4MR8
Crystal structure of the extracellular domain of human GABA(B) receptor bound to the antagonist CGP35348
- PDB DOI: https://doi.org/10.2210/pdb4MR8/pdb
- Classification: SIGNALING PROTEIN/ANTAGONIST
- Organism(s): Homo sapiens
- Expression System: Spodoptera frugiperda
- Mutation(s): No 
- Membrane Protein: Yes  mpstruc
- Deposited: 2013-09-17 Released: 2013-12-11 
Experimental Data Snapshot
- Method: X-RAY DIFFRACTION
- Resolution: 2.15 Å
- R-Value Free: 0.223 
- R-Value Work: 0.209 
- R-Value Observed: 0.210 
This is version 2.1 of the entry. See complete history. 
Macromolecules
Find similar proteins by:
(by identity cutoff) | 3D Structure
Entity ID: 1 | |||||
---|---|---|---|---|---|
Molecule | Chains | Sequence Length | Organism | Details | Image |
Gamma-aminobutyric acid type B receptor subunit 1 | 420 | Homo sapiens | Mutation(s): 0  Gene Names: GABBR1, GPRC3A Membrane Entity: Yes  | ||
UniProt & NIH Common Fund Data Resources | |||||
Find proteins for Q9UBS5 (Homo sapiens) Explore Q9UBS5  Go to UniProtKB:  Q9UBS5 | |||||
PHAROS:  Q9UBS5 GTEx:  ENSG00000204681  | |||||
Entity Groups   | |||||
Sequence Clusters | 30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity | ||||
UniProt Group | Q9UBS5 | ||||
Sequence AnnotationsExpand | |||||
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Find similar proteins by:
(by identity cutoff) | 3D Structure
Entity ID: 2 | |||||
---|---|---|---|---|---|
Molecule | Chains | Sequence Length | Organism | Details | Image |
Gamma-aminobutyric acid type B receptor subunit 2 | 433 | Homo sapiens | Mutation(s): 0  Gene Names: GABBR2, GPR51, GPRC3B Membrane Entity: Yes  | ||
UniProt & NIH Common Fund Data Resources | |||||
Find proteins for O75899 (Homo sapiens) Explore O75899  Go to UniProtKB:  O75899 | |||||
PHAROS:  O75899 GTEx:  ENSG00000136928  | |||||
Entity Groups   | |||||
Sequence Clusters | 30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity | ||||
UniProt Group | O75899 | ||||
Sequence AnnotationsExpand | |||||
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Oligosaccharides
Entity ID: 3 | |||||
---|---|---|---|---|---|
Molecule | Chains | Length | 2D Diagram | Glycosylation | 3D Interactions |
beta-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose | C | 5 | N-Glycosylation | ||
Glycosylation Resources | |||||
GlyTouCan:  G51347YJ GlyCosmos:  G51347YJ GlyGen:  G51347YJ |
Small Molecules
Ligands 2 Unique | |||||
---|---|---|---|---|---|
ID | Chains | Name / Formula / InChI Key | 2D Diagram | 3D Interactions | |
2BW Query on 2BW | F [auth A] | (S)-(3-aminopropyl)(diethoxymethyl)phosphinic acid C8 H20 N O4 P QIIVUOWTHWIXFO-UHFFFAOYSA-N | |||
NAG Query on NAG | E [auth A] | 2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N |
Experimental Data & Validation
Experimental Data
- Method: X-RAY DIFFRACTION
- Resolution: 2.15 Å
- R-Value Free: 0.223 
- R-Value Work: 0.209 
- R-Value Observed: 0.210 
- Space Group: P 1 21 1
Unit Cell:
Length ( Å ) | Angle ( ˚ ) |
---|---|
a = 70.98 | α = 90 |
b = 112.75 | β = 97.8 |
c = 73.45 | γ = 90 |
Software Name | Purpose |
---|---|
SCALA | data scaling |
BUSTER-TNT | refinement |
PDB_EXTRACT | data extraction |
XDS | data scaling |
XDS | data reduction |
PHASER | phasing |
BUSTER | refinement |
Entry History 
Deposition Data
- Released Date: 2013-12-11  Deposition Author(s): Geng, Y., Bush, M., Mosyak, L., Wang, F., Fan, Q.R.
Revision History (Full details and data files)
- Version 1.0: 2013-12-11
Type: Initial release - Version 1.1: 2013-12-18
Changes: Database references - Version 1.2: 2014-02-05
Changes: Database references - Version 2.0: 2020-07-29
Type: Remediation
Reason: Carbohydrate remediation
Changes: Atomic model, Data collection, Database references, Derived calculations, Structure summary - Version 2.1: 2023-09-20
Changes: Data collection, Database references, Refinement description, Structure summary