Annotations: 2Q6F

Crystal structure of infectious bronchitis virus (IBV) main protease in complex with a Michael acceptor inhibitor N3

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
B	d2q6fb_	All beta proteins	Trypsin-like serine proteases	Trypsin-like serine proteases	automated matches	automated matches	(Infectious bronchitis virus ) [TaxId: 11120 ],	SCOPe (2.08)
A	d2q6fa_	All beta proteins	Trypsin-like serine proteases	Trypsin-like serine proteases	automated matches	automated matches	(Infectious bronchitis virus ) [TaxId: 11120 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Viral cysteine protease of trypsin fold, (M)Pro-like	8076486	4002259	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Trypsin-like serine proteases	8076487	3000114	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Gal-bind_lectin	e2q6fB1	A: alpha arrays	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Gal-bind_lectin	ECOD (v295.2)
A	Gal-bind_lectin	e2q6fA1	A: alpha arrays	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Gal-bind_lectin	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.40.10.10	Mainly Beta	Beta Barrel	Thrombin, subunit H	Trypsin-like serine proteases	CATH (4.3.0)
B	1.10.1840.10	Mainly Alpha	Orthogonal Bundle	main proteinase (3clpro) structure, domain 3	main proteinase (3clpro) structure, domain 3	CATH (4.3.0)
A	2.40.10.10	Mainly Beta	Beta Barrel	Thrombin, subunit H	Trypsin-like serine proteases	CATH (4.3.0)
A	1.10.1840.10	Mainly Alpha	Orthogonal Bundle	main proteinase (3clpro) structure, domain 3	main proteinase (3clpro) structure, domain 3	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth D], D [auth C]	N-[(5-METHYLISOXAZOL-3-YL)CARBONYL]ALANYL-L-VALYL-N~1~-((1R,2Z)-4-(BENZYLOXY)-4-OXO-1-{[(3R)-2-OXOPYRROLIDIN-3-YL]METHYL}BUT-2-ENYL)-L-LEUCINAMIDE	-	-	-
A, B	Infectious bronchitis virus (IBV) main protease	peptidase activity catalytic activity, acting on a protein hydrolase activity catalytic activity cation binding ion binding binding metal ion binding small molecule binding	viral gene expression viral process viral translational frameshifting viral translation viral protein processing proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	host cellular component cellular anatomical structure host cell part host cell membrane other organism part

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR044308	Non-structural protein 5, gammacoronavirus	Domain
A, B	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
A, B	IPR043477	Peptidase C30, domain 3, coronavirus	Homologous Superfamily
A, B	IPR008740	Peptidase C30, coronavirus	Domain