Annotations: 1X9I

Crystal structure of Crystal structure of phosphoglucose/phosphomannose phosphoglucose/phosphomannoseisomerase from Pyrobaculum aerophilum in complex with glucose 6-phosphate

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

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1x9ia_	Alpha and beta proteins (a/b)	SIS domain	SIS domain	double-SIS domain	Glucose-6-phosphate isomerase, conjectural	(Pyrobaculum aerophilum ) [TaxId: 13773 ],	SCOPe (2.08)
B	d1x9ib_	Alpha and beta proteins (a/b)	SIS domain	SIS domain	double-SIS domain	Glucose-6-phosphate isomerase, conjectural	(Pyrobaculum aerophilum ) [TaxId: 13773 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Double-SIS domain	8031420	4000802	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	SIS domain/Ribosomal protein S2-like	8052802	3001397	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	SIS domain/Ribosomal protein S2-like	8043798	3001397	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	SIS domain/Ribosomal protein S2-like	8043798	3001397	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	SIS domain/Ribosomal protein S2-like	8052802	3001397	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	bact-PGI_C	e1x9iA2	A: a/b three-layered sandwiches	X: 4Fe-4S ferredoxin	H: 4Fe-4S ferredoxin	T: 4Fe-4S ferredoxin	F: bact-PGI_C	ECOD (v294.1)
B	SIS	e1x9iB1	A: a/b three-layered sandwiches	X: Ribosomal protein L31e-like	H: Reductive activator for corrinoid/iron-sulfur protein second domain	T: Reductive activator for corrinoid/iron-sulfur protein second domain	F: SIS	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.10490	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Glucose-6-phosphate isomerase like protein	CATH (4.3.0)
B	3.40.50.10490	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Glucose-6-phosphate isomerase like protein	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF10432	Bacterial phospho-glucose isomerase C-terminal SIS domain (bact-PGI_C)	Bacterial phospho-glucose isomerase C-terminal SIS domain	This is the C-terminal SIS domain of a bacterial phospho-glucose isomerase EC:5.3.1.9 protein which is similar to eukaryote homologues to the extent that the sequence includes the cluster of threonines and serines that forms the sugar phosphate-bindi ...	This is the C-terminal SIS domain of a bacterial phospho-glucose isomerase EC:5.3.1.9 protein which is similar to eukaryote homologues to the extent that the sequence includes the cluster of threonines and serines that forms the sugar phosphate-binding site in conventional PGI. This domain contributes a good proportion of the active catalytic site residues. This PGI uses the same catalytic mechanisms for both glucose ring-opening and isomerisation for the interconversion of glucose 6-phosphate to fructose 6-phosphate [1]. It is associated with family SIS, Pfam:PF01380.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	glucose-6-phosphate isomerase	isomerase activity intramolecular oxidoreductase activity, interconverting aldoses and ketoses intramolecular oxidoreductase activity mannose-6-phosphate isomerase activity catalytic activity glucose-6-phosphate isomerase activity binding carbohydrate derivative binding	carbohydrate metabolic process primary metabolic process metabolic process cellular process carbohydrate derivative metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR046348	SIS domain superfamily	Homologous Superfamily
A, B	IPR035484	Bifunctional phosphoglucose/phosphomannose isomerase, SIS domain 1	Domain
A, B	IPR019490	Bifunctional glucose-6-phosphate/mannose-6-phosphate isomerase, C-terminal	Domain
A, B	IPR001347	SIS domain	Domain

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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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.