2CHR

A RE-EVALUATION OF THE CRYSTAL STRUCTURE OF CHLOROMUCONATE CYCLOISOMERASE

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-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2chra1	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Enolase C-terminal domain-like	D-glucarate dehydratase-like	Chlormuconate cycloisomerase	(Cupriavidus necator ) [TaxId: 106590 ],	SCOPe (2.08)
A	d2chra2	Alpha and beta proteins (a+b)	Enolase N-terminal domain-like	Enolase N-terminal domain-like	Enolase N-terminal domain-like	Chlormuconate cycloisomerase	(Cupriavidus necator ) [TaxId: 106590 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	D-glucarate dehydratase-like	8031255	4003246	SCOP2 (2022-06-29)
A	SCOP2 Family	Enolase N-terminal domain-like	8022781	4001209	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Enolase C-terminal domain-like	8043633	3000476	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Enolase N-terminal domain-like	8035161	3001064	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	PF02746	e2chrA1	A: a+b two layers	X: Enolase-N/ribosomal protein	H: Enolase N-terminal domain-like (From Topology)	T: Enolase N-terminal domain-like	F: PF02746	ECOD (1.6)
A	PF13378	e2chrA2	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: PF13378	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.390.10	Alpha Beta	2-Layer Sandwich	Enolase-like	domain 1	CATH (4.3.0)
A	3.20.20.120	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Enolase-like C-terminal domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02746	Mandelate racemase / muconate lactonizing enzyme, N-terminal domain (MR_MLE_N)	Mandelate racemase / muconate lactonizing enzyme, N-terminal domain	SCOP reports fold similarity with enolase N-terminal domain.	Domain
A	PF13378	Enolase C-terminal domain-like (MR_MLE_C)	Enolase C-terminal domain-like	This domain appears at the C-terminus of many of the proteins that carry the MR_MLE_N Pfam:PF02746 domain. EC:4.2.1.40.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	CHLOROMUCONATE CYCLOISOMERASE	intramolecular lyase activity isomerase activity chloromuconate cycloisomerase activity catalytic activity cation binding manganese ion binding transition metal ion binding ion binding binding metal ion binding small molecule binding muconate cycloisomerase activity	catabolic process organic substance metabolic process metabolic process amino acid metabolic process primary metabolic process amino acid catabolic process organic substance catabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR029065	Enolase C-terminal domain-like	Domain
A	IPR013341	Mandelate racemase/muconate lactonizing enzyme, N-terminal domain	Domain
A	IPR018110	Mandelate racemase/muconate lactonizing enzyme, conserved site	Conserved Site
A	IPR013342	Mandelate racemase/muconate lactonizing enzyme, C-terminal	Domain
A	IPR013370	Muconate/chloromuconate cycloisomerase	Family
A	IPR029017	Enolase-like, N-terminal	Homologous Superfamily
A	IPR036849	Enolase-like, C-terminal domain superfamily	Homologous Superfamily

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

Chains	Enzyme Name	Description	Catalytic Residues
A	chloromuconate cycloisomerase M-CSA #348	Bacterial muconate lactonizing enzymes (MLEs) catalyze the conversion of cis,cis-muconate as a part of the beta-ketoadipate pathway. Some MLEs, including the enzyme annotated here, are also able to dehalogenate chlorinated muconate to form five-member furan rings. This enzyme catalyses several cyclisation and dehalogenation reactions.	Defined by 7 residues: LYS:A-163LYS:A-165ASP:A-194GLU:A-220ASP:A-245LYS:A-269GLU:A-323 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 5.5.1.7 (PDB Primary Data) Search M-CSA Motif + EC 5.5.1.7

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.