Annotations: 7T8M

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	8092431	3000114	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Trypsin-like serine proteases	8092431	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	Peptidase_C30_N	e7t8mA2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Peptidase_C30_N	ECOD (1.6)
A	Peptidase_C30_C	e7t8mA1	A: alpha arrays	X: Coronavirus main proteinase (3Cl-pro, putative coronavirus nsp2) C-terminal domain (From Topology)	H: Coronavirus main proteinase (3Cl-pro, putative coronavirus nsp2) C-terminal domain (From Topology)	T: Coronavirus main proteinase (3Cl-pro, putative coronavirus nsp2) C-terminal domain	F: Peptidase_C30_C	ECOD (1.6)
B	Peptidase_C30_N	e7t8mB2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Peptidase_C30_N	ECOD (1.6)
B	Peptidase_C30_C	e7t8mB1	A: alpha arrays	X: Coronavirus main proteinase (3Cl-pro, putative coronavirus nsp2) C-terminal domain (From Topology)	H: Coronavirus main proteinase (3Cl-pro, putative coronavirus nsp2) C-terminal domain (From Topology)	T: Coronavirus main proteinase (3Cl-pro, putative coronavirus nsp2) C-terminal domain	F: Peptidase_C30_C	ECOD (1.6)

Gene Product Annotation Gene Product Annotation

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	3C-like proteinase	RNA helicase activity catalytic activity helicase activity ATP-dependent activity, acting on RNA 5'-3' RNA helicase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid ATP-dependent activity pyrophosphatase activity hydrolase activity hydrolase activity, acting on acid anhydrides hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity cysteine-type deubiquitinase activity peptidase activity cysteine-type peptidase activity ubiquitin-like protein peptidase activity deubiquitinase activity catalytic activity, acting on a protein endopeptidase activity cysteine-type endopeptidase activity DNA helicase activity ATP-dependent activity, acting on DNA catalytic activity, acting on DNA nuclease activity endonuclease activity hydrolase activity, acting on ester bonds binding protein binding identical protein binding ISG15-specific peptidase activity lyase activity mRNA (nucleoside-2'-O-)-methyltransferase activity methyltransferase activity O-methyltransferase activity RNA methyltransferase activity mRNA methyltransferase activity S-adenosylmethionine-dependent methyltransferase activity transferase activity transferase activity, transferring one-carbon groups omega peptidase activity protein dimerization activity protein homodimerization activity RNA-dependent RNA polymerase activity transferase activity, transferring phosphorus-containing groups nucleotidyltransferase activity 5'-3' RNA polymerase activity RNA polymerase activity nucleic acid binding RNA binding single-stranded RNA binding organic cyclic compound binding heterocyclic compound binding zinc ion binding ion binding cation binding metal ion binding transition metal ion binding	viral process viral life cycle viral genome replication regulation of viral genome replication positive regulation of viral genome replication positive regulation of biological process positive regulation of viral process regulation of biological process regulation of viral process biological regulation regulation of viral life cycle metabolic process negative regulation of metabolic process cellular process gene expression regulation of gene expression negative regulation of macromolecule metabolic process negative regulation of gene expression modulation by virus of host process modulation by virus of host cellular process regulation of metabolic process modulation of process of another organism modulation by virus of host gene expression suppression by virus of host gene expression macromolecule metabolic process modulation by symbiont of host process modulation by symbiont of host cellular process biological process involved in symbiotic interaction biological process involved in interspecies interaction between organisms negative regulation of biological process regulation of cellular process biological process involved in interaction with host regulation of macromolecule metabolic process organic substance metabolic process response to external stimulus response to biotic stimulus mitigation of host antiviral defense response suppression by virus of host NF-kappaB cascade response to external biotic stimulus response to stimulus response to other organism modulation by symbiont of host defense response response to defenses of other organism response to host defenses response to host viral gene expression viral protein processing viral replication complex formation and maintenance viral transcription	host cellular component host cell cytoplasm host cell part host intracellular part host cell cytoplasm part viral factory cytoplasmic viral factory host intracellular region host cell cellular anatomical entity host cell membrane host intracellular organelle host intracellular membrane-bounded organelle double membrane vesicle viral factory host cell cytoplasmic vesicle host cell cytoplasmic vesicle membrane double membrane vesicle viral factory membrane double membrane vesicle viral factory outer membrane protein-containing complex catalytic complex peptidase complex endopeptidase complex intracellular protein-containing complex endoribonuclease complex endonuclease complex exoribonuclease complex host cell endoplasmic reticulum host cell endoplasmic reticulum-Golgi intermediate compartment host cell endosome host cell Golgi apparatus host cell nucleus host cell perinuclear region of cytoplasm mRNA cap binding complex RNA cap binding complex intracellular anatomical structure nucleus mRNA cap methyltransferase complex methyltransferase complex organelle membrane-bounded organelle intracellular organelle intracellular membrane-bounded organelle nuclear protein-containing complex transferase complex RNA polymerase complex RNA-directed RNA polymerase complex viral RNA-directed RNA polymerase complex transferase complex, transferring phosphorus-containing groups
