Annotations: 2A4Q

HCV NS3 protease with NS4a peptide and a covalently bound macrocyclic ketoamide compound.

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C	MIF4G	e2a4qC1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: MIF4G	ECOD (v294.2)
A	MIF4G	e2a4qA1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: MIF4G	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C	2.40.10.120	Mainly Beta	Beta Barrel	Thrombin, subunit H		CATH (4.3.0)
C	2.40.10.10	Mainly Beta	Beta Barrel	Thrombin, subunit H	Trypsin-like serine proteases	CATH (4.3.0)
A	2.40.10.120	Mainly Beta	Beta Barrel	Thrombin, subunit H		CATH (4.3.0)
A	2.40.10.10	Mainly Beta	Beta Barrel	Thrombin, subunit H	Trypsin-like serine proteases	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B, D	NS4a peptide	-	viral process	virion component
A, C	NS3 protease/helicase'	nucleic acid conformation isomerase activity isomerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid helicase activity RNA helicase activity ATP-dependent activity, acting on RNA macromolecular conformation isomerase activity catalytic activity ATP-dependent activity peptidase activity serine hydrolase activity catalytic activity, acting on a protein serine-type peptidase activity nucleic acid conformation isomerase activity isomerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid helicase activity RNA helicase activity ATP-dependent activity, acting on RNA macromolecular conformation isomerase activity catalytic activity ATP-dependent activity peptidase activity serine hydrolase activity catalytic activity, acting on a protein serine-type peptidase activity hydrolase activity cation binding ion binding binding metal ion binding small molecule binding	proteolysis self proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process virion attachment to host cell biological process involved in interspecies interaction between organisms adhesion of symbiont to host cell viral process viral life cycle adhesion of symbiont to host biological process involved in interaction with host proteolysis self proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process virion attachment to host cell biological process involved in interspecies interaction between organisms adhesion of symbiont to host cell viral process viral life cycle adhesion of symbiont to host biological process involved in interaction with host biological process involved in symbiotic interaction symbiont entry into host cell symbiont entry into host symbiont-mediated perturbation of host cellular process symbiont-mediated perturbation of host process symbiont-mediated transformation of host cell modulation of process of another organism	host cellular component cellular anatomical structure host cell other organism part virion component virion membrane viral capsid host cell part host cell membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B, D	IPR000745	Hepatitis C virus, Non-structural protein NS4a	Domain
A, C	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
A, C	IPR004109	Hepatitis C virus, NS3 protease	Domain

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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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

2A4Q | pdb_00002a4q

HCV NS3 protease with NS4a peptide and a covalently bound macrocyclic ketoamide compound.

External Resource: Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Domain Annotation: CATH CATH Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage