1p1u

Crystal structure of the GluR2 ligand-binding core (S1S2J) L650T mutant in complex with AMPA (ammonium sulfate crystal form)

Method: X-RAY DIFFRACTION Dmax: 76.8 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 Chain B; UniProt 413–527 Chain B; UniProt 653–796 Fragment:ligand binding core (S1S2J) Mutation:L138T SO4 SULFATE ION × 1 AMQ (S)-ALPHA-AMINO-3-HYDROXY-5-METHYL-4-ISOXAZOLEPROPIONIC ACID × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;277 K;PEG4000, ammonium sulfate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K Resolution 2.00 Å R-free 0.271

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 Author chain B; PDBConstruct 3–117; UniProt 413–527 Author chain B; 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 1p1u

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1p1u
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1p1u
Deposition date deposition_date2003-04-14
Structure title titleCrystal structure of the GluR2 ligand-binding core (S1S2J) L650T mutant in complex with AMPA (ammonium sulfate crystal form)
Keywords keywordsionotropic glutamate receptor, AMPA receptor, ion channel, ligand-binding domain, 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_guinier24.76
Radius of gyration Rg (electron density) rg_electron23.56
Forward intensity I(0) i050442600.00
Molecular weight molecular_weight55517.0 kDa
Excluded volume excluded_volume69631 ų
Envelope volume envelope_volume82104 ų
Hydration-shell volume shell_volume28512 ų
Envelope diameter envelope_diameter79.8
Shell Rg shell_rg31.31
Envelope Rg envelope_rg23.56
Shape Rg shape_rg23.56
Total Rg total_rg24.47
Total atoms total_atoms3897
Residues n_residues516
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 dmax76.8
Rg (real space) rg_real24.59
Rg uncertainty (real space) rg_real_error0.46
I(0) (real space) i0_real5.0440e+07
I(0) uncertainty (real space) i0_real_error6.3030e+05
Rg (reciprocal space) rg_reciprocal24.63
I(0) (reciprocal space) i0_reciprocal50440000.0000
Solution quality estimate total_estimate0.9064
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary32.9
Skewness Skewness skewness0.117
Kurtosis Kurtosis kurtosis-0.529
Angular range angular_range— – 0.3200 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha11720000.0000
Real-space data points n_real_points64
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.929; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.996; Smooth: 0.996

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1p1ua_
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_idd1p1ub_
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 (4 domains)

Domain ID domain_id1p1uA01
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_id1p1uA02
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_id1p1uB01
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_id1p1uB02
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)