Annotations: 5LAK

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Peptidase_C4	e5lakA1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Peptidase_C4	ECOD (1.6)
A	UNK_F_TYPE	e5lakA2	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: UNK_F_TYPE	ECOD (1.6)
B	Peptidase_C4	e5lakB1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Peptidase_C4	ECOD (1.6)
B	UNK_F_TYPE	e5lakB2	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: UNK_F_TYPE	ECOD (1.6)
C	Peptidase_C4	e5lakC2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Peptidase_C4	ECOD (1.6)
C	UNK_F_TYPE	e5lakC1	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: UNK_F_TYPE	ECOD (1.6)
D	Peptidase_C4	e5lakD1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Peptidase_C4	ECOD (1.6)
D	UNK_F_TYPE	e5lakD2	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: UNK_F_TYPE	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF17222	Viral cysteine endopeptidase C107 (Peptidase_C107)	Viral cysteine endopeptidase C107	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	3Cl Protease	RNA methyltransferase activity O-methyltransferase activity catalytic activity, acting on RNA transferase activity, transferring one-carbon groups catalytic activity, acting on a nucleic acid mRNA (nucleoside-2'-O-)-methyltransferase activity transferase activity S-adenosylmethionine-dependent methyltransferase activity methyltransferase activity catalytic activity mRNA methyltransferase activity binding adenyl ribonucleotide binding nucleotide binding RNA methyltransferase activity O-methyltransferase activity catalytic activity, acting on RNA transferase activity, transferring one-carbon groups catalytic activity, acting on a nucleic acid mRNA (nucleoside-2'-O-)-methyltransferase activity transferase activity S-adenosylmethionine-dependent methyltransferase activity methyltransferase activity catalytic activity mRNA methyltransferase activity binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding helicase activity ATP-dependent activity 5'-3' RNA polymerase activity RNA polymerase activity RNA-dependent RNA polymerase activity nucleotidyltransferase activity transferase activity, transferring phosphorus-containing groups cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein cysteine-type endopeptidase activity hydrolase activity endopeptidase activity 3'-5'-RNA exonuclease activity RNA exonuclease activity, producing 5'-phosphomonoesters 3'-5' exonuclease activity RNA exonuclease activity RNA nuclease activity exonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters nuclease activity hydrolase activity, acting on ester bonds exonuclease activity DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding double-stranded DNA binding transcription termination site sequence-specific DNA binding nucleic acid binding transcription regulatory region nucleic acid binding cation binding transition metal ion binding zinc ion binding metal ion binding	RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process DNA-templated transcription termination nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process transcription by RNA polymerase II biosynthetic process metabolic process RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process DNA-templated transcription termination nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process transcription by RNA polymerase II biosynthetic process metabolic process cellular process macromolecule metabolic process termination of RNA polymerase II transcription methylation proteolysis protein metabolic process	cellular anatomical structure membrane
E [auth I], F [auth J], G [auth K]	BEZ-TYR-TYR-ASN-ECC Peptide inhibitor	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR046438	Nidovirus 2-O-methyltransferase	Domain
A, B, C, D	IPR027352	Nonstructural protein 13, zinc-binding domain, coronavirus-like	Domain
A, B, C, D	IPR045055	DNA2/NAM7-like helicase	Family
A, B, C, D	IPR033777	Viral cysteine endopeptidase C107	Family
A, B, C, D	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
A, B, C, D	IPR041679	DNA2/NAM7 helicase-like, C-terminal	Domain
A, B, C, D	IPR046436	Nidovirus 3'-5' exoribonuclease domain	Domain
A, B, C, D	IPR038599	LAP1C-like, C-terminal domain superfamily	Homologous Superfamily
A, B, C, D	IPR047187	Upf1-like, C-terminal helicase domain	Domain
A, B, C, D	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily

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.