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8sh7

TUBB4B and TUBA1A Heterodimer from Human Respiratory Doublet Microtubules

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

Tubulin alpha-1A chain

OrganismNot specified

UniProt Q71U36

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 Tubulin beta-4B chain × 1 （P68371） GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 GUANOSINE-5'-DIPHOSPHATE × 1 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
22aj 22ak 5jco 6wsl 7un1 7ung 8j07 8sh7 9ox7 9wd7 9wd9 9wda

13 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name TBA1A_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–451； UniProt 1–451

Tubulin beta-4B chain

OrganismNot specified

UniProt P68371

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 Tubulin alpha-1A chain × 1 （Q71U36） GUANOSINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 1 GUANOSINE-5'-DIPHOSPHATE × 1 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
7un1 7ung 8j07 8sh7

4 assemblies

View Construct and Data Evidence
UniProt name TBB4B_HUMAN
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.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id8sh7
Deposition date deposition_date2023-04-13
Structure title titleTUBB4B and TUBA1A Heterodimer from Human Respiratory Doublet Microtubules
Keywords keywordsCilia, Axoneme, Microtubule, 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.

8sh7__assembly_1__model_1

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

Download this curve (.dat)

8sh7__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.

8sh7__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）30.50 Å
Rg (electron density)29.85 Å
Total Rg30.43 Å
Atom count6819
Residues862
Excluded volume120360 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 8sh7__assembly_1__model_1 dimeric （2） 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 (5)

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7. Citations (1)