Annotations: 4S3D

IspG in complex with PPi

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	GcpE N-terminal domain-like	8053955	3002254	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Nitrite and sulphite reductase 4Fe-4S domain-like	8053960	3000646	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	KH_2	e4s3dA1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: KH_2	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.20.20	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Dihydropteroate synthase-like	CATH (4.3.0)
A	3.30.413.10	Alpha Beta	2-Layer Sandwich	Sulfite Reductase Hemoprotein	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF04551	GcpE TIM-barrel domain (GcpE)	GcpE TIM-barrel domain	In a variety of organisms, including plants and several eubacteria, isoprenoids are synthesised by the mevalonate-independent 2-C-methyl-D-erythritol 4-phosphate (MEP) pathway. Although different enzymes of this pathway have been described, the termi ...	In a variety of organisms, including plants and several eubacteria, isoprenoids are synthesised by the mevalonate-independent 2-C-methyl-D-erythritol 4-phosphate (MEP) pathway. Although different enzymes of this pathway have been described, the terminal biosynthetic steps of the MEP pathway have not been fully elucidated. GcpE gene of Escherichia coli is involved in this pathway [2].	Domain
A	PF26540	GcpE protein C-terminal domain (GcpE_C)	GcpE protein C-terminal domain	In a variety of organisms, including plants and several eubacteria, isoprenoids are synthesised by the mevalonate-independent 2-C-methyl-D-erythritol 4-phosphate (MEP) pathway. Although different enzymes of this pathway have been described, the termi ...	In a variety of organisms, including plants and several eubacteria, isoprenoids are synthesised by the mevalonate-independent 2-C-methyl-D-erythritol 4-phosphate (MEP) pathway. Although different enzymes of this pathway have been described, the terminal biosynthetic steps of the MEP pathway have not been fully elucidated. GcpE gene of Escherichia coli is involved in this pathway [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase	oxidoreductase activity, acting on CH or CH2 groups, with an iron-sulfur protein as acceptor oxidoreductase activity oxidoreductase activity, acting on CH or CH2 groups 4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase activity (ferredoxin) catalytic activity iron-sulfur cluster binding binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding 4-hydroxy-3-methylbut-2-enyl-diphosphate synthase activity (flavodoxin) cation binding transition metal ion binding iron ion binding oxidoreductase activity, acting on CH or CH2 groups, with an iron-sulfur protein as acceptor oxidoreductase activity oxidoreductase activity, acting on CH or CH2 groups 4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase activity (ferredoxin) catalytic activity iron-sulfur cluster binding binding 4 iron, 4 sulfur cluster binding metal cluster binding small molecule binding 4-hydroxy-3-methylbut-2-enyl-diphosphate synthase activity (flavodoxin) cation binding transition metal ion binding iron ion binding ion binding metal ion binding	isoprenoid biosynthetic process isopentenyl diphosphate biosynthetic process lipid biosynthetic process carbohydrate derivative metabolic process primary metabolic process isopentenyl diphosphate biosynthetic process, methylerythritol phosphate pathway glyceraldehyde-3-phosphate metabolic process phospholipid biosynthetic process aldehyde metabolic process phospholipid metabolic process biosynthetic process organophosphate metabolic process organophosphate biosynthetic process metabolic process isoprenoid biosynthetic process isopentenyl diphosphate biosynthetic process lipid biosynthetic process carbohydrate derivative metabolic process primary metabolic process isopentenyl diphosphate biosynthetic process, methylerythritol phosphate pathway glyceraldehyde-3-phosphate metabolic process phospholipid biosynthetic process aldehyde metabolic process phospholipid metabolic process biosynthetic process organophosphate metabolic process organophosphate biosynthetic process metabolic process cellular process phosphorus metabolic process lipid metabolic process isoprenoid metabolic process isopentenyl diphosphate metabolic process terpenoid biosynthetic process terpenoid metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR016425	4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase, bacterial	Family
A	IPR058579	IspG, C-terminal domain	Domain
A	IPR011005	Dihydropteroate synthase-like superfamily	Homologous Superfamily
A	IPR045854	Nitrite and sulphite reductase 4Fe-4S domain-like superfamily	Homologous Superfamily
A	IPR058578	IspG, TIM-barrel domain	Domain
A	IPR004588	4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase, bacterial-type	Family