleic acid 3'-5' exonuclease activity RNA exonuclease activity RNA nuclease activity hydrolase activity exonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters nuclease activity hydrolase activity, acting on ester bonds exonuclease activity catalytic activity cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding helicase activity RNA helicase activity ATP-dependent activity, acting on RNA ATP-dependent activity endonuclease activity ATP-dependent activity, acting on DNA DNA helicase activity catalytic activity, acting on DNA 5'-3' DNA helicase activity RNA methyltransferase activity O-methyltransferase activity transferase activity, transferring one-carbon groups mRNA (nucleoside-2'-O-)-methyltransferase activity transferase activity S-adenosylmethionine-dependent methyltransferase activity methyltransferase activity mRNA methyltransferase activity 5'-3' RNA polymerase activity RNA polymerase activity RNA-dependent RNA polymerase activity nucleotidyltransferase activity transferase activity, transferring phosphorus-containing groups mRNA 5'-cap (guanine-N7-)-methyltransferase activity N-methyltransferase activity RNA binding nucleic acid binding cation binding transition metal ion binding zinc ion binding metal ion binding	RNA metabolic process viral life cycle primary metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process viral genome replication biosynthetic process viral RNA genome replication viral process metabolic process RNA metabolic process viral life cycle primary metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process viral genome replication biosynthetic process viral RNA genome replication viral process metabolic process cellular process macromolecule metabolic process gene expression DNA-templated transcription viral gene expression viral translational frameshifting viral translation	cellular anatomical structure membrane host cellular component host intracellular part host cell perinuclear region of cytoplasm host cell cytoplasm host cell part host intracellular region host cell cytoplasm part host cell membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR042515	Non-structural protein NSP15, N-terminal domain superfamily, coronavirus	Homologous Superfamily
A	IPR048673	Nonstructural protein 13, stalk domain, coronavirus	Domain
A	IPR046435	NSP14, guanine-N7-methyltransferase domain, coronavirus	Domain
A	IPR043174	Non-structural protein NSP15, middle domain superfamily	Homologous Superfamily
A	IPR009469	RNA-dependent RNA polymerase, N-terminal, coronavirus	Domain
A	IPR044315	Nonstructural protein 14, betacoronavirus	Domain
A	IPR046441	RNA-dependent RNA polymerase, coronavirus	Domain
A	IPR048672	Nonstructural protein 13, zinc-binding domain, coronavirus	Domain
A	IPR044863	Nidovirus RdRp-associated nucleotidyl transferase (NiRAN) domain	Domain
A	IPR044343	Nonstructural protein 13, 1B domain, coronavirus	Domain
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A	IPR043608	Nonstructural protein 15, middle domain, coronavirus	Domain
A	IPR037227	Endoribonuclease EndoU-like	Homologous Superfamily
A	IPR027352	Nonstructural protein 13, zinc-binding domain, coronavirus-like	Domain
A	IPR009466	Non-structural protein 14, coronavirus	Domain
A	IPR046436	Nidovirus 3'-5' exoribonuclease domain	Domain
A	IPR047570	NSP12, interface domain, coronavirus	Domain
A	IPR027351	(+) RNA virus helicase core domain	Domain
A	IPR044322	Nonstructural protein 15, middle domain, alpha/betacoronavirus	Domain
A	IPR009461	Non-structural protein NSP16, coronavirus-like	Domain
A	IPR050534	Coronaviruses polyprotein 1ab	Family
A	IPR043606	Coronavirus replicase NSP15, N-terminal oligomerization	Domain
A	IPR044330	Nonstructural protein 15, N-terminal domain, alpha/beta-coronavirus	Domain
A	IPR001205	RNA-directed RNA polymerase, C-terminal domain	Domain
A	IPR044401	NSP15, NendoU domain, coronavirus	Domain
A	IPR041679	DNA2/NAM7 helicase-like, C-terminal	Domain
A	IPR046440	Arterivirus Nsp11 N-terminal/Coronavirus NSP15 middle domain	Domain
A	IPR046438	Nidovirus 2-O-methyltransferase	Domain
A	IPR029063	S-adenosyl-L-methionine-dependent methyltransferase superfamily	Homologous Superfamily
A	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
A	IPR044347	RNA-dependent RNA polymerase, coronavirus HKU1-like	Domain
A	IPR043609	NendoU domain, nidovirus	Domain
A	IPR007094	RNA-directed RNA polymerase, catalytic domain	Domain