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6wvr

Tubulin dimers from a 13-protofilament, Taxol stabilized microtubule

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Tubulin alpha-1B chain

OrganismNot specified

UniProt P81947

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Tubulin beta chain × 2 （E1BJB1） GUANOSINE-5'-TRIPHOSPHATE × 2 MAGNESIUM ION × 2 GUANOSINE-5'-DIPHOSPHATE × 2 TAXOL × 2 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
5mio

1 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
3j2u 3j2u 3j2u 4i4t 4i50 4i55 4ihj 4iij 4o2a 4o2b 4o4h 4o4i

251 assemblies; showing the first 12

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 Author chain C； PDBConstruct 1–451； UniProt 1–451

Tubulin beta chain

OrganismNot specified

UniProt E1BJB1

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Tubulin alpha-1B chain × 2 （P81947） GUANOSINE-5'-TRIPHOSPHATE × 2 MAGNESIUM ION × 2 GUANOSINE-5'-DIPHOSPHATE × 2 TAXOL × 2 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
6wvl 6wvm 6wvr 9ot2

4 assemblies

View Construct and Data Evidence
UniProt name E1BJB1_BOVIN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 1–445； UniProt 1–445 Author chain D； 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.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id6wvr
Deposition date deposition_date2020-05-06
Structure title titleTubulin dimers from a 13-protofilament, Taxol stabilized microtubule
Keywords keywordsMicrotubule, STRUCTURAL PROTEIN; STRUCTURAL PROTEIN
Experimental Method methodELECTRON MICROSCOPY
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

6wvr__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

6wvr__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

6wvr__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）49.47 Å
Rg (electron density)50.86 Å
Total Rg50.65 Å
Atom count26894
Residues1712
Excluded volume241970 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 6wvr__assembly_1__model_1 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (6)

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6. Fold Classification (SCOP + CATH) 20 domains

SCOP 2.08 (8 domains)

Domain ID domain_idd6wvra1
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_idd6wvra2
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_idd6wvrb1
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_idd6wvrb2
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_idd6wvrc1
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_idd6wvrc2
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_idd6wvrd1
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_idd6wvrd2
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 (12 domains)

Domain ID domain_id6wvrA01
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_id6wvrA02
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_id6wvrA03
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology287 — Helix Hairpins
Homologous superfamily homologous superfamily600 — Helix hairpin bin
Domain ID domain_id6wvrB01
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_id6wvrB02
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_id6wvrB03
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology287 — Helix Hairpins
Homologous superfamily homologous superfamily600 — Helix hairpin bin
Domain ID domain_id6wvrC01
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_id6wvrC02
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_id6wvrC03
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology287 — Helix Hairpins
Homologous superfamily homologous superfamily600 — Helix hairpin bin
Domain ID domain_id6wvrD01
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_id6wvrD02
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_id6wvrD03
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology287 — Helix Hairpins
Homologous superfamily homologous superfamily600 — Helix hairpin bin
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7. Citations (1)