5t90

Structural mechanisms for alpha-conotoxin selectivity at the human alpha3beta4 nicotinic acetylcholine receptor

Method: X-RAY DIFFRACTION Dmax: 86.4 Å Quality: EXCELLENT

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

Acetylcholine-binding protein

Lymnaea stagnalis

UniProt P58154

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 heterocomplex Heteromer Protein × 10 PDB declaration: decameric(10) Consistent with protein copy count Chain A; UniProt 20–229 Chain B; UniProt 20–229 Chain C; UniProt 20–229 Chain D; UniProt 20–229 Chain E; UniProt 20–229 Not recorded LsIA × 5 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.3;293 K;0.871 M ammonium sulphate, 7.55% PEG 3350, 2-propanol 7.45% and ammonium acetate 0.1 M pH 4.3 Resolution 2.80 Å R-free 0.245

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.

59 other PDB entries and 122 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ACHP_LYMST
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–210; UniProt 20–229 Author chain B; PDBConstruct 1–210; UniProt 20–229 Author chain C; PDBConstruct 1–210; UniProt 20–229 Author chain D; PDBConstruct 1–210; UniProt 20–229 Author chain E; PDBConstruct 1–210; UniProt 20–229

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 5t90

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 5t90
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2. Structure Basics 2. Structure Basics

Entry ID entry_id5t90
Deposition date deposition_date2016-09-08
Structure title titleStructural mechanisms for alpha-conotoxin selectivity at the human alpha3beta4 nicotinic acetylcholine receptor
Keywords keywordsalpha-conotoxins, acetylcholine binding protein, nicotinic acetylcholine receptor, PROTEIN BINDING; PROTEIN BINDING
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier32.04
Radius of gyration Rg (electron density) rg_electron30.23
Forward intensity I(0) i0258198000.00
Molecular weight molecular_weight122780.0 kDa
Excluded volume excluded_volume151550 ų
Envelope volume envelope_volume196710 ų
Hydration-shell volume shell_volume51320 ų
Envelope diameter envelope_diameter94.3
Shell Rg shell_rg39.76
Envelope Rg envelope_rg29.52
Shape Rg shape_rg30.20
Total Rg total_rg31.14
Total atoms total_atoms8627
Residues n_residues1090
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 dmax86.4
Rg (real space) rg_real31.69
Rg uncertainty (real space) rg_real_error0.36
I(0) (real space) i0_real2.5820e+08
I(0) uncertainty (real space) i0_real_error3.3660e+06
Rg (reciprocal space) rg_reciprocal31.84
I(0) (reciprocal space) i0_reciprocal258200000.0000
Solution quality estimate total_estimate0.9015
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary42.3
Skewness Skewness skewness-0.094
Kurtosis Kurtosis kurtosis-0.625
Angular range angular_range— – 0.2450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha52690000.0000
Real-space data points n_real_points50
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.976; Stabil: 0.993; Sysdev: 1.000; Positv: 1.000; Valcen: 0.989; Smooth: 0.820

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 5 domains

CATH v4.4 (5 domains)

Domain ID domain_id5t90A00
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_id5t90B00
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_id5t90C00
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_id5t90D00
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_id5t90E00
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

8. Citations (1)

9. Files and Curves (10)