Structure and Mechanism of MenF, the Menaquinone-Specific Isochorismate Synthase from Escherichia Coli
External Resource: Annotation
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
| Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| A | d2euaa1 | Alpha and beta proteins (a+b) | ADC synthase | ADC synthase | ADC synthase | Menaquinone-specific isochorismate synthase MenF | (Escherichia coli ) [TaxId: 562 ], | SCOPe (2.08) |
| B | d2euab_ | Alpha and beta proteins (a+b) | ADC synthase | ADC synthase | ADC synthase | Menaquinone-specific isochorismate synthase MenF | (Escherichia coli ) [TaxId: 562 ], | SCOPe (2.08) |
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| A | FGE-sulfatase | e2euaA1 | A: beta barrels | X: ETN0001 domain-like | H: ETN0001 domain-like | T: Mss4-like | F: FGE-sulfatase | ECOD (v294.2) |
| B | FGE-sulfatase | e2euaB1 | A: beta barrels | X: ETN0001 domain-like | H: ETN0001 domain-like | T: Mss4-like | F: FGE-sulfatase | ECOD (v294.2) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| A | 3.60.120.10 | Alpha Beta | 4-Layer Sandwich | Anthranilate synthase | Anthranilate synthase | CATH (4.3.0) |
| B | 3.60.120.10 | Alpha Beta | 4-Layer Sandwich | Anthranilate synthase | Anthranilate synthase | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| PF00425 | chorismate binding enzyme (Chorismate_bind) | chorismate binding enzyme | This family includes the catalytic regions of the chorismate binding enzymes anthranilate synthase, isochorismate synthase, aminodeoxychorismate synthase and para-aminobenzoate synthase. | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
| Chains | Polymer | Molecular Function | Biological Process | Cellular Component |
|---|---|---|---|---|
| Menaquinone-specific isochorismate synthase | - |
InterPro: Protein Family Classification InterPro Database Homepage
| Chains | Accession | Name | Type |
|---|---|---|---|
| IPR015890 | Chorismate-utilising enzyme, C-terminal | Domain | |
| IPR044250 | Isochorismate synthase MenF-like | Family | |
| IPR004561 | Isochorismate synthase | Family | |
| IPR005801 | ADC synthase | Homologous Superfamily | |
| IPR034681 | Isochorismate synthase MenF | Family |
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
| Chains | Enzyme Name | Description | Catalytic Residues |
|---|---|---|---|
| isochorismate synthase (menaquinone-specific) M-CSA #325 | Isochorismate synthase (MenF) catalyses the conversion of chorismate to isochorismate, the first step in the biosynthesis of both the respiratory chain component menaquinone (MK, vitamin K2) and phylloquinone (vitamin K1). This entry represents the isoform in bacteria that is mainly channelled into menaquinone synthesis. | Defined by 5 residues: LYS:A-190GLU:A-240GLU:A-284GLU:A-416LYS:A-420 | EC: 5.4.4.2 (PDB Primary Data) |














