Cryo-EM structure of the histamine-bound histamine H4 receptor and Gq complex
External Resource: Annotation
- Domain Annotation: SCOP2 Classification
- Domain Annotation: ECOD Classification
- SAbDab Antibody Annotation
- Protein Family Annotation
- Gene Ontology: Gene Product Annotation
- InterPro: Protein Family Classification
- Pharos: Disease Associations
- Membrane Protein Annotation: PDBTM
- Membrane Protein Annotation: mpstruc
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| D [auth G] | SCOP2B Superfamily | Transducin (heterotrimeric G protein), gamma chain | 8070798 | 3001771 | 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) |
|---|---|---|---|---|---|---|---|---|
| E [auth N] | e7yfcN1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: V-set | F: | ECOD (20:10:01) | |
| F [auth R] | e7yfcR1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: V-set | F: | ECOD (20:10:01) | |
| D [auth G] | e7yfcG1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: V-set | F: | ECOD (20:10:01) | |
| C | e7yfcC1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: V-set | F: | ECOD (20:10:01) | |
| B | e7yfcB1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: V-set | F: | ECOD (20:10:01) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| E [auth N] | Heavy Chain | IGHV3 | - | engineered g-alpha-q | guanine nucleotide-binding protein g(i)/g(s)/g(t) subunitbeta-1 | SAbDab (2026-03-13) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| F [auth R] | PF00001 | 7 transmembrane receptor (rhodopsin family) (7tm_1) | 7 transmembrane receptor (rhodopsin family) | This family contains, amongst other G-protein-coupled receptors (GCPRs), members of the opsin family, which have been considered to be typical members of the rhodopsin superfamily. They share several motifs, mainly the seven transmembrane helices, GC ... | Domain |
| D [auth G] | PF00631 | GGL domain (G-gamma) | GGL domain | G-protein gamma like domains (GGL) are found in the gamma subunit of the heterotrimeric G protein complex and in regulators of G protein signaling (RGS) proteins [1]. It is also found fused to an inactive Galpha in the Dictyostelium protein gbqA [2] ... | Domain |
| PF25391 | G protein beta WD-40 repeat protein (WD40_Gbeta) | G protein beta WD-40 repeat protein | - | Repeat | |
| 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 |
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: PDBTM PDBTM Database Homepage
| Chains | External Link | Comment |
|---|---|---|
| PDBTM | Annotated as membrane protein by PDBTM |
Membrane Protein Annotation: mpstruc mpstruc Database Homepage
| Chains | Resource Link | Group | Subgroup | Protein |
|---|---|---|---|---|
| mpstruc | TRANSMEMBRANE PROTEINS: ALPHA-HELICAL | G Protein-Coupled Receptors: Class A | Histamine H4 receptor-Gq complex with bound histamine |














