1tub

TUBULIN ALPHA-BETA DIMER, ELECTRON DIFFRACTION

Method: ELECTRON CRYSTALLOGRAPHY Dmax: 97.9 Å Quality: REASONABLE

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

TUBULIN

OrganismNot specified

UniProt P02550

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 1–440 Not recorded TUBULIN × 1 (P02554) GTP GUANOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 TXL TAXOTERE × 1 ELECTRON CRYSTALLOGRAPHY X-ray crystallization conditions:TWO-DIMENSIONAL SHEETS ARE FORMED UNDER NORMAL POLYMERIZING CONDITIONS WITH THE ADDITION OF 1 MM ZNCL2 Resolution 3.70 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.

39 other PDB entries and 46 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TBA_PIG
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–440; UniProt 1–440

TUBULIN

OrganismNot specified

UniProt P02554

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 B; UniProt 1–427 Not recorded TUBULIN × 1 (P02550) GTP GUANOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 TXL TAXOTERE × 1 ELECTRON CRYSTALLOGRAPHY X-ray crystallization conditions:TWO-DIMENSIONAL SHEETS ARE FORMED UNDER NORMAL POLYMERIZING CONDITIONS WITH THE ADDITION OF 1 MM ZNCL2 Resolution 3.70 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.

137 other PDB entries and 159 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TBB_PIG
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–427; UniProt 1–427

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 1tub

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1tub
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1tub
Deposition date deposition_date1997-09-23
Structure title titleTUBULIN ALPHA-BETA DIMER, ELECTRON DIFFRACTION
Keywords keywordsMICROTUBULES, ALPHA-TUBULIN, BETA-TUBULIN, GTPASE; MICROTUBULES
Experimental Method methodELECTRON CRYSTALLOGRAPHY

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

Radius of gyration Rg (Guinier) rg_guinier29.21
Radius of gyration Rg (electron density) rg_electron28.55
Forward intensity I(0) i0160620000.00
Molecular weight molecular_weight98418.0 kDa
Excluded volume excluded_volume121910 ų
Envelope volume envelope_volume137760 ų
Hydration-shell volume shell_volume39433 ų
Envelope diameter envelope_diameter104.0
Shell Rg shell_rg36.54
Envelope Rg envelope_rg28.95
Shape Rg shape_rg28.56
Total Rg total_rg29.18
Total atoms total_atoms6907
Residues n_residues867
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 dmax97.9
Rg (real space) rg_real29.21
Rg uncertainty (real space) rg_real_error0.50
I(0) (real space) i0_real1.6060e+08
I(0) uncertainty (real space) i0_real_error2.1110e+06
Rg (reciprocal space) rg_reciprocal29.22
I(0) (reciprocal space) i0_reciprocal160600000.0000
Solution quality estimate total_estimate0.6975
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary32.6
Skewness Skewness skewness0.393
Kurtosis Kurtosis kurtosis-0.305
Angular range angular_range— – 0.2700 −1
Current regularization parameter α current_alpha0.0001
Highest regularization parameter α highest_alpha45070000.0000
Real-space data points n_real_points55
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.814; Stabil: 1.000; Sysdev: 0.218; Positv: 1.000; Valcen: 0.997; Smooth: 0.971

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd1tuba1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.32 — Tubulin nucleotide-binding domain-like
Superfamily Superfamily superfamilyc.32.1 — Tubulin nucleotide-binding domain-like
Family Family familyc.32.1.1 — Tubulin, GTPase domain
Domain ID domain_idd1tuba2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.79 — Bacillus chorismate mutase-like
Superfamily Superfamily superfamilyd.79.2 — Tubulin C-terminal domain-like
Family Family familyd.79.2.1 — Tubulin, C-terminal domain
Domain ID domain_idd1tubb1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.32 — Tubulin nucleotide-binding domain-like
Superfamily Superfamily superfamilyc.32.1 — Tubulin nucleotide-binding domain-like
Family Family familyc.32.1.1 — Tubulin, GTPase domain
Domain ID domain_idd1tubb2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.79 — Bacillus chorismate mutase-like
Superfamily Superfamily superfamilyd.79.2 — Tubulin C-terminal domain-like
Family Family familyd.79.2.1 — Tubulin, C-terminal domain

CATH v4.4 (6 domains)

Domain ID domain_id1tubA01
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_id1tubA02
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_id1tubA03
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology287 — Helix Hairpins
Homologous superfamily homologous superfamily600 — Helix hairpin bin
Domain ID domain_id1tubB01
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_id1tubB02
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_id1tubB03
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology287 — Helix Hairpins
Homologous superfamily homologous superfamily600 — Helix hairpin bin

8. Citations (3)

9. Files and Curves (10)