3lsv

Structure of the A237F mutant of the pentameric ligand gated ion channel from Gloeobacter Violaceus

Method: X-RAY DIFFRACTION Dmax: 122.8 Å Quality: REASONABLE

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

Ligand-gated ion channel

Gloeobacter violaceus

UniProt Q7NDN8

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 × 5 PDB declaration: pentameric(5) Consistent with protein copy count Chain A; UniProt 44–359 Chain B; UniProt 44–359 Chain C; UniProt 44–359 Chain D; UniProt 44–359 Chain E; UniProt 44–359 Mutation:A279F No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4;293 K;PEG 4000 ~25%, NaSCN ~400 mM, NaAc ph 4 100 mM, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 3.15 Å R-free 0.224

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.

129 other PDB entries and 135 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name Q7NDN8_GLOVI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–317; UniProt 44–359 Author chain B; PDBConstruct 2–317; UniProt 44–359 Author chain C; PDBConstruct 2–317; UniProt 44–359 Author chain D; PDBConstruct 2–317; UniProt 44–359 Author chain E; PDBConstruct 2–317; UniProt 44–359

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 3lsv

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3lsv
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3lsv
Deposition date deposition_date2010-02-13
Structure title titleStructure of the A237F mutant of the pentameric ligand gated ion channel from Gloeobacter Violaceus
Keywords keywordspLGIC, channel, cys-loop, membrane protein, 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_guinier37.90
Radius of gyration Rg (electron density) rg_electron37.09
Forward intensity I(0) i0398902000.00
Molecular weight molecular_weight178320.0 kDa
Excluded volume excluded_volume229360 ų
Envelope volume envelope_volume287340 ų
Hydration-shell volume shell_volume63397 ų
Envelope diameter envelope_diameter126.3
Shell Rg shell_rg44.54
Envelope Rg envelope_rg36.71
Shape Rg shape_rg37.06
Total Rg total_rg37.68
Total atoms total_atoms12655
Residues n_residues1555
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 dmax122.8
Rg (real space) rg_real37.81
Rg uncertainty (real space) rg_real_error1.10
I(0) (real space) i0_real3.9890e+08
I(0) uncertainty (real space) i0_real_error6.9490e+06
Rg (reciprocal space) rg_reciprocal37.87
I(0) (reciprocal space) i0_reciprocal398900000.0000
Solution quality estimate total_estimate0.6660
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary46.8
Skewness Skewness skewness0.320
Kurtosis Kurtosis kurtosis-0.292
Angular range angular_range— – 0.2100 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha68580000.0000
Real-space data points n_real_points43
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.851; Stabil: 1.000; Sysdev: 0.080; Positv: 1.000; Valcen: 0.991; Smooth: 0.867

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 10 domains

CATH v4.4 (10 domains)

Domain ID domain_id3lsvA01
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_id3lsvA02
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_id3lsvB01
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_id3lsvB02
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_id3lsvC01
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_id3lsvC02
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_id3lsvD01
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_id3lsvD02
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_id3lsvE01
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_id3lsvE02
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

8. Citations (1)

9. Files and Curves (10)