4o3a

Crystal structure of the glua2 ligand-binding domain in complex with L-aspartate at 1.80 a resolution

Method: X-RAY DIFFRACTION Dmax: 93.1 Å Quality: EXCELLENT

1. Protein Identity and Related Structures Protein Identity & Related Structures

Glutamate receptor 2

Rattus norvegicus

UniProt P19491

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 413–527 Chain A; UniProt 653–796 Fragment:Ligand binding domain (unp residues 413-527 and unp residues 653-736) GOL GLYCEROL × 12 ASP ASPARTIC ACID × 2 ZN ZINC ION × 6 ACT ACETATE ION × 6 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.5;279 K;24.4 % PEG 4000, 0.1 M zinc acetate and 0.1 M sodium acetate., pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 279K Resolution 1.80 Å R-free 0.188
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 413–527 Chain B; UniProt 653–796 Fragment:Ligand binding domain (unp residues 413-527 and unp residues 653-736) GOL GLYCEROL × 4 ASP ASPARTIC ACID × 1 ZN ZINC ION × 2 ACT ACETATE ION × 1 PEG DI(HYDROXYETHYL)ETHER × 3 CL CHLORIDE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.5;279 K;24.4 % PEG 4000, 0.1 M zinc acetate and 0.1 M sodium acetate., pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 279K Resolution 1.80 Å R-free 0.188
3 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 413–527 Chain C; UniProt 653–796 Fragment:Ligand binding domain (unp residues 413-527 and unp residues 653-736) GOL GLYCEROL × 2 ASP ASPARTIC ACID × 1 ZN ZINC ION × 4 ACT ACETATE ION × 6 PEG DI(HYDROXYETHYL)ETHER × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.5;279 K;24.4 % PEG 4000, 0.1 M zinc acetate and 0.1 M sodium acetate., pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 279K Resolution 1.80 Å R-free 0.188

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

333 other PDB entries and 480 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GRIA2_RAT
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 3–117; UniProt 413–527 Author chain A; PDBConstruct 120–263; UniProt 653–796 Author chain B; PDBConstruct 3–117; UniProt 413–527 Author chain B; PDBConstruct 120–263; UniProt 653–796 Author chain C; PDBConstruct 3–117; UniProt 413–527 Author chain C; PDBConstruct 120–263; UniProt 653–796

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 4o3a

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4o3a
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4o3a
Deposition date deposition_date2013-12-18
Structure title titleCrystal structure of the glua2 ligand-binding domain in complex with L-aspartate at 1.80 a resolution
Keywords keywordsAMPA RECEPTOR LIGAND-BINDING DOMAIN, MEMBRANE PROTEIN-AGONIST complex; MEMBRANE PROTEIN/AGONIST
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier31.04
Radius of gyration Rg (electron density) rg_electron30.21
Forward intensity I(0) i0129750000.00
Molecular weight molecular_weight90435.0 kDa
Excluded volume excluded_volume113430 ų
Envelope volume envelope_volume146810 ų
Hydration-shell volume shell_volume40110 ų
Envelope diameter envelope_diameter99.2
Shell Rg shell_rg37.68
Envelope Rg envelope_rg29.70
Shape Rg shape_rg30.20
Total Rg total_rg30.95
Total atoms total_atoms6297
Residues n_residues786
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax93.1
Rg (real space) rg_real30.87
Rg uncertainty (real space) rg_real_error0.47
I(0) (real space) i0_real1.2970e+08
I(0) uncertainty (real space) i0_real_error1.7130e+06
Rg (reciprocal space) rg_reciprocal30.95
I(0) (reciprocal space) i0_reciprocal129800000.0000
Solution quality estimate total_estimate0.9080
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary91.3
Skewness Skewness skewness0.110
Kurtosis Kurtosis kurtosis-0.589
Angular range angular_range— – 0.2550 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha27170000.0000
Real-space data points n_real_points52
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.973; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.883

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (8)

7. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

Domain ID domain_idd4o3aa1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.94 — Periplasmic binding protein-like II
Superfamily Superfamily superfamilyc.94.1 — Periplasmic binding protein-like II
Family Family familyc.94.1.1 — Phosphate binding protein-like
Domain ID domain_idd4o3aa2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd4o3ab1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.94 — Periplasmic binding protein-like II
Superfamily Superfamily superfamilyc.94.1 — Periplasmic binding protein-like II
Family Family familyc.94.1.1 — Phosphate binding protein-like
Domain ID domain_idd4o3ab2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd4o3ac1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.94 — Periplasmic binding protein-like II
Superfamily Superfamily superfamilyc.94.1 — Periplasmic binding protein-like II
Family Family familyc.94.1.1 — Phosphate binding protein-like
Domain ID domain_idd4o3ac2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (6 domains)

Domain ID domain_id4o3aA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II
Domain ID domain_id4o3aA02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II
Domain ID domain_id4o3aB01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II
Domain ID domain_id4o3aB02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II
Domain ID domain_id4o3aC01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II
Domain ID domain_id4o3aC02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II

8. Citations (2)

9. Files and Curves (10)