2EUA

Structure and Mechanism of MenF, the Menaquinone-Specific Isochorismate Synthase from Escherichia Coli

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
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: 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: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	ADC synthase	8039651	3001093	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	ADC synthase	8039651	3001093	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	Chorismate_bind	e2euaA1	A: a+b duplicates or obligate multimers	X: ADC synthase (From Topology)	H: ADC synthase (From Topology)	T: ADC synthase	F: Chorismate_bind	ECOD (1.6)
B	Chorismate_bind	e2euaB1	A: a+b duplicates or obligate multimers	X: ADC synthase (From Topology)	H: ADC synthase (From Topology)	T: ADC synthase	F: Chorismate_bind	ECOD (1.6)

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
A, B	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
A, B	Menaquinone-specific isochorismate synthase	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding isomerase activity isochorismate synthase activity intramolecular hydroxytransferase activity catalytic activity intramolecular transferase activity	biosynthetic process small molecule biosynthetic process ketone metabolic process menaquinone metabolic process metabolic process cellular process small molecule metabolic process menaquinone biosynthetic process ketone biosynthetic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR015890	Chorismate-utilising enzyme, C-terminal	Domain
A, B	IPR044250	Isochorismate synthase MenF-like	Family
A, B	IPR004561	Isochorismate synthase	Family
A, B	IPR005801	ADC synthase	Homologous Superfamily
A, B	IPR034681	Isochorismate synthase MenF	Family

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	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 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 5.4.4.2 (PDB Primary Data) Search M-CSA Motif + EC 5.4.4.2

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729.