7egr

Co-crystal structure of Ac-AChBPP in complex with RgIA

Method: X-RAY DIFFRACTION Dmax: 147.5 Å Quality: GOOD

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

Soluble acetylcholine receptor

Aplysia californica

UniProt Q8WSF8

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 × 9 PDB declaration: nonameric(9) Consistent with protein copy count Chain A; UniProt 19–224 Chain B; UniProt 20–223 Chain C; UniProt 20–223 Chain D; UniProt 19–224 Chain E; UniProt 19–223 Not recorded RgIA × 4 MG MAGNESIUM ION × 6 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;291 K;1.8 M Magnesium sulfate hydrate, 0.1 M Sodium acetate trihydrate pH 4.6 Resolution 2.50 Å R-free 0.221
2 Protein heterocomplex Heteromer Protein × 9 PDB declaration: nonameric(9) Consistent with protein copy count Chain F; UniProt 19–223 Chain G; UniProt 19–224 Chain H; UniProt 19–224 Chain I; UniProt 19–224 Chain J; UniProt 19–224 Not recorded RgIA × 4 MG MAGNESIUM ION × 4 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;291 K;1.8 M Magnesium sulfate hydrate, 0.1 M Sodium acetate trihydrate pH 4.6 Resolution 2.50 Å R-free 0.221

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.

85 other PDB entries and 119 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name Q8WSF8_APLCA
Isoform
PDB entities 1, 2, 3
Chains and sequence ranges Author chain A; PDBConstruct 1–206; UniProt 19–224 Author chain D; PDBConstruct 1–206; UniProt 19–224 Author chain G; PDBConstruct 1–206; UniProt 19–224 Author chain H; PDBConstruct 1–206; UniProt 19–224 Author chain I; PDBConstruct 1–206; UniProt 19–224 Author chain J; PDBConstruct 1–206; UniProt 19–224 Author chain B; PDBConstruct 1–204; UniProt 20–223 Author chain C; PDBConstruct 1–204; UniProt 20–223 Author chain E; PDBConstruct 1–205; UniProt 19–223 Author chain F; PDBConstruct 1–205; UniProt 19–223

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 7egr

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7egr
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7egr
Deposition date deposition_date2021-03-26
Structure title titleCo-crystal structure of Ac-AChBPP in complex with RgIA
Keywords keywordsacetylcholine binding protein, nicotinic acetylcholine receptors, conotoxin, molecular dynamics simulation, TOXIN; TOXIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier44.66
Radius of gyration Rg (electron density) rg_electron44.09
Forward intensity I(0) i0917971000.00
Molecular weight molecular_weight244650.0 kDa
Excluded volume excluded_volume303010 ų
Envelope volume envelope_volume403510 ų
Hydration-shell volume shell_volume75550 ų
Envelope diameter envelope_diameter142.4
Shell Rg shell_rg50.05
Envelope Rg envelope_rg43.19
Shape Rg shape_rg44.08
Total Rg total_rg44.36
Total atoms total_atoms17174
Residues n_residues2158
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 dmax147.5
Rg (real space) rg_real44.62
Rg uncertainty (real space) rg_real_error1.32
I(0) (real space) i0_real9.1800e+08
I(0) uncertainty (real space) i0_real_error1.8410e+07
Rg (reciprocal space) rg_reciprocal44.66
I(0) (reciprocal space) i0_reciprocal918000000.0000
Solution quality estimate total_estimate0.8009
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary50.6
Skewness Skewness skewness0.324
Kurtosis Kurtosis kurtosis-0.463
Angular range angular_range— – 0.1750 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha90860000.0000
Real-space data points n_real_points36
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.802; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

8. Citations (1)

9. Files and Curves (10)