2vl0

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

Method: X-RAY DIFFRACTION

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

Cys-loop ligand-gated ion channel

Dickeya chrysanthemi

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 5	No other associated polymer	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 5	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ELIC_DICCH
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–321； UniProt 1–321 Author chain B； PDBConstruct 1–321； UniProt 1–321 Author chain C； PDBConstruct 1–321； UniProt 1–321 Author chain D； PDBConstruct 1–321； UniProt 1–321 Author chain E； PDBConstruct 1–321； UniProt 1–321 Author chain F； PDBConstruct 1–321； UniProt 1–321 Author chain G； PDBConstruct 1–321； UniProt 1–321 Author chain H； PDBConstruct 1–321； UniProt 1–321 Author chain I； PDBConstruct 1–321； UniProt 1–321 Author chain J； PDBConstruct 1–321； UniProt 1–321

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_id	2vl0
Deposition date deposition_date	2008-01-07
Structure title title	X-ray structure of a pentameric ligand gated ion channel from Erwinia chrysanthemi (ELIC)
Keywords keywords	PENTAMERIC LIGAND GATED ION CHANNEL, MEMBRANE PROTEIN, PROKARYOTIC CYS-LOOP RECEPTOR, CATION SELECTIVE CHANNEL; MEMBRANE PROTEIN
Experimental Method method	X-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.

2vl0__assembly_1__model_1

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

Download this curve (.dat)

2vl0__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2vl0__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	37.59 Å
Rg (electron density)	36.68 Å
Total Rg	37.27 Å
Atom count	12505
Residues	1530
Excluded volume	224340 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2vl0__assembly_1__model_1`	pentameric （5）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2vl0__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 (1)

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6. Fold Classification (SCOP + CATH) 20 domains

CATH v4.4 (20 domains)

Domain ID domain_id	2vl0A01
Class class	2 — Mainly Beta
Architecture architecture	70 — Distorted Sandwich
Topology topology	170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily	10 — Neurotransmitter-gated ion-channel ligand-binding domain

Domain ID domain_id	2vl0A02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	390 — Neurotransmitter-gated ion-channel transmembrane domain

Domain ID domain_id	2vl0B01
Class class	2 — Mainly Beta
Architecture architecture	70 — Distorted Sandwich
Topology topology	170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily	10 — Neurotransmitter-gated ion-channel ligand-binding domain

Domain ID domain_id	2vl0B02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	390 — Neurotransmitter-gated ion-channel transmembrane domain

Domain ID domain_id	2vl0C01
Class class	2 — Mainly Beta
Architecture architecture	70 — Distorted Sandwich
Topology topology	170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily	10 — Neurotransmitter-gated ion-channel ligand-binding domain

Domain ID domain_id	2vl0C02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	390 — Neurotransmitter-gated ion-channel transmembrane domain

Domain ID domain_id	2vl0D01
Class class	2 — Mainly Beta
Architecture architecture	70 — Distorted Sandwich
Topology topology	170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily	10 — Neurotransmitter-gated ion-channel ligand-binding domain

Domain ID domain_id	2vl0D02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	390 — Neurotransmitter-gated ion-channel transmembrane domain

Domain ID domain_id	2vl0E01
Class class	2 — Mainly Beta
Architecture architecture	70 — Distorted Sandwich
Topology topology	170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily	10 — Neurotransmitter-gated ion-channel ligand-binding domain

Domain ID domain_id	2vl0E02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	390 — Neurotransmitter-gated ion-channel transmembrane domain

Domain ID domain_id	2vl0F01
Class class	2 — Mainly Beta
Architecture architecture	70 — Distorted Sandwich
Topology topology	170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily	10 — Neurotransmitter-gated ion-channel ligand-binding domain

Domain ID domain_id	2vl0F02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	390 — Neurotransmitter-gated ion-channel transmembrane domain

Domain ID domain_id	2vl0G01
Class class	2 — Mainly Beta
Architecture architecture	70 — Distorted Sandwich
Topology topology	170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily	10 — Neurotransmitter-gated ion-channel ligand-binding domain

Domain ID domain_id	2vl0G02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	390 — Neurotransmitter-gated ion-channel transmembrane domain

Domain ID domain_id	2vl0H01
Class class	2 — Mainly Beta
Architecture architecture	70 — Distorted Sandwich
Topology topology	170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily	10 — Neurotransmitter-gated ion-channel ligand-binding domain

Domain ID domain_id	2vl0H02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	390 — Neurotransmitter-gated ion-channel transmembrane domain

Domain ID domain_id	2vl0I01
Class class	2 — Mainly Beta
Architecture architecture	70 — Distorted Sandwich
Topology topology	170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily	10 — Neurotransmitter-gated ion-channel ligand-binding domain

Domain ID domain_id	2vl0I02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	390 — Neurotransmitter-gated ion-channel transmembrane domain

Domain ID domain_id	2vl0J01
Class class	2 — Mainly Beta
Architecture architecture	70 — Distorted Sandwich
Topology topology	170 — Acetylcholine Binding Protein; Chain: A,
Homologous superfamily homologous superfamily	10 — Neurotransmitter-gated ion-channel ligand-binding domain

Domain ID domain_id	2vl0J02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	390 — Neurotransmitter-gated ion-channel transmembrane domain

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Unit-cell length a length_a	105.502 Å
Unit-cell length b length_b	266.147 Å
Unit-cell length c length_c	110.851 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	109.52 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	20

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	3.300 Å
Low-resolution limit resolution_low	29.930 Å
R factor r_factor	0.2630
R_work r_work	0.2630
R_free r_free	0.2740

Description description	Cys-loop ligand-gated ion channel
Molecular weight formula_weight	36821.9 kDa
Source method src_method	man
Copy count entity_count	10

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F,G,H,I,J
Atom count atom_count	25010

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

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

Cys-loop ligand-gated ion channel

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

2vl0__assembly_1__model_1

2vl0__assembly_1__model_1 | I(q)

2vl0__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 20 domains

CATH v4.4 (20 domains)

7. Citations (1)

Source organism organism	Dickeya chrysanthemi
Common name common_name	Pectobacterium chrysanthemi
NCBI taxonomy ID ncbi_taxonomy_id	556
Host organism host_organism	ESCHERICHIA COLI

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

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

Cys-loop ligand-gated ion channel

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

2vl0__assembly_1__model_1

2vl0__assembly_1__model_1 | I(q)

2vl0__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 20 domains

CATH v4.4 (20 domains)

7. Citations (1)