CRYSTAL STRUCTURE OF AN ENOLASE (PUTATIVE GALACTARATE DEHYDRATASE, TARGET EFI-500740) FROM AGROBACTERIUM RADIOBACTER, BOUND NA and L-MALATE, ORDERED ACTIVE SITE
Domain Annotation: ECOD Classification ECOD Database Homepage
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) |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
| Chains | Polymer | Molecular Function | Biological Process | Cellular Component |
|---|---|---|---|---|
| ENOLASE | - | - |
InterPro: Protein Family Classification InterPro Database Homepage
| Chains | Accession | Name | Type |
|---|---|---|---|
| IPR034593 | D-galactonate dehydratase DgoD-like | Family | |
| IPR029065 | Enolase_C-like | Unknown | |
| IPR034623 | Galactarate dehydratase 3 | Family | |
| IPR013342 | Mandelate racemase, C-terminal domain | Domain | |
| IPR029017 | Enolase-like, N-terminal | Homologous Superfamily | |
| IPR036849 | Enolase-like, C-terminal domain superfamily | Homologous Superfamily | |
| IPR013341 | Mandelate racemase, N-terminal domain | Domain |
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
| Chains | Enzyme Name | Description | Catalytic Residues |
|---|---|---|---|
| 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 | |














