Annotations: 5HC1

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	XendoU_like	e5hc1A1	A: a+b complex topology	X: RNase A-like	H: EndoU-like (From Topology)	T: EndoU-like	F: XendoU_like	ECOD (1.6)
A	DUF3470_like	e5hc1A2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: DUF3470_like	ECOD (1.6)
B	XendoU_like	e5hc1B2	A: a+b complex topology	X: RNase A-like	H: EndoU-like (From Topology)	T: EndoU-like	F: XendoU_like	ECOD (1.6)
B	DUF3470_like	e5hc1B1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: DUF3470_like	ECOD (1.6)
C	XendoU_like	e5hc1C2	A: a+b complex topology	X: RNase A-like	H: EndoU-like (From Topology)	T: EndoU-like	F: XendoU_like	ECOD (1.6)
C	DUF3470_like	e5hc1C1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: DUF3470_like	ECOD (1.6)
D	XendoU_like	e5hc1D2	A: a+b complex topology	X: RNase A-like	H: EndoU-like (From Topology)	T: EndoU-like	F: XendoU_like	ECOD (1.6)
D	DUF3470_like	e5hc1D1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: DUF3470_like	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF22049	PRRSV nonstructural protein 11 N-terminal domain (PRRSV-NSP11_N)	PRRSV nonstructural protein 11 N-terminal domain	PRRSV nonstructural protein 11 (NSP11) consists of two domains. The N-terminal domain adopts an alpha/beta structure composed of a central antiparallel four-stranded beta-sheet packed with helices on both sides and capped with a beta-hairpin [1]. Thi ...	PRRSV nonstructural protein 11 (NSP11) consists of two domains. The N-terminal domain adopts an alpha/beta structure composed of a central antiparallel four-stranded beta-sheet packed with helices on both sides and capped with a beta-hairpin [1]. This domain may be involved in oligomerisation.	Domain
A, B, C, D	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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Non-structural protein 11	serine-type exopeptidase activity peptidase activity serine hydrolase activity catalytic activity, acting on a protein serine-type peptidase activity hydrolase activity exopeptidase activity catalytic activity serine-type endopeptidase activity endopeptidase activity binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding serine-type exopeptidase activity peptidase activity serine hydrolase activity catalytic activity, acting on a protein serine-type peptidase activity hydrolase activity exopeptidase activity catalytic activity serine-type endopeptidase activity endopeptidase activity binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid helicase activity RNA helicase activity ATP-dependent activity, acting on RNA ATP-dependent activity endonuclease activity nuclease activity hydrolase activity, acting on ester bonds 5'-3' RNA polymerase activity RNA polymerase activity transferase activity RNA-dependent RNA polymerase activity nucleotidyltransferase activity transferase activity, transferring phosphorus-containing groups cysteine-type peptidase activity cysteine-type endopeptidase activity lyase activity RNA binding nucleic acid binding ubiquitin-like protein peptidase activity cysteine-type deubiquitinase activity deubiquitinase activity RNA nuclease activity pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity, acting on acid anhydrides 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 symbiont-mediated perturbation of host defense response symbiont-mediated suppression of host ISG15-protein conjugation response to host defenses biological process involved in interspecies interaction between organisms response to stimulus response to other organism symbiont-mediated perturbation of host immune response symbiont-mediated perturbation of host defenses response to defenses of other organism response to external stimulus biological process involved in interaction with host response to biotic stimulus biological process involved in symbiotic interaction symbiont-mediated suppression of host immune response symbiont-mediated suppression of host innate immune response symbiont-mediated perturbation of host process symbiont-mediated suppression of host defenses symbiont-mediated perturbation of host innate immune response response to host response to external biotic stimulus modulation of process of another organism viral gene expression viral protein processing gene expression DNA-templated transcription modulation by virus of host process virus-mediated perturbation of host defense response modulation by virus of host cellular process symbiont-mediated perturbation of host cellular process symbiont-mediated perturbation of host ubiquitin-like protein modification symbiont-mediated suppression of host signal transduction pathway symbiont-mediated suppression of host interferon-mediated signaling pathway symbiont-mediated suppression of host type I interferon-mediated signaling pathway symbiont-mediated perturbation of host signal transduction pathway viral translational frameshifting viral translation proteolysis protein metabolic process	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 host intracellular membrane-bounded organelle host cell nucleus host intracellular organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR008741	Arterivirus papain-like cysteine protease alpha (PCPalpha) domain	Domain
A, B, C, D	IPR029323	Equine arteritis virus, non-structural protein 1	Domain
A, B, C, D	IPR043128	Reverse transcriptase/Diguanylate cyclase domain	Homologous Superfamily
A, B, C, D	IPR025773	Arterivirus papain-like cysteine protease beta (PCPbeta) domain	Domain
A, B, C, D	IPR044863	Nidovirus RdRp-associated nucleotidyl transferase (NiRAN) domain	Domain
A, B, C, D	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A, B, C, D	IPR037227	Endoribonuclease EndoU-like	Homologous Superfamily
A, B, C, D	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
A, B, C, D	IPR022230	Protein of unknown function DUF3756	Family
A, B, C, D	IPR008760	Equine arteritis virus peptidase S32	Family
A, B, C, D	IPR032786	Nsp2, transmembrane domain	Domain
A, B, C, D	IPR038451	Arterivirus nsp7 alpha superfamily	Homologous Superfamily
A, B, C, D	IPR027351	(+) RNA virus helicase core domain	Domain
A, B, C, D	IPR041053	Replicase polyprotein 1ab	Domain
A, B, C, D	IPR023338	Arterivirus NSP4 peptidase domain	Domain
A, B, C, D	IPR008743	Arterivirus Nsp2, peptidase C33	Domain
A, B, C, D	IPR001205	RNA-directed RNA polymerase, C-terminal domain	Domain
A, B, C, D	IPR027355	Nonstructural protein 10, zinc-binding domain, arterivirus	Domain
A, B, C, D	IPR046440	Arterivirus Nsp11 N-terminal/Coronavirus NSP15 middle domain	Domain
A, B, C, D	IPR044320	NSP11, N-terminal, arterivirus	Domain
A, B, C, D	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
A, B, C, D	IPR023183	Serine protease, chymotrypsin-like serine protease, C-terminal	Homologous Superfamily
A, B, C, D	IPR043609	NendoU domain, nidovirus	Domain
A, B, C, D	IPR044314	NSP11, NendoU domain, arterivirus	Domain
A, B, C, D	IPR043504	Peptidase S1, PA clan, chymotrypsin-like fold	Homologous Superfamily
A, B, C, D	IPR007094	RNA-directed RNA polymerase, catalytic domain	Domain
A, B, C, D	IPR041361	Nidovirus helicase, RING/Ubox like zinc-binding domain	Domain
A, B, C, D	IPR031932	Arterivirus nonstructural protein 7 alpha	Family