1JU3

BACTERIAL COCAINE ESTERASE COMPLEX WITH TRANSITION STATE ANALOG

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Structure Motif: Primary M-CSA Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1ju3a1	All beta proteins	Galactose-binding domain-like	Galactose-binding domain-like	PepX C-terminal domain-like	Bacterial cocaine esterase, C-terminal domain	(Rhodococcus sp. MB1 ) [TaxId: 51612 ],	SCOPe (2.08)
A	d1ju3a2	Alpha and beta proteins (a/b)	alpha/beta-Hydrolases	alpha/beta-Hydrolases	PepX catalytic domain-like	Bacterial cocaine esterase N-terminal domain	(Rhodococcus sp. MB1 ) [TaxId: 51612 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	pepx c-terminal domain-like	8024995	4003032	SCOP2 (2022-06-29)
A	SCOP2 Family	PepX catalytic domain-like	8024996	4003340	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	galactose-binding domain-like	8037374	3000087	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	alpha/beta-Hydrolases	8037375	3000102	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)
A	PepX_C	e1ju3A1	A: beta sandwiches	X: jelly-roll	H: Concanavalin A-like	T: Galactose-binding domain-like	F: PepX_C	ECOD (1.6)
A	Hydrolase_4	e1ju3A2	A: a/b three-layered sandwiches	X: alpha/beta-Hydrolases (From Topology)	H: alpha/beta-Hydrolases (From Topology)	T: alpha/beta-Hydrolases	F: Hydrolase_4	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.1820	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Alpha/Beta hydrolase fold, catalytic domain	CATH (4.3.0)
A	2.60.120.260	Mainly Beta	Sandwich	Jelly Rolls	Galactose-binding domain-like	CATH (4.3.0)
A	1.10.3020.10	Mainly Alpha	Orthogonal Bundle	alpha-amino acid ester hydrolase ( Helical cap domain)	alpha-amino acid ester hydrolase ( Helical cap domain)	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF08530	X-Pro dipeptidyl-peptidase C-terminal non-catalytic domain (PepX_C)	X-Pro dipeptidyl-peptidase C-terminal non-catalytic domain	This domain contains a beta sandwich domain.	Domain
A	PF02129	X-Pro dipeptidyl-peptidase (S15 family) (Peptidase_S15)	X-Pro dipeptidyl-peptidase (S15 family)	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	cocaine esterase	peptidase activity catalytic activity, acting on a protein dipeptidyl-peptidase activity hydrolase activity exopeptidase activity catalytic activity hydrolase activity, acting on ester bonds carboxylic ester hydrolase activity	organonitrogen compound catabolic process catabolic process organonitrogen compound metabolic process cocaine catabolic process alkaloid catabolic process alkaloid metabolic process tropane alkaloid metabolic process organic cyclic compound catabolic process cocaine metabolic process organic cyclic compound metabolic process organic substance metabolic process metabolic process organic substance catabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR005674	CocE/Serine esterase	Family
A	IPR000383	Xaa-Pro dipeptidyl-peptidase-like domain	Domain
A	IPR013736	Xaa-Pro dipeptidyl-peptidase, C-terminal	Domain
A	IPR008979	Galactose-binding-like domain superfamily	Homologous Superfamily
A	IPR029058	Alpha/Beta hydrolase fold	Homologous Superfamily

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	cocaine esterase M-CSA #465	Cocaine esterase (CocE) is from a Rhodococcus strain that lives in the soil of the cocaine producing plant Erythroxylum coca, which is able to use cocaine as its sole carbon and nitrogen source for growth. CocE hydrolyses cocaine to benzoate and ecgonine methyl ester. Also efficiently hydrolyses cocaethylene, a more potent cocaine metabolite that has been observed in patients who concurrently abuse cocaine and alcohol. Is able to prevent cocaine-induced convulsions and lethality in rat. Hence, CocE is of interest as a cocaine antagonist in acute overdose cases. CocE belongs to the alpha/beta hydrolase fold superfamily, specifically the CocE/Serine esterase Family. The amino acid sequence of cocaine esterase has a region of similarity with the active serine consensus of X-prolyl dipeptidyl aminopeptidases, suggesting that the cocaine esterase is a serine esterase.	Defined by 6 residues: TYR:A-44SER:A-117TYR:A-118TRP:A-166ASP:A-259HIS:A-287 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif

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.