Cryo-EM structure of Gi-bound metabotropic glutamate receptor mGlu2
External Resource: Annotation
- Domain Annotation: SCOP2 Classification
- Domain Annotation: ECOD Classification
- Domain Annotation: CATH
- SAbDab Antibody Annotation
- 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: MemProtMD
- Membrane Protein Annotation: mpstruc
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| C [auth A] | SCOP2B Superfamily | Ras-like P-loop GTPases | 8056779 | 3002022 | SCOP2B (2022-06-29) |
| B [auth S] | SCOP2B Superfamily | Type 1 solute binding protein-like | 8078799 | 3000125 | SCOP2B (2022-06-29) |
| A [auth R] | SCOP2B Superfamily | Type 1 solute binding protein-like | 8078799 | 3000125 | 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) |
|---|---|---|---|---|---|---|---|---|
| H [auth F] | V-set_8 | e7e9gF1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_8 | ECOD (1.6) |
| G [auth E] | V-set_8 | e7e9gE1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_8 | ECOD (1.6) |
| F [auth D] | V-set | e7e9gD2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set | ECOD (1.6) |
| F [auth D] | V-set_12 | e7e9gD1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_12 | ECOD (1.6) |
| E [auth C] | G-gamma | e7e9gC1 | A: extended segments | X: Transducin (heterotrimeric G protein), gamma chain (From Topology) | H: Transducin (heterotrimeric G protein), gamma chain (From Topology) | T: Transducin (heterotrimeric G protein), gamma chain | F: G-gamma | ECOD (1.6) |
| D [auth B] | ANAPC4_WD40_3 | e7e9gB1 | A: beta duplicates or obligate multimers | X: beta-propeller-like | H: beta-propeller | T: 7-bladed | F: ANAPC4_WD40_3 | ECOD (1.6) |
| C [auth A] | Ras | e7e9gA1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: Ras | ECOD (1.6) |
| B [auth S] | 7tm_3 | e7e9gS1 | 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_3 | ECOD (1.6) |
| B [auth S] | ANF_receptor_2nd_1 | e7e9gS2 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Periplasmic binding protein-like I | F: ANF_receptor_2nd_1 | ECOD (1.6) |
| B [auth S] | NCD3G | e7e9gS4 | A: few secondary structure elements | X: EGF-like | H: EGF-related | T: TNF receptor-like | F: NCD3G | ECOD (1.6) |
| A [auth R] | 7tm_3 | e7e9gR2 | 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_3 | ECOD (1.6) |
| A [auth R] | ANF_receptor_2nd_1 | e7e9gR3 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Periplasmic binding protein-like I | F: ANF_receptor_2nd_1 | ECOD (1.6) |
| A [auth R] | NCD3G | e7e9gR1 | A: few secondary structure elements | X: EGF-like | H: EGF-related | T: EGF/Laminin | F: NCD3G | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| H [auth F] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| G [auth E] | 2.60.40.10 | Mainly Beta | Sandwich | Immunoglobulin-like | Immunoglobulins | CATH (utative) |
| B [auth S] | 3.40.50.2300 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | Response regulator | CATH (utative) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| G [auth E], H [auth F] | Heavy Chain | IGHV1 | - | metabotropic glutamate receptor 2 | SAbDab (2025-11-28) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| D [auth B] | PF00400 | WD domain, G-beta repeat (WD40) | WD domain, G-beta repeat | - | Repeat |
| C [auth A] | PF00503 | G-protein alpha subunit (G-alpha) | G-protein alpha subunit | G proteins couple receptors of extracellular signals to intracellular signaling pathways. The G protein alpha subunit binds guanyl nucleotide and is a weak GTPase. A set of residues that are unique to G-alpha as compared to its ancestor the Arf-like ... | Domain |
| A [auth R], B [auth S] | PF01094 | Receptor family ligand binding region (ANF_receptor) | Receptor family ligand binding region | This family includes extracellular ligand binding domains of a wide range of receptors. This family also includes the bacterial amino acid binding proteins of known structure. | Domain |
| A [auth R], B [auth S] | PF07562 | Nine Cysteines Domain of family 3 GPCR (NCD3G) | Nine Cysteines Domain of family 3 GPCR | - | Family |
| A [auth R], B [auth S] | PF00003 | 7 transmembrane sweet-taste receptor of 3 GCPR (7tm_3) | 7 transmembrane sweet-taste receptor of 3 GCPR | This is a domain of seven transmembrane regions that forms the C-terminus of some subclass 3 G-coupled-protein receptors. It is often associated with a downstream cysteine-rich linker domain, NCD3G Pfam:PF07562, which is the human sweet-taste recepto ... | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
Pharos: Disease Associations Pharos Homepage Annotation
Membrane Protein Annotation: OPM OPM Database Homepage
| Chains | External Link | Type | Class | Superfamily | Family |
|---|---|---|---|---|---|
| OPM | Transmembrane | Alpha-helical polytopic | Rhodopsin-like receptors and pumps | GPCR Metabotropic glutamate receptor (C) family |
Membrane Protein Annotation: PDBTM PDBTM Database Homepage
| Chains | External Link | Comment |
|---|---|---|
| PDBTM | Annotated as membrane protein by PDBTM |
Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage
| Chains | External Link | Comment |
|---|---|---|
| MemProtMD | Annotated as membrane protein by MemProtMD |
Membrane Protein Annotation: mpstruc mpstruc Database Homepage
| Chains | Resource Link | Group | Subgroup | Protein |
|---|---|---|---|---|
| mpstruc | TRANSMEMBRANE PROTEINS: ALPHA-HELICAL | G Protein-Coupled Receptors: Class C | Metabotropic Glutamate Receptor 2 (mGlu2) with bound Gi |














