7tgi

Single-domain VHH intrabodies neutralize ricin toxin

Method: X-RAY DIFFRACTION Dmax: 84.4 Å Quality: GOOD

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

Ricin chain A

Ricinus communis

UniProt P02879

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 × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 36–302 Not recorded VHH antibody × 1 CL CHLORIDE ION × 5 EDO 1,2-ETHANEDIOL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.5;298 K;200 mM magnesium chloride, 20% PEG 3350 Resolution 2.10 Å R-free 0.222

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.

100 other PDB entries and 126 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RICI_RICCO
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–267; UniProt 36–302

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 7tgi

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id7tgi
Deposition date deposition_date2022-01-07
Structure title titleSingle-domain VHH intrabodies neutralize ricin toxin
Keywords keywordsricin toxin, VHH antibody, IMMUNE SYSTEM, IMMUNE SYSTEM-TOXIN complex; IMMUNE SYSTEM/TOXIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier23.18
Radius of gyration Rg (electron density) rg_electron22.29
Forward intensity I(0) i030536100.00
Molecular weight molecular_weight41857.0 kDa
Excluded volume excluded_volume52138 ų
Envelope volume envelope_volume61391 ų
Hydration-shell volume shell_volume23511 ų
Envelope diameter envelope_diameter85.5
Shell Rg shell_rg28.80
Envelope Rg envelope_rg22.60
Shape Rg shape_rg22.28
Total Rg total_rg23.11
Total atoms total_atoms2948
Residues n_residues371
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 dmax84.4
Rg (real space) rg_real23.22
Rg uncertainty (real space) rg_real_error0.67
I(0) (real space) i0_real3.0540e+07
I(0) uncertainty (real space) i0_real_error4.4040e+05
Rg (reciprocal space) rg_reciprocal23.22
I(0) (reciprocal space) i0_reciprocal30540000.0000
Solution quality estimate total_estimate0.8317
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary27.3
Skewness Skewness skewness0.471
Kurtosis Kurtosis kurtosis-0.080
Angular range angular_range— – 0.3450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha8489000.0000
Real-space data points n_real_points66
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.630; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.919; Smooth: 1.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

8. Citations (1)

9. Files and Curves (10)