Chalcone isomerase and naringenin
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
| Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| A | d1eyqa_ | Alpha and beta proteins (a+b) | Chalcone isomerase | Chalcone isomerase | Chalcone isomerase | Chalcone isomerase | (Medicago sativa ) [TaxId: 3879 ], | SCOPe (2.08) |
| B | d1eyqb_ | Alpha and beta proteins (a+b) | Chalcone isomerase | Chalcone isomerase | Chalcone isomerase | Chalcone isomerase | (Medicago sativa ) [TaxId: 3879 ], | SCOPe (2.08) |
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| A | SCOP2 Family | Chalcone isomerase-like | 8022578 | 4001110 | SCOP2 (2022-06-29) |
| A | SCOP2 Superfamily | Cytochrome P460/chalcone isomerase-like | 8034958 | 3000788 | SCOP2 (2022-06-29) |
| B | SCOP2B Superfamily | Cytochrome P460/chalcone isomerase-like | 8034958 | 3000788 | SCOP2B (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 | Chalcone | e1eyqA1 | A: a+b two layers | X: Chalcone isomerase (From Topology) | H: Chalcone isomerase (From Topology) | T: Chalcone isomerase | F: Chalcone | ECOD (1.6) |
| B | Chalcone | e1eyqB1 | A: a+b two layers | X: Chalcone isomerase (From Topology) | H: Chalcone isomerase (From Topology) | T: Chalcone isomerase | F: Chalcone | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| A | 1.10.890.20 | Mainly Alpha | Orthogonal Bundle | 10k-s Protein, Hypothetical Protein A | Chain A | CATH (4.2.0) |
| A | 3.50.70.10 | Alpha Beta | 3-Layer(bba) Sandwich | Chalcone isomerase | CATH (4.2.0) | |
| B | 1.10.890.20 | Mainly Alpha | Orthogonal Bundle | 10k-s Protein, Hypothetical Protein A | Chain A | CATH (4.2.0) |
| B | 3.50.70.10 | Alpha Beta | 3-Layer(bba) Sandwich | Chalcone isomerase | CATH (4.2.0) |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
| Chains | Polymer | Molecular Function | Biological Process | Cellular Component |
|---|---|---|---|---|
| CHALCONE-FLAVONONE ISOMERASE 1 | - |
InterPro: Protein Family Classification InterPro Database Homepage
| Chains | Accession | Name | Type |
|---|---|---|---|
| IPR016087 | Chalcone isomerase | Domain | |
| IPR016088 | Chalcone isomerase, 3-layer sandwich | Homologous Superfamily | |
| IPR044164 | Chalcone--flavonone isomerase | Family | |
| IPR016089 | Chalcone isomerase, orthogonal bundle domain superfamily | Homologous Superfamily | |
| IPR036298 | Chalcone isomerase superfamily | Homologous Superfamily |
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
| Chains | Enzyme Name | Description | Catalytic Residues |
|---|---|---|---|
| chalcone isomerase M-CSA #196 | Chalcone isomerase is required in plant flavonoid biosynthesis, catalysing the cyclisation of chalcone with a 1:100,000 preference for the S-isomer over the R- isomer. This pathway is well characterised, and so the flavonoid biosynthetic enzymes are attractive targets for metabolic engineering. | EC: 5.5.1.6 (PDB Primary Data) |














