4iqp

Crystal Structure of HCRA-W1266A

Method: X-RAY DIFFRACTION Dmax: 84.6 Å Quality: GOOD

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

Botulinum neurotoxin type A

Clostridium botulinum

UniProt P10845

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 871–1296 Mutation:W1266A GOL GLYCEROL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:EVAPORATION;pH 7.5;292 K;0.1 M Hepes, 12% PEG3350, 100 mM NaCl, pH 7.5, EVAPORATION, temperature 292K Resolution 2.30 Å R-free 0.246

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.

26 other PDB entries and 41 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name BXA1_CLOBO
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–426; UniProt 871–1296

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 4iqp

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4iqp
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4iqp
Deposition date deposition_date2013-01-12
Structure title titleCrystal Structure of HCRA-W1266A
Keywords keywordsBotulinum Neurotoxin, receptor binding domain, Ganglioside binding loop, TOXIN; TOXIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier24.95
Radius of gyration Rg (electron density) rg_electron23.82
Forward intensity I(0) i039451300.00
Molecular weight molecular_weight48950.0 kDa
Excluded volume excluded_volume61479 ų
Envelope volume envelope_volume71811 ų
Hydration-shell volume shell_volume25561 ų
Envelope diameter envelope_diameter84.2
Shell Rg shell_rg30.61
Envelope Rg envelope_rg23.99
Shape Rg shape_rg23.78
Total Rg total_rg24.75
Total atoms total_atoms3452
Residues n_residues419
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 dmax84.6
Rg (real space) rg_real25.01
Rg uncertainty (real space) rg_real_error0.57
I(0) (real space) i0_real3.9450e+07
I(0) uncertainty (real space) i0_real_error4.9470e+05
Rg (reciprocal space) rg_reciprocal25.00
I(0) (reciprocal space) i0_reciprocal39450000.0000
Solution quality estimate total_estimate0.8695
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary26.9
Skewness Skewness skewness0.428
Kurtosis Kurtosis kurtosis-0.301
Angular range angular_range— – 0.3200 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha7984000.0000
Real-space data points n_real_points64
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.800; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.926; Smooth: 0.973

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd4iqpa1
Class classb — All beta proteins
Fold Fold foldb.29 — Concanavalin A-like lectins/glucanases
Superfamily Superfamily superfamilyb.29.1 — Concanavalin A-like lectins/glucanases
Family Family familyb.29.1.0 — automated matches
Domain ID domain_idd4iqpa2
Class classb — All beta proteins
Fold Fold foldb.42 — beta-Trefoil
Superfamily Superfamily superfamilyb.42.4 — STI-like
Family Family familyb.42.4.0 — automated matches

CATH v4.4 (2 domains)

Domain ID domain_id4iqpA01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily200
Domain ID domain_id4iqpA02
Class class2 — Mainly Beta
Architecture architecture80 — Trefoil
Topology topology10 — Trefoil (Acidic Fibroblast Growth Factor, subunit A)
Homologous superfamily homologous superfamily50

8. Citations (1)

9. Files and Curves (10)