Annotations: 8BBH

The crystal structure of a mouse Fab fragment TL1 in complex with a human Glucose-6-phosphate isomerase peptide 293-307

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth L]	Methyltransf_4	e8bbhL1	A: alpha arrays	X: cradle loop barrel	H: Cytochrome P450	T: Cytochrome P450	F: Methyltransf_4	ECOD (v295)
B [auth H]	Methyltransf_4	e8bbhH1	A: alpha arrays	X: cradle loop barrel	H: Cytochrome P450	T: Cytochrome P450	F: Methyltransf_4	ECOD (v295)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth L]	Light Chain	IGKV1	Kappa	glucose-6-phosphate isomerase	SAbDab (2026-06-26)
B [auth H]	Heavy Chain	IGHV9	-	glucose-6-phosphate isomerase	SAbDab (2026-06-26)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Glucose-6-phosphate isomerase	isomerase activity racemase and epimerase activity racemase and epimerase activity, acting on carbohydrates and derivatives catalytic activity molecular function activator activity molecular function regulator activity signaling receptor regulator activity growth factor activity receptor ligand activity signaling receptor activator activity intramolecular oxidoreductase activity, interconverting aldoses and ketoses intramolecular oxidoreductase activity glucose-6-phosphate isomerase activity binding isomerase activity racemase and epimerase activity racemase and epimerase activity, acting on carbohydrates and derivatives catalytic activity molecular function activator activity molecular function regulator activity signaling receptor regulator activity growth factor activity receptor ligand activity signaling receptor activator activity intramolecular oxidoreductase activity, interconverting aldoses and ketoses intramolecular oxidoreductase activity glucose-6-phosphate isomerase activity binding monosaccharide binding carbohydrate binding small molecule binding cytokine activity ubiquitin protein ligase binding protein binding ubiquitin-like protein ligase binding enzyme binding carbohydrate derivative binding glucose-6-phosphate 1-epimerase activity	organophosphate metabolic process fructose 6-phosphate metabolic process carbohydrate derivative metabolic process metabolic process cellular process phosphorus metabolic process regulation of body fluid levels hemostasis biological regulation regulation of biological quality positive regulation of locomotion regulation of biological process regulation of cell motility regulation of cellular process organophosphate metabolic process fructose 6-phosphate metabolic process carbohydrate derivative metabolic process metabolic process cellular process phosphorus metabolic process regulation of body fluid levels hemostasis biological regulation regulation of biological quality positive regulation of locomotion regulation of biological process regulation of cell motility regulation of cellular process endothelial cell migration positive regulation of biological process positive regulation of cell migration regulation of locomotion positive regulation of endothelial cell migration positive regulation of cell motility regulation of cell migration regulation of endothelial cell migration cell migration cell motility locomotion positive regulation of cellular process carbohydrate metabolic process primary metabolic process humoral immune response response to stimulus immune response immune system process response to ketone response to lipid response to hormone response to steroid hormone response to chemical response to endogenous stimulus response to progesterone response to oxygen-containing compound negative regulation of programmed cell death regulation of apoptotic process negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process apoptotic process programmed cell death response to testosterone glucose 6-phosphate metabolic process ribonucleotide catabolic process pyridine nucleotide catabolic process aerobic respiration oxoacid metabolic process carbohydrate catabolic process organophosphate catabolic process nucleoside phosphate catabolic process nucleobase-containing compound metabolic process glycolytic process pyridine-containing compound metabolic process small molecule metabolic process purine ribonucleotide catabolic process nucleoside phosphate metabolic process nicotinamide nucleotide metabolic process pyruvate metabolic process purine nucleoside diphosphate metabolic process purine-containing compound catabolic process nucleotide metabolic process nucleobase-containing compound catabolic process nucleoside diphosphate metabolic process purine nucleoside diphosphate catabolic process nucleoside diphosphate catabolic process nucleoside triphosphate metabolic process monocarboxylic acid metabolic process purine ribonucleotide metabolic process pyridine-containing compound catabolic process ribose phosphate metabolic process cellular respiration catabolic process ATP metabolic process energy derivation by oxidation of organic compounds purine nucleotide metabolic process ribonucleotide metabolic process nucleobase-containing small molecule metabolic process purine ribonucleoside triphosphate metabolic process ribonucleoside diphosphate metabolic process ribonucleoside diphosphate catabolic process nucleotide catabolic process purine nucleoside triphosphate metabolic process purine nucleotide catabolic process carbohydrate derivative catabolic process ADP catabolic process carboxylic acid metabolic process generation of precursor metabolites and energy purine-containing compound metabolic process ADP metabolic process purine ribonucleoside diphosphate metabolic process purine ribonucleoside diphosphate catabolic process regulation of immune effector process immunoglobulin production positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of biosynthetic process positive regulation of immune effector process regulation of immune system process positive regulation of macromolecule metabolic process positive regulation of immune system process positive regulation of immunoglobulin production regulation of biosynthetic process production of molecular mediator of immune response regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process immune effector process regulation of gene expression biosynthetic process regulation of immunoglobulin production positive regulation of gene expression positive regulation of production of molecular mediator of immune response regulation of macromolecule biosynthetic process regulation of production of molecular mediator of immune response macromolecule metabolic process regulation of metabolic process response to immobilization stress response to stress monosaccharide metabolic process small molecule biosynthetic process carbohydrate biosynthetic process hexose metabolic process monosaccharide biosynthetic process gluconeogenesis hexose biosynthetic process glucose metabolic process behavior multicellular organismal process system process learning or memory nervous system process cognition response to metal ion response to cadmium ion response to estradiol response to mechanical stimulus response to abiotic stimulus response to external stimulus response to muscle stretch	cellular anatomical structure membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol membrane-enclosed lumen cellular anatomical structure membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol membrane-enclosed lumen intracellular vesicle ficolin-1-rich granule intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen intracellular organelle organelle lumen cytoplasmic vesicle ficolin-1-rich granule lumen secretory granule secretory vesicle vesicle lumen cytoplasmic vesicle lumen secretory granule lumen
C [auth L]	Light Chain of TL1 Fab fragment	-	-	-
B [auth H]	Heavy Chain of TL1 Fab fragment	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR035476	Phosphoglucose isomerase, SIS domain 1	Domain
A	IPR018189	Phosphoglucose isomerase, conserved site	Conserved Site
A	IPR046348	SIS domain superfamily	Homologous Superfamily
A	IPR035482	Phosphoglucose isomerase, SIS domain 2	Domain
A	IPR001672	Phosphoglucose isomerase (PGI)	Family
A	IPR023096	Phosphoglucose isomerase, C-terminal	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	: P06744	hemolytic anemia hemolytic anemia due to glucophosphate isomerase deficiency familial hemolytic anemia breast cancer breast carcinoma oligodendroglioma plasma cell myeloma Anemia, Hemolytic astrocytic tumor congenital anemia lung adenocarcinoma ovarian cancer congenital nonspherocytic hemolytic anemia lung cancer non-small cell lung carcinoma hemolytic anemia hemolytic anemia due to glucophosphate isomerase deficiency familial hemolytic anemia breast cancer breast carcinoma oligodendroglioma plasma cell myeloma Anemia, Hemolytic astrocytic tumor congenital anemia lung adenocarcinoma ovarian cancer congenital nonspherocytic hemolytic anemia lung cancer non-small cell lung carcinoma Pick disease lymphoplasmacytic lymphoma

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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.