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3uq4

X-ray structure of a pentameric ligand gated ion channel from Erwinia chrysanthemi (ELIC) mutant F247L (F16L)

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Gamma-aminobutyric-acid receptor subunit beta-1

Erwinia chrysanthemi

UniProt E0SJQ4

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 5 SODIUM ION × 1 Consistent with protein count
2 Protein homooligomer Homooligomer Protein 5 SODIUM ION × 1 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers
2yn6 3rqu 3rqu 3rqw 3rqw 3uq4 3uq4 3uq5 3uq5 3uq7 3uq7 4z90

49 assemblies; showing the first 12

Heteromeric or nucleic-acid complex
6cdu 6cdu 6d1s 6d1s

4 assemblies

View Construct and Data Evidence
UniProt name E0SJQ4_DICD3
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 3–324； UniProt 22–343 Author chain B； PDBConstruct 3–324； UniProt 22–343 Author chain C； PDBConstruct 3–324； UniProt 22–343 Author chain D； PDBConstruct 3–324； UniProt 22–343 Author chain E； PDBConstruct 3–324； UniProt 22–343 Author chain F； PDBConstruct 3–324； UniProt 22–343 Author chain G； PDBConstruct 3–324； UniProt 22–343 Author chain H； PDBConstruct 3–324； UniProt 22–343 Author chain I； PDBConstruct 3–324； UniProt 22–343 Author chain J； PDBConstruct 3–324； UniProt 22–343

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.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id3uq4
Deposition date deposition_date2011-11-19
Structure title titleX-ray structure of a pentameric ligand gated ion channel from Erwinia chrysanthemi (ELIC) mutant F247L (F16L)
Keywords keywordsmembrane protein, liganded-gated ion channel, TRANSPORT PROTEIN; TRANSPORT PROTEIN
Experimental Method methodX-RAY DIFFRACTION
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

3uq4__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

3uq4__assembly_2__model_1 | I(q)

10-2 10-1 106 107 108 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

3uq4__assembly_2__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）37.66 Å
Rg (electron density)36.70 Å
Total Rg37.27 Å
Atom count12511
Residues1535
Excluded volume224490 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3uq4__assembly_1__model_1 pentameric （5） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 3uq4__assembly_2__model_1 pentameric （5） Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (2)

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6. Fold Classification (SCOP + CATH) 20 domains

CATH v4.4 (20 domains)

Domain ID domain_id3uq4A01
Class class2 — Mainly Beta
Architecture architecture70 — Distorted Sandwich
Topology topology170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily10 — Neurotransmitter-gated ion-channel ligand-binding domain
Domain ID domain_id3uq4A02
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily390 — Neurotransmitter-gated ion-channel transmembrane domain
Domain ID domain_id3uq4B01
Class class2 — Mainly Beta
Architecture architecture70 — Distorted Sandwich
Topology topology170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily10 — Neurotransmitter-gated ion-channel ligand-binding domain
Domain ID domain_id3uq4B02
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily390 — Neurotransmitter-gated ion-channel transmembrane domain
Domain ID domain_id3uq4C01
Class class2 — Mainly Beta
Architecture architecture70 — Distorted Sandwich
Topology topology170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily10 — Neurotransmitter-gated ion-channel ligand-binding domain
Domain ID domain_id3uq4C02
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily390 — Neurotransmitter-gated ion-channel transmembrane domain
Domain ID domain_id3uq4D01
Class class2 — Mainly Beta
Architecture architecture70 — Distorted Sandwich
Topology topology170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily10 — Neurotransmitter-gated ion-channel ligand-binding domain
Domain ID domain_id3uq4D02
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily390 — Neurotransmitter-gated ion-channel transmembrane domain
Domain ID domain_id3uq4E01
Class class2 — Mainly Beta
Architecture architecture70 — Distorted Sandwich
Topology topology170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily10 — Neurotransmitter-gated ion-channel ligand-binding domain
Domain ID domain_id3uq4E02
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily390 — Neurotransmitter-gated ion-channel transmembrane domain
Domain ID domain_id3uq4F01
Class class2 — Mainly Beta
Architecture architecture70 — Distorted Sandwich
Topology topology170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily10 — Neurotransmitter-gated ion-channel ligand-binding domain
Domain ID domain_id3uq4F02
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily390 — Neurotransmitter-gated ion-channel transmembrane domain
Domain ID domain_id3uq4G01
Class class2 — Mainly Beta
Architecture architecture70 — Distorted Sandwich
Topology topology170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily10 — Neurotransmitter-gated ion-channel ligand-binding domain
Domain ID domain_id3uq4G02
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily390 — Neurotransmitter-gated ion-channel transmembrane domain
Domain ID domain_id3uq4H01
Class class2 — Mainly Beta
Architecture architecture70 — Distorted Sandwich
Topology topology170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily10 — Neurotransmitter-gated ion-channel ligand-binding domain
Domain ID domain_id3uq4H02
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily390 — Neurotransmitter-gated ion-channel transmembrane domain
Domain ID domain_id3uq4I01
Class class2 — Mainly Beta
Architecture architecture70 — Distorted Sandwich
Topology topology170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily10 — Neurotransmitter-gated ion-channel ligand-binding domain
Domain ID domain_id3uq4I02
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily390 — Neurotransmitter-gated ion-channel transmembrane domain
Domain ID domain_id3uq4J01
Class class2 — Mainly Beta
Architecture architecture70 — Distorted Sandwich
Topology topology170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily10 — Neurotransmitter-gated ion-channel ligand-binding domain
Domain ID domain_id3uq4J02
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily390 — Neurotransmitter-gated ion-channel transmembrane domain
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7. Citations (1)