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

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
BSCOP2B SuperfamilySIS domain/Ribosomal protein S2-like 8052809 3001397 SCOP2B (2022-06-29)
BSCOP2B SuperfamilySIS domain/Ribosomal protein S2-like 8042433 3001397 SCOP2B (2022-06-29)
ASCOP2B SuperfamilySIS domain/Ribosomal protein S2-like 8042433 3001397 SCOP2B (2022-06-29)
ASCOP2B SuperfamilySIS domain/Ribosomal protein S2-like 8052809 3001397 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
BPGI_Ne1dqrB1 A: a/b three-layered sandwichesX: Flavodoxin-likeH: Ribosomal protein S2/SIS domain (From Topology)T: Ribosomal protein S2/SIS domainF: PGI_NECOD (1.6)
BPGI_Ce1dqrB2 A: a/b three-layered sandwichesX: Flavodoxin-likeH: Ribosomal protein S2/SIS domain (From Topology)T: Ribosomal protein S2/SIS domainF: PGI_CECOD (1.6)
APGI_Ne1dqrA1 A: a/b three-layered sandwichesX: Flavodoxin-likeH: Ribosomal protein S2/SIS domain (From Topology)T: Ribosomal protein S2/SIS domainF: PGI_NECOD (1.6)
APGI_Ce1dqrA2 A: a/b three-layered sandwichesX: Flavodoxin-likeH: Ribosomal protein S2/SIS domain (From Topology)T: Ribosomal protein S2/SIS domainF: PGI_CECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF00342Phosphoglucose isomerase (PGI)Phosphoglucose isomerasePhosphoglucose isomerase catalyses the interconversion of glucose-6-phosphate and fructose-6-phosphate.Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
PHOSPHOGLUCOSE ISOMERASE

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

ChainsEnzyme NameDescriptionCatalytic Residues
A, B
glucose-6-phosphate isomerase  M-CSA #842

Phosphoglucose isomerase (EC:5.3.1.9) (PGI) [PMID:1593646] is a dimeric enzyme that catalyses the reversible isomerisation of glucose-6-phosphate and fructose-6-phosphate. PGI is involved in different pathways: in most higher organisms it is involved in glycolysis; in mammals it is involved in gluconeogenesis; in plants in carbohydrate biosynthesis; in some bacteria it provides a gateway for fructose into the Entner-Doudouroff pathway. The multifunctional protein, PGI, is also known as neuroleukin (a neurotrophic factor that mediates the differentiation of neurons), autocrine motility factor (a tumour-secreted cytokine that regulates cell motility), differentiation and maturation mediator and myofibril-bound serine proteinase inhibitor, and has different roles inside and outside the cell. In the cytoplasm, it catalyses the second step in glycolysis, while outside the cell it serves as a nerve growth factor and cytokine [PMID:10653639].

Defined by 7 residues: LYS:A-210GLU:A-216GLY:A-271ARG:A-272GLU:A-357LYS:A-518HIS:B-388
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