1mqi

Crystal Structure of the GluR2 Ligand Binding Core (S1S2J) in Complex with Fluoro-Willardiine at 1.35 Angstroms Resolution

Method: X-RAY DIFFRACTION Dmax: 62.9 Å Quality: GOOD

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 core (S1S2J) FWD 2-AMINO-3-(5-FLUORO-2,4-DIOXO-3,4-DIHYDRO-2H-PYRIMIDIN-1-YL)-PROPIONIC ACID × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.5;277 K;PEG 8K, NaCl, Na Citrate, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K Resolution 1.35 Å R-free 0.218

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 482 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

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 1mqi

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1mqi
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1mqi
Deposition date deposition_date2002-09-16
Structure title titleCrystal Structure of the GluR2 Ligand Binding Core (S1S2J) in Complex with Fluoro-Willardiine at 1.35 Angstroms Resolution
Keywords keywords;ionotropic glutamate receptor, GluR2, ligand binding core, S1S2, partial agonist, willardiines, fluoro-willardiine, 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_guinier19.64
Radius of gyration Rg (electron density) rg_electron18.55
Forward intensity I(0) i014329200.00
Molecular weight molecular_weight28613.0 kDa
Excluded volume excluded_volume35935 ų
Envelope volume envelope_volume41193 ų
Hydration-shell volume shell_volume18562 ų
Envelope diameter envelope_diameter64.5
Shell Rg shell_rg24.73
Envelope Rg envelope_rg18.90
Shape Rg shape_rg18.53
Total Rg total_rg19.55
Total atoms total_atoms2007
Residues n_residues260
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 dmax62.9
Rg (real space) rg_real19.55
Rg uncertainty (real space) rg_real_error0.43
I(0) (real space) i0_real1.4330e+07
I(0) uncertainty (real space) i0_real_error1.7510e+05
Rg (reciprocal space) rg_reciprocal19.56
I(0) (reciprocal space) i0_reciprocal14330000.0000
Solution quality estimate total_estimate0.8171
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary23.9
Skewness Skewness skewness0.226
Kurtosis Kurtosis kurtosis-0.409
Angular range angular_range— – 0.4050 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3120000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.873; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1mqia_
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

CATH v4.4 (2 domains)

Domain ID domain_id1mqiA01
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_id1mqiA02
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)