8h9w

Crystal structure of voltage-gated sodium channel NavAb N49K mutant in calcium ion condition

Method: X-RAY DIFFRACTION Dmax: 85.7 Å Quality: GOOD

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

Ion transport protein

Aliarcobacter butzleri

UniProt A8EVM5

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 1–267 Mutation:N49K LMT DODECYL-BETA-D-MALTOSIDE × 8 1N7 CHAPSO × 4 PX4 1,2-DIMYRISTOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 32 CA CALCIUM ION × 4 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;9%-11% PEG MME 2000, 100 mM sodium chloride, 100 mM magnesium nitrate, 25 mM cadmium nitrate, 100 mM Tris-HCl, pH 8.4 Resolution 2.70 Å R-free 0.264

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.

71 other PDB entries and 73 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name A8EVM5_ALIB4
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 5–271; UniProt 1–267

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 8h9w

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8h9w
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8h9w
Deposition date deposition_date2022-10-25
Structure title titleCrystal structure of voltage-gated sodium channel NavAb N49K mutant in calcium ion condition
Keywords keywordsion channel, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier26.55
Radius of gyration Rg (electron density) rg_electron24.89
Forward intensity I(0) i010403700.00
Molecular weight molecular_weight32183.0 kDa
Excluded volume excluded_volume43899 ų
Envelope volume envelope_volume57244 ų
Hydration-shell volume shell_volume20229 ų
Envelope diameter envelope_diameter86.6
Shell Rg shell_rg30.79
Envelope Rg envelope_rg24.21
Shape Rg shape_rg24.91
Total Rg total_rg25.85
Total atoms total_atoms2256
Residues n_residues218
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 dmax85.7
Rg (real space) rg_real26.54
Rg uncertainty (real space) rg_real_error0.88
I(0) (real space) i0_real1.0400e+07
I(0) uncertainty (real space) i0_real_error1.6670e+05
Rg (reciprocal space) rg_reciprocal26.55
I(0) (reciprocal space) i0_reciprocal10400000.0000
Solution quality estimate total_estimate0.7810
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary40.0
Skewness Skewness skewness0.091
Kurtosis Kurtosis kurtosis-0.679
Angular range angular_range— – 0.3000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha785100.0000
Real-space data points n_real_points61
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.764; Stabil: 0.998; Sysdev: 1.000; Positv: 1.000; Valcen: 0.864; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id8h9wA01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology120 — Four Helix Bundle (Hemerythrin (Met), subunit A)
Homologous superfamily homologous superfamily350 — Voltage-gated potassium channels. Chain C
Domain ID domain_id8h9wA02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology287 — Helix Hairpins
Homologous superfamily homologous superfamily70

8. Citations (1)

9. Files and Curves (10)