7yyz

Molecular snapshots of drug release from tubulin: 10 microseconds after photoactivation.

Method: X-RAY DIFFRACTION Dmax: 123.8 Å Quality: GOOD

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

Tubulin alpha-1B chain

OrganismNot specified

UniProt P81947

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 × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 1–451 Not recorded Tubulin beta-2B chain × 1 (Q6B856) Designed Ankyrin Repeat Protein (DARPIN) D1 × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 CA CALCIUM ION × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 VYT Azo-Combretastatin A4 (trans) × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;293 K;0.2M Ammonium sulfate, 0.1M Bis/Tris-methane pH=5.5, 21% PEG 3000 (m/v) Resolution 2.20 Å R-free 0.355

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.

249 other PDB entries and 251 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TBA1B_BOVIN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–451; UniProt 1–451

Tubulin beta-2B chain

OrganismNot specified

UniProt Q6B856

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 × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain B; UniProt 1–445 Not recorded Tubulin alpha-1B chain × 1 (P81947) Designed Ankyrin Repeat Protein (DARPIN) D1 × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 CA CALCIUM ION × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 VYT Azo-Combretastatin A4 (trans) × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;293 K;0.2M Ammonium sulfate, 0.1M Bis/Tris-methane pH=5.5, 21% PEG 3000 (m/v) Resolution 2.20 Å R-free 0.355

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.

273 other PDB entries and 275 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TBB2B_BOVIN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–445; UniProt 1–445

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 7yyz

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id7yyz
Deposition date deposition_date2022-02-18
Structure title titleMolecular snapshots of drug release from tubulin: 10 microseconds after photoactivation.
Keywords keywordstime-resolved serial crystallography, tubulin dynamics, azobenzene dynamics, CELL CYCLE; CELL CYCLE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier34.47
Radius of gyration Rg (electron density) rg_electron34.53
Forward intensity I(0) i0207998000.00
Molecular weight molecular_weight113580.0 kDa
Excluded volume excluded_volume140890 ų
Envelope volume envelope_volume172770 ų
Hydration-shell volume shell_volume43455 ų
Envelope diameter envelope_diameter133.0
Shell Rg shell_rg39.30
Envelope Rg envelope_rg34.89
Shape Rg shape_rg34.53
Total Rg total_rg34.87
Total atoms total_atoms7971
Residues n_residues1018
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 dmax123.8
Rg (real space) rg_real34.74
Rg uncertainty (real space) rg_real_error1.16
I(0) (real space) i0_real2.0800e+08
I(0) uncertainty (real space) i0_real_error3.5830e+06
Rg (reciprocal space) rg_reciprocal34.58
I(0) (reciprocal space) i0_reciprocal208000000.0000
Solution quality estimate total_estimate0.8200
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary35.0
Skewness Skewness skewness0.629
Kurtosis Kurtosis kurtosis0.031
Angular range angular_range— – 0.2300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha47110000.0000
Real-space data points n_real_points47
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.640; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.892; Smooth: 0.842

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (9)

7. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id7yyzA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1440 — Tubulin/FtsZ, GTPase domain
Domain ID domain_id7yyzA02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily20 — Tubulin/FtsZ, C-terminal domain
Domain ID domain_id7yyzB01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1440 — Tubulin/FtsZ, GTPase domain
Domain ID domain_id7yyzB02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily20 — Tubulin/FtsZ, C-terminal domain

8. Citations (2)

9. Files and Curves (10)