7tnt

The tubulin-based conoid from detergent-extract Toxoplasma gondii cells

Method: ELECTRON MICROSCOPY Dmax: 265.5 Å Quality: EXCELLENT

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

Tubulin alpha chain

OrganismNot specified

UniProt P10873

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 × 36 PDB declaration: 36-meric(36) Consistent with protein copy count Chain 2A; UniProt 1–437 Chain 2B; UniProt 1–437 Chain 2C; UniProt 1–437 Chain 2D; UniProt 1–437 Chain 2E; UniProt 1–437 Chain 2F; UniProt 1–437 Chain 2G; UniProt 1–437 Chain 2H; UniProt 1–437 Chain 2I; UniProt 1–437 Chain 4A; UniProt 1–437 Chain 4B; UniProt 1–437 Chain 4C; UniProt 1–437 Chain 4D; UniProt 1–437 Chain 4E; UniProt 1–437 Chain 4F; UniProt 1–437 Chain 4G; UniProt 1–437 Chain 4H; UniProt 1–437 Chain 4I; UniProt 1–437 Not recorded Tubulin beta chain × 18 (A0A125YWG5) ELECTRON MICROSCOPY cryo-EM buffer:pH 7.2;Phosphate Buffered Saline cryo-EM vitrification conditions:Cryogen ETHANE Resolution 9.30 Å

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.

7 other PDB entries and 7 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TBA_TOXGO
Isoform
PDB entities 1
Chains and sequence ranges Author chain 2A; PDBConstruct 1–437; UniProt 1–437 Author chain 2B; PDBConstruct 1–437; UniProt 1–437 Author chain 2C; PDBConstruct 1–437; UniProt 1–437 Author chain 2D; PDBConstruct 1–437; UniProt 1–437 Author chain 2E; PDBConstruct 1–437; UniProt 1–437 Author chain 2F; PDBConstruct 1–437; UniProt 1–437 Author chain 2G; PDBConstruct 1–437; UniProt 1–437 Author chain 2H; PDBConstruct 1–437; UniProt 1–437 Author chain 2I; PDBConstruct 1–437; UniProt 1–437 Author chain 4A; PDBConstruct 1–437; UniProt 1–437 Author chain 4B; PDBConstruct 1–437; UniProt 1–437 Author chain 4C; PDBConstruct 1–437; UniProt 1–437 Author chain 4D; PDBConstruct 1–437; UniProt 1–437 Author chain 4E; PDBConstruct 1–437; UniProt 1–437 Author chain 4F; PDBConstruct 1–437; UniProt 1–437 Author chain 4G; PDBConstruct 1–437; UniProt 1–437 Author chain 4H; PDBConstruct 1–437; UniProt 1–437 Author chain 4I; PDBConstruct 1–437; UniProt 1–437

Tubulin beta chain

OrganismNot specified

UniProt A0A125YWG5

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 × 36 PDB declaration: 36-meric(36) Consistent with protein copy count Chain 3A; UniProt 1–426 Chain 3B; UniProt 1–426 Chain 3C; UniProt 1–426 Chain 3D; UniProt 1–426 Chain 3E; UniProt 1–426 Chain 3F; UniProt 1–426 Chain 3G; UniProt 1–426 Chain 3H; UniProt 1–426 Chain 3I; UniProt 1–426 Chain 5A; UniProt 1–426 Chain 5B; UniProt 1–426 Chain 5C; UniProt 1–426 Chain 5D; UniProt 1–426 Chain 5E; UniProt 1–426 Chain 5F; UniProt 1–426 Chain 5G; UniProt 1–426 Chain 5H; UniProt 1–426 Chain 5I; UniProt 1–426 Not recorded Tubulin alpha chain × 18 (P10873) ELECTRON MICROSCOPY cryo-EM buffer:pH 7.2;Phosphate Buffered Saline cryo-EM vitrification conditions:Cryogen ETHANE Resolution 9.30 Å

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.

2 other PDB entries and 2 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name A0A125YWG5_TOXGM
Isoform
PDB entities 2
Chains and sequence ranges Author chain 3A; PDBConstruct 1–426; UniProt 1–426 Author chain 3B; PDBConstruct 1–426; UniProt 1–426 Author chain 3C; PDBConstruct 1–426; UniProt 1–426 Author chain 3D; PDBConstruct 1–426; UniProt 1–426 Author chain 3E; PDBConstruct 1–426; UniProt 1–426 Author chain 3F; PDBConstruct 1–426; UniProt 1–426 Author chain 3G; PDBConstruct 1–426; UniProt 1–426 Author chain 3H; PDBConstruct 1–426; UniProt 1–426 Author chain 3I; PDBConstruct 1–426; UniProt 1–426 Author chain 5A; PDBConstruct 1–426; UniProt 1–426 Author chain 5B; PDBConstruct 1–426; UniProt 1–426 Author chain 5C; PDBConstruct 1–426; UniProt 1–426 Author chain 5D; PDBConstruct 1–426; UniProt 1–426 Author chain 5E; PDBConstruct 1–426; UniProt 1–426 Author chain 5F; PDBConstruct 1–426; UniProt 1–426 Author chain 5G; PDBConstruct 1–426; UniProt 1–426 Author chain 5H; PDBConstruct 1–426; UniProt 1–426 Author chain 5I; PDBConstruct 1–426; UniProt 1–426

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 7tnt

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id7tnt
Deposition date deposition_date2022-01-21
Structure title titleThe tubulin-based conoid from detergent-extract Toxoplasma gondii cells
Keywords keywordsparasites, Toxoplasma gondii, cytoskeleton, conoid, tubulin, CELL INVASION; CELL INVASION
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier
Radius of gyration Rg (electron density) rg_electron105.20
Forward intensity I(0) i041209100000.00
Molecular weight molecular_weight1707300.0 kDa
Excluded volume excluded_volume2122000 ų
Envelope volume envelope_volume3947600 ų
Hydration-shell volume shell_volume313940 ų
Envelope diameter envelope_diameter346.0
Shell Rg shell_rg109.50
Envelope Rg envelope_rg96.90
Shape Rg shape_rg105.30
Total Rg total_rg105.20
Total atoms total_atoms119808
Residues n_residues15372
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 dmax265.5
Rg (real space) rg_real102.00
Rg uncertainty (real space) rg_real_error0.66
I(0) (real space) i0_real3.9530e+10
I(0) uncertainty (real space) i0_real_error7.9950e+08
Rg (reciprocal space) rg_reciprocal106.60
I(0) (reciprocal space) i0_reciprocal41320000000.0000
Solution quality estimate total_estimate0.9166
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary141.6
Skewness Skewness skewness0.028
Kurtosis Kurtosis kurtosis-0.615
Angular range angular_range— – 0.0750 −1
Current regularization parameter α current_alpha0.7740
Highest regularization parameter α highest_alpha707600000.0000
Real-space data points n_real_points16
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.999; Stabil: 0.977; Sysdev: 1.000; Positv: 1.000; Valcen: 0.990; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

8. Citations (1)

9. Files and Curves (10)