4L6R

Structure of the class B human glucagon G protein coupled receptor

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
Pharos: Disease Associations
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: mpstruc

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d4l6ra1	All alpha proteins	Four-helical up-and-down bundle	Cytochromes	Cytochrome b562	Cytochrome b562	human (Escherichia coli ) [TaxId: 562 ], human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Cytochromes	8057879	3001526	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	G protein-coupled receptor-like	8091138	3000473	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	G protein-coupled receptor-like	8091138	3000473	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	7tm_2	e4l6rA2	A: alpha bundles	X: Family A G protein-coupled receptor-like (From Topology)	H: Family A G protein-coupled receptor-like (From Topology)	T: Family A G protein-coupled receptor-like	F: 7tm_2	ECOD (1.6)
A	Cytochrom_B562_1	e4l6rA3	A: alpha bundles	X: Four-helical up-and-down bundle	H: Cytochromes (From Topology)	T: Cytochromes	F: Cytochrom_B562_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.120.10	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	Cytochrome c/b562	CATH (4.3.0)
A	1.20.1070.10	Mainly Alpha	Up-down Bundle	Rhopdopsin 7-helix transmembrane proteins	Rhodopsin 7-helix transmembrane proteins	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF07361	Cytochrome b562 (Cytochrom_B562)	Cytochrome b562	-	Family
A	PF00002	7 transmembrane receptor (Secretin family) (7tm_2)	7 transmembrane receptor (Secretin family)	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Soluble cytochrome b562 and Glucagon receptor chimera	binding organic cyclic compound binding tetrapyrrole binding heme binding electron transfer activity cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding glucagon receptor activity peptide receptor activity molecular transducer activity binding organic cyclic compound binding tetrapyrrole binding heme binding electron transfer activity cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding glucagon receptor activity peptide receptor activity molecular transducer activity G protein-coupled receptor activity G protein-coupled peptide receptor activity transmembrane signaling receptor activity signaling receptor activity amide binding peptide hormone binding hormone binding GTPase regulator activity enzyme regulator activity guanyl-nucleotide exchange factor activity nucleoside-triphosphatase regulator activity molecular function regulator activity	electron transport chain metabolic process cellular process generation of precursor metabolites and energy multicellular organismal process system process circulatory system process regulation of blood pressure biological regulation regulation of biological quality blood circulation regulation of biosynthetic process regulation of biological process regulation of cellular process electron transport chain metabolic process cellular process generation of precursor metabolites and energy multicellular organismal process system process circulatory system process regulation of blood pressure biological regulation regulation of biological quality blood circulation regulation of biosynthetic process regulation of biological process regulation of cellular process positive regulation of biological process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process positive regulation of macromolecule biosynthetic process regulation of gene expression positive regulation of metabolic process biosynthetic process positive regulation of gene expression positive regulation of biosynthetic process regulation of macromolecule biosynthetic process positive regulation of macromolecule metabolic process macromolecule metabolic process regulation of metabolic process positive regulation of cellular process cellular response to stimulus response to stimulus signaling response to endogenous stimulus hormone-mediated signaling pathway cell communication cellular response to endogenous stimulus cellular response to chemical stimulus response to hormone response to chemical signal transduction cellular response to hormone stimulus cellular response to nitrogen compound response to peptide hormone cellular response to peptide hormone stimulus response to oxygen-containing compound response to nitrogen compound response to glucagon cellular response to oxygen-containing compound cellular response to glucagon stimulus carbohydrate metabolic process energy derivation by oxidation of organic compounds glycogen metabolic process primary metabolic process regulation of generation of precursor metabolites and energy regulation of polysaccharide metabolic process regulation of primary metabolic process glucan metabolic process polysaccharide metabolic process energy reserve metabolic process regulation of glycogen metabolic process regulation of carbohydrate metabolic process adenylate cyclase-modulating G protein-coupled receptor signaling pathway G protein-coupled receptor signaling pathway adenylate cyclase-activating G protein-coupled receptor signaling pathway cellular response to nutrient levels response to nutrient levels cellular response to stress response to stress response to starvation cellular response to starvation cell surface receptor signaling pathway response to nutrient localization secretion by cell exocytosis transport secretion export from cell establishment of localization vesicle-mediated transport chemical homeostasis homeostatic process glucose homeostasis carbohydrate homeostasis	cellular anatomical structure periplasmic space membrane cell periphery plasma membrane membrane-bounded organelle intracellular anatomical structure endosome intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle cellular anatomical structure periplasmic space membrane cell periphery plasma membrane membrane-bounded organelle intracellular anatomical structure endosome intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle cytoplasm vesicle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR010980	Cytochrome c/b562	Homologous Superfamily
A	IPR009155	Cytochrome b562	Family
A	IPR017983	GPCR, family 2, secretin-like, conserved site	Conserved Site
A	IPR050332	G-protein coupled receptor 2	Family
A	IPR003290	GPCR, family 2, glucagon-like peptide-1/glucagon receptor	Family
A	IPR036445	GPCR family 2, extracellular hormone receptor domain superfamily	Homologous Superfamily
A	IPR000832	GPCR, family 2, secretin-like	Family
A	IPR017981	GPCR, family 2-like, 7TM	Domain
A	IPR001879	GPCR, family 2, extracellular hormone receptor domain	Domain
A	IPR003291	GPCR, family 2, glucagon receptor	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P47871	type 2 diabetes mellitus acquired metabolic disease diabetes mellitus hypoglycemia Severe hypoglycaemia in patients with diabetes ACTH-independent macronodular adrenal hyperplasia 1 Cushing syndrome due to macronodular adrenal hyperplasia maturity-onset diabetes of the young

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A	OPM	Transmembrane	Alpha-helical polytopic	Rhodopsin-like receptors and pumps	GPCR Secretin (B) family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	G Protein-Coupled Receptors: Class B1	glucagon receptor (GCGR)

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.