6gl4

Structure of GluA2o ligand-binding domain (S1S2J) in complex with glutamate and sodium bromide at 1.95 A resolution

Method: X-RAY DIFFRACTION Dmax: 92.8 Å Quality: GOOD

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

Glutamate receptor 2,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 652–797 Not recorded GLU GLUTAMIC ACID × 2 BR BROMIDE ION × 6 GOL GLYCEROL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.5;279 K;25% PEG4000, 0.2M sodium sulfate, 0.1M sodium acetate pH 5.5 Resolution 1.95 Å R-free 0.199
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 413–527 Chain B; UniProt 652–797 Not recorded GLU GLUTAMIC ACID × 2 BR BROMIDE ION × 6 NA SODIUM ION × 4 ACT ACETATE ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.5;279 K;25% PEG4000, 0.2M sodium sulfate, 0.1M sodium acetate pH 5.5 Resolution 1.95 Å R-free 0.199

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 481 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GRIA2_RAT
Isoform P19491-3
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 3–117; UniProt 413–527 Author chain A; PDBConstruct 119–264; UniProt 652–797 Author chain B; PDBConstruct 3–117; UniProt 413–527 Author chain B; PDBConstruct 119–264; UniProt 652–797

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 6gl4

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6gl4
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6gl4
Deposition date deposition_date2018-05-22
Structure title titleStructure of GluA2o ligand-binding domain (S1S2J) in complex with glutamate and sodium bromide at 1.95 A resolution
Keywords keywordsIonotropic glutamate receptor, GluA2o ligand-binding domain, agonist, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier28.63
Radius of gyration Rg (electron density) rg_electron27.97
Forward intensity I(0) i057527000.00
Molecular weight molecular_weight59308.0 kDa
Excluded volume excluded_volume74290 ų
Envelope volume envelope_volume94558 ų
Hydration-shell volume shell_volume28928 ų
Envelope diameter envelope_diameter100.5
Shell Rg shell_rg34.49
Envelope Rg envelope_rg27.79
Shape Rg shape_rg27.92
Total Rg total_rg28.82
Total atoms total_atoms4128
Residues n_residues526
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 dmax92.8
Rg (real space) rg_real28.69
Rg uncertainty (real space) rg_real_error0.60
I(0) (real space) i0_real5.7530e+07
I(0) uncertainty (real space) i0_real_error7.3510e+05
Rg (reciprocal space) rg_reciprocal28.67
I(0) (reciprocal space) i0_reciprocal57530000.0000
Solution quality estimate total_estimate0.8919
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary28.7
Skewness Skewness skewness0.372
Kurtosis Kurtosis kurtosis-0.498
Angular range angular_range— – 0.2750 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha13080000.0000
Real-space data points n_real_points56
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.903; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.919; Smooth: 0.962

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd6gl4a1
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_idd6gl4a2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd6gl4b1
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_idd6gl4b2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (4 domains)

Domain ID domain_id6gl4A01
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_id6gl4A02
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_id6gl4B01
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_id6gl4B02
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 (1)

9. Files and Curves (10)