3kg2

AMPA subtype ionotropic glutamate receptor in complex with competitive antagonist ZK 200775

Method: X-RAY DIFFRACTION Dmax: 201.4 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 Other combination Homooligomer Protein × 4 其他Polymer 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 25–847 Chain B; UniProt 25–847 Chain C; UniProt 25–847 Chain D; UniProt 25–847 Fragment:sequence database residues 25-847 Mutation:N241E, N385D, N392Q, K410A, E413A, M414A, E416A, and C589A ;beta-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 2 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 2 ZK1 {[7-morpholin-4-yl-2,3-dioxo-6-(trifluoromethyl)-3,4-dihydroquinoxalin-1(2H)-yl]methyl}phosphonic acid × 4 X-RAY DIFFRACTION X-ray crystallization conditions:277 K;Under paraffin oil, temperature 277K Resolution 3.60 Å R-free 0.296

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 1–817; UniProt 25–847 Author chain B; PDBConstruct 1–817; UniProt 25–847 Author chain C; PDBConstruct 1–817; UniProt 25–847 Author chain D; PDBConstruct 1–817; UniProt 25–847

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 3kg2

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3kg2
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id3kg2
Deposition date deposition_date2009-10-28
Structure title titleAMPA subtype ionotropic glutamate receptor in complex with competitive antagonist ZK 200775
Keywords keywords;ion channel, membrane protein, Cell membrane, Glycoprotein, Ion transport, Membrane, Postsynaptic cell membrane, Receptor, RNA editing, Synapse, Transmembrane, Transport, tetramer, transport protein ;; membrane protein, transport protein
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier56.68
Radius of gyration Rg (electron density) rg_electron57.06
Forward intensity I(0) i01426510000.00
Molecular weight molecular_weight321290.0 kDa
Excluded volume excluded_volume402830 ų
Envelope volume envelope_volume614750 ų
Hydration-shell volume shell_volume91678 ų
Envelope diameter envelope_diameter193.2
Shell Rg shell_rg57.87
Envelope Rg envelope_rg55.74
Shape Rg shape_rg57.09
Total Rg total_rg56.99
Total atoms total_atoms22686
Residues n_residues3116
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 dmax201.4
Rg (real space) rg_real56.73
Rg uncertainty (real space) rg_real_error2.27
I(0) (real space) i0_real1.4270e+09
I(0) uncertainty (real space) i0_real_error3.2360e+07
Rg (reciprocal space) rg_reciprocal56.62
I(0) (reciprocal space) i0_reciprocal1426000000.0000
Solution quality estimate total_estimate0.8645
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary71.9
Skewness Skewness skewness0.329
Kurtosis Kurtosis kurtosis-0.324
Angular range angular_range— – 0.1400 −1
Current regularization parameter α current_alpha0.0001
Highest regularization parameter α highest_alpha104800000.0000
Real-space data points n_real_points29
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.794; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.990; Smooth: 0.860

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 32 domains

SCOP 2.08 (12 domains)

Domain ID domain_idd3kg2a1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.93 — Periplasmic binding protein-like I
Superfamily Superfamily superfamilyc.93.1 — Periplasmic binding protein-like I
Family Family familyc.93.1.1 — L-arabinose binding protein-like
Domain ID domain_idd3kg2a2
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_idd3kg2a3
Class classf — Membrane and cell surface proteins and peptides
Fold Fold foldf.14 — Gated ion channels
Superfamily Superfamily superfamilyf.14.2 — Ligand-gated ion channels
Family Family familyf.14.2.1 — Ionotropic glutamate receptor 2 (GluR2) ligand channel domain
Domain ID domain_idd3kg2b1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.93 — Periplasmic binding protein-like I
Superfamily Superfamily superfamilyc.93.1 — Periplasmic binding protein-like I
Family Family familyc.93.1.1 — L-arabinose binding protein-like
Domain ID domain_idd3kg2b2
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_idd3kg2b3
Class classf — Membrane and cell surface proteins and peptides
Fold Fold foldf.14 — Gated ion channels
Superfamily Superfamily superfamilyf.14.2 — Ligand-gated ion channels
Family Family familyf.14.2.1 — Ionotropic glutamate receptor 2 (GluR2) ligand channel domain
Domain ID domain_idd3kg2c1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.93 — Periplasmic binding protein-like I
Superfamily Superfamily superfamilyc.93.1 — Periplasmic binding protein-like I
Family Family familyc.93.1.1 — L-arabinose binding protein-like
Domain ID domain_idd3kg2c2
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_idd3kg2c3
Class classf — Membrane and cell surface proteins and peptides
Fold Fold foldf.14 — Gated ion channels
Superfamily Superfamily superfamilyf.14.2 — Ligand-gated ion channels
Family Family familyf.14.2.1 — Ionotropic glutamate receptor 2 (GluR2) ligand channel domain
Domain ID domain_idd3kg2d1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.93 — Periplasmic binding protein-like I
Superfamily Superfamily superfamilyc.93.1 — Periplasmic binding protein-like I
Family Family familyc.93.1.1 — L-arabinose binding protein-like
Domain ID domain_idd3kg2d2
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_idd3kg2d3
Class classf — Membrane and cell surface proteins and peptides
Fold Fold foldf.14 — Gated ion channels
Superfamily Superfamily superfamilyf.14.2 — Ligand-gated ion channels
Family Family familyf.14.2.1 — Ionotropic glutamate receptor 2 (GluR2) ligand channel domain

CATH v4.4 (20 domains)

Domain ID domain_id3kg2A01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily2300 — Response regulator
Domain ID domain_id3kg2A02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily2300 — Response regulator
Domain ID domain_id3kg2A03
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_id3kg2A04
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_id3kg2A05
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology287 — Helix Hairpins
Homologous superfamily homologous superfamily70
Domain ID domain_id3kg2B01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily2300 — Response regulator
Domain ID domain_id3kg2B02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily2300 — Response regulator
Domain ID domain_id3kg2B03
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_id3kg2B04
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_id3kg2B05
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology287 — Helix Hairpins
Homologous superfamily homologous superfamily70
Domain ID domain_id3kg2C01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily2300 — Response regulator
Domain ID domain_id3kg2C02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily2300 — Response regulator
Domain ID domain_id3kg2C03
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_id3kg2C04
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_id3kg2C05
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology287 — Helix Hairpins
Homologous superfamily homologous superfamily70
Domain ID domain_id3kg2D01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily2300 — Response regulator
Domain ID domain_id3kg2D02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily2300 — Response regulator
Domain ID domain_id3kg2D03
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_id3kg2D04
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_id3kg2D05
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology287 — Helix Hairpins
Homologous superfamily homologous superfamily70

8. Citations (1)

9. Files and Curves (10)