C, D	Nonstructural protein 5/6	RNA helicase activity catalytic activity helicase activity ATP-dependent activity, acting on RNA 5'-3' RNA helicase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid ATP-dependent activity pyrophosphatase activity hydrolase activity hydrolase activity, acting on acid anhydrides hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity cysteine-type deubiquitinase activity peptidase activity cysteine-type peptidase activity ubiquitin-like protein peptidase activity deubiquitinase activity catalytic activity, acting on a protein endopeptidase activity cysteine-type endopeptidase activity DNA helicase activity ATP-dependent activity, acting on DNA catalytic activity, acting on DNA nuclease activity endonuclease activity hydrolase activity, acting on ester bonds binding protein binding identical protein binding ISG15-specific peptidase activity lyase activity mRNA (nucleoside-2'-O-)-methyltransferase activity methyltransferase activity O-methyltransferase activity RNA methyltransferase activity mRNA methyltransferase activity S-adenosylmethionine-dependent methyltransferase activity transferase activity transferase activity, transferring one-carbon groups omega peptidase activity protein dimerization activity protein homodimerization activity RNA-dependent RNA polymerase activity transferase activity, transferring phosphorus-containing groups nucleotidyltransferase activity 5'-3' RNA polymerase activity RNA polymerase activity nucleic acid binding RNA binding single-stranded RNA binding organic cyclic compound binding heterocyclic compound binding zinc ion binding ion binding cation binding metal ion binding transition metal ion binding	viral process viral life cycle viral genome replication regulation of viral genome replication positive regulation of viral genome replication positive regulation of biological process positive regulation of viral process regulation of biological process regulation of viral process biological regulation regulation of viral life cycle metabolic process negative regulation of metabolic process cellular process gene expression regulation of gene expression negative regulation of macromolecule metabolic process negative regulation of gene expression modulation by virus of host process modulation by virus of host cellular process regulation of metabolic process modulation of process of another organism modulation by virus of host gene expression suppression by virus of host gene expression macromolecule metabolic process modulation by symbiont of host process modulation by symbiont of host cellular process biological process involved in symbiotic interaction biological process involved in interspecies interaction between organisms negative regulation of biological process regulation of cellular process biological process involved in interaction with host regulation of macromolecule metabolic process organic substance metabolic process response to external stimulus response to biotic stimulus mitigation of host antiviral defense response suppression by virus of host NF-kappaB cascade response to external biotic stimulus response to stimulus response to other organism modulation by symbiont of host defense response response to defenses of other organism response to host defenses response to host viral gene expression viral protein processing viral replication complex formation and maintenance viral transcription	host cellular component host cell cytoplasm host cell part host intracellular part host cell cytoplasm part viral factory cytoplasmic viral factory host intracellular region host cell cellular anatomical entity host cell membrane host intracellular organelle host intracellular membrane-bounded organelle double membrane vesicle viral factory host cell cytoplasmic vesicle host cell cytoplasmic vesicle membrane double membrane vesicle viral factory membrane double membrane vesicle viral factory outer membrane protein-containing complex catalytic complex peptidase complex endopeptidase complex intracellular protein-containing complex endoribonuclease complex endonuclease complex exoribonuclease complex host cell endoplasmic reticulum host cell endoplasmic reticulum-Golgi intermediate compartment host cell endosome host cell Golgi apparatus host cell nucleus host cell perinuclear region of cytoplasm mRNA cap binding complex RNA cap binding complex intracellular anatomical structure nucleus mRNA cap methyltransferase complex methyltransferase complex organelle membrane-bounded organelle intracellular organelle intracellular membrane-bounded organelle nuclear protein-containing complex transferase complex RNA polymerase complex RNA-directed RNA polymerase complex viral RNA-directed RNA polymerase complex transferase complex, transferring phosphorus-containing groups

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.