SAXSdb — 8qv0

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

Tubulin alpha-1 chain

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 26	Tubulin beta chain × 13 （A0A6A5PXT5）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TBA1_YEAST
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–447； UniProt 1–447 Author chain C； PDBConstruct 1–447； UniProt 1–447 Author chain D； PDBConstruct 1–447； UniProt 1–447 Author chain E； PDBConstruct 1–447； UniProt 1–447 Author chain F； PDBConstruct 1–447； UniProt 1–447 Author chain G； PDBConstruct 1–447； UniProt 1–447 Author chain H； PDBConstruct 1–447； UniProt 1–447 Author chain I； PDBConstruct 1–447； UniProt 1–447 Author chain J； PDBConstruct 1–447； UniProt 1–447 Author chain K； PDBConstruct 1–447； UniProt 1–447 Author chain L； PDBConstruct 1–447； UniProt 1–447 Author chain M； PDBConstruct 1–447； UniProt 1–447 Author chain N； PDBConstruct 1–447； UniProt 1–447

Tubulin beta chain

OrganismNot specified

UniProt A0A6A5PXT5

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 26	Tubulin alpha-1 chain × 13 （P09733）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	A0A6A5PXT5_YEASX
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–457； UniProt 1–457 Author chain O； PDBConstruct 1–457； UniProt 1–457 Author chain P； PDBConstruct 1–457； UniProt 1–457 Author chain Q； PDBConstruct 1–457； UniProt 1–457 Author chain R； PDBConstruct 1–457； UniProt 1–457 Author chain S； PDBConstruct 1–457； UniProt 1–457 Author chain T； PDBConstruct 1–457； UniProt 1–457 Author chain U； PDBConstruct 1–457； UniProt 1–457 Author chain V； PDBConstruct 1–457； UniProt 1–457 Author chain W； PDBConstruct 1–457； UniProt 1–457 Author chain X； PDBConstruct 1–457； UniProt 1–457 Author chain Y； PDBConstruct 1–457； UniProt 1–457 Author chain Z； PDBConstruct 1–457； UniProt 1–457

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_id	8qv0
Deposition date deposition_date	2023-10-17
Structure title title	Structure of the native microtubule lattice nucleated from the yeast spindle pole body
Keywords keywords	Microtubule nucleation, MTOC, y-tubulin, SPB, CELL CYCLE; CELL CYCLE
Experimental Method method	ELECTRON 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.

8qv0__assembly_1__model_1

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

Download this curve (.dat)

8qv0__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

8qv0__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	0.00 Å
Rg (electron density)	122.50 Å
Total Rg	122.60 Å
Atom count	88153
Residues	11271
Excluded volume	1555400 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`8qv0__assembly_1__model_1`	26-meric （26）	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 (2)

Entity 1 Entity 1 polymer

Description description	Tubulin alpha-1 chain
Molecular weight formula_weight	49853.9 kDa
Source method src_method	nat
Copy count entity_count	13

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,C,D,E,F,G,H,I,J,K,L,M,N
Atom count atom_count	88153

MREVISINVGQAGCQIGNACWELYSLEHGIKPDGHLEDGLSKPKGGEEGFSTFFHETGYGKFVPRAIYVDLEPNVIDEVRNGPYKDLFHPEQLISGKEDAANNYARGHYTVGREILGDVLDRIRKLADQCDGLQGFLFTHSLGGGTGSGLGSLLLEELSAEYGKKSKLEFAVYPAPQVSTSVVEPYNTVLTTHTTLEHADCTFMVDNEAIYDMCKRNLDIPRPSFANLNNLIAQVVSSVTASLRFDGSLNVDLNEFQTNLVPYPRIHFPLVSYSPVLSKSKAFHESNSVSEITNACFEPGNQMVKCDPRDGKYMATCLLYRGDVVTRDVQRAVEQVKNKKTVQLVDWCPTGFKIