3FAO

Crystal structure of S118A mutant 3CLSP of PRRSV

External Resource: Annotation

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: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Trypsin-like serine proteases	8078276	3000114	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	PF05579	e3faoA1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: PF05579	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.10.10	Mainly Beta	Beta Barrel	Thrombin, subunit H	Trypsin-like serine proteases	CATH (4.3.0)
A	3.30.40.20	Alpha Beta	2-Layer Sandwich	Herpes Virus-1	Chymotrypsin-like serine protease	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF05579	Equine arteritis virus serine endopeptidase S32 (Peptidase_S32)	Equine arteritis virus serine endopeptidase S32	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Non-structural protein	cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein cysteine-type endopeptidase activity hydrolase activity catalytic activity endopeptidase activity serine hydrolase activity serine-type peptidase activity serine-type endopeptidase activity binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein cysteine-type endopeptidase activity hydrolase activity catalytic activity endopeptidase activity serine hydrolase activity serine-type peptidase activity serine-type 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 cation binding metal ion binding	symbiont-mediated perturbation of host cellular process biological process involved in interspecies interaction between organisms symbiont-mediated suppression of host JAK-STAT cascade biological process involved in interaction with host biological process involved in symbiotic interaction symbiont-mediated suppression of host signal transduction pathway symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT activity symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT1 activity modulation by symbiont of host process cellular process symbiont-mediated perturbation of host signal transduction pathway modulation of process of another organism viral gene expression viral protein processing symbiont-mediated perturbation of host cellular process biological process involved in interspecies interaction between organisms symbiont-mediated suppression of host JAK-STAT cascade biological process involved in interaction with host biological process involved in symbiotic interaction symbiont-mediated suppression of host signal transduction pathway symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT activity symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT1 activity modulation by symbiont of host process cellular process symbiont-mediated perturbation of host signal transduction pathway modulation of process of another organism viral gene expression viral protein processing viral process organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	membrane cellular anatomical entity intracellular anatomical structure cytoplasm host cellular component host intracellular part host cell cytoplasm host cell part host intracellular region 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	IPR038155	Arterivirus papain-like cysteine protease alpha (PCPalpha) domain superfamily	Homologous Superfamily
A	IPR008741	Arterivirus papain-like cysteine protease alpha (PCPalpha) domain	Domain
A	IPR025773	Arterivirus papain-like cysteine protease beta (PCPbeta) domain	Domain
A	IPR032785	Replicase polyprotein 1ab, peptidase C33-associated domain	Domain
A	IPR038154	Arterivirus papain-like cysteine protease beta (PCPbeta) domain superfamily	Homologous Superfamily
A	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
A	IPR032855	Arterivirus polyprotein, nsp2, immunogenic region	Domain
A	IPR023183	Serine protease, chymotrypsin-like serine protease, C-terminal	Homologous Superfamily
A	IPR008760	Equine arteritis virus peptidase S32	Family
A	IPR038451	Arterivirus nsp7 alpha superfamily	Homologous Superfamily
A	IPR023338	Arterivirus NSP4 peptidase domain	Domain
A	IPR043504	Peptidase S1, PA clan, chymotrypsin-like fold	Homologous Superfamily
A	IPR031932	Arterivirus nonstructural protein 7 alpha	Family
A	IPR008743	Arterivirus Nsp2, peptidase C33	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.