4JN7

CRYSTAL STRUCTURE OF AN ENOLASE (PUTATIVE GALACTARATE DEHYDRATASE, TARGET EFI-500740) FROM AGROBACTERIUM RADIOBACTER, BOUND NA and L-MALATE, ORDERED ACTIVE SITE

External Resource: Annotation

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: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	MR_MLE_N	e4jn7A1	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: MR_MLE_N	ECOD (1.6)
A	MR_MLE_C	e4jn7A2	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: MR_MLE_C	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	ENOLASE	isomerase activity catalytic activity hydro-lyase activity galactarate dehydratase activity lyase activity carbon-oxygen lyase activity	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR034593	D-galactonate dehydratase DgoD-like	Family
A	IPR029065	Enolase C-terminal domain-like	Domain
A	IPR013341	Mandelate racemase/muconate lactonizing enzyme, N-terminal domain	Domain
A	IPR034623	Galactarate dehydratase 3	Family
A	IPR013342	Mandelate racemase/muconate lactonizing enzyme, C-terminal	Domain
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	galactarate dehydratase (type III) M-CSA #503	Characterized enzymes in the galactarate dehydratase III family catalyse the dehydration of m-galactarate to 2-keto-3-deoxy-galactarate, as part of the synthesis of alpha-ketoglutarate. They differ from previously characterised galactarate dehydratases in the enolase superfamily, utilising some unique catalytic residues. The characterised enzyme from Agrobacterium tumefaciens C58 has also been shown to convert D-galacturonate to 3-deoxy-D-xylo-hexarate or 3-deoxy-D-lyxo-hexarate, an unexpected reaction for an enolase superfamily member, as it involves abstraction of a proton alpha to an aldehyde group rather than a proton alpha to a carboxylate group.	Defined by 6 residues: ASP:A-189HIS:A-191GLU:A-216GLU:A-242ASP:A-265HIS:A-292 \| 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.