Crystal structure of a meta-cleavage product hydrolase (CumD) complexed with n-butyrate
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
| Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| A | d1uk7a_ | Alpha and beta proteins (a/b) | alpha/beta-Hydrolases | alpha/beta-Hydrolases | Carbon-carbon bond hydrolase | Meta-cleavage product hydrolase CumD | (Pseudomonas fluorescens ) [TaxId: 294 ], | SCOPe (2.08) |
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Domain Annotation: ECOD Classification ECOD Database Homepage
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) |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
| Chains | Polymer | Molecular Function | Biological Process | Cellular Component |
|---|---|---|---|---|
| 2-hydroxy-6-oxo-7-methylocta-2,4-dienoate hydrolase | - |
InterPro: Protein Family Classification InterPro Database Homepage
| Chains | Accession | Name | Type |
|---|---|---|---|
| IPR000639 | Epoxide hydrolase-like | Family | |
| IPR000073 | Alpha/beta hydrolase fold-1 | Domain | |
| IPR050266 | AB hydrolase superfamily | Family | |
| 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 |
|---|---|---|---|
| 2-hydroxymuconate-semialdehyde hydrolase M-CSA #771 | Meta-cleavage product hydrolases (MCP-hydrolase) are key enzymes involved in the microbial degradation of aromatic compounds. MCP-hydrolase CumD is a dimeric enzyme produced by Pseudomonas fluorescens IP01 and is involved in the pathway for the degradation of cumene. MCP-hydrolase enzymes produce 2-hydroxypenta-2,4-dienoate and various organic acids, depending upon the C6 substituent of the substrate. CumD prefers larger C6 substituents compared to other monoalkylbenzene hydrolases, such as TodF. Hence, when CumD acts on the meta-cleavage product of cumene, 2-hydroxypenta-2,4-dienoate and isobutyric acid are the products. The understanding of the catalytic mechanism of MCP-hydrolases is neccessary to improve biological degradation of environmental pollutant aromatic compounds, which may be carcinogenic, toxic and mutagenic. | Defined by 5 residues: SER:A-34ALA:A-103PHE:A-104ASP:A-224HIS:A-252 | EC: 3.7.1.9 (PDB Primary Data) |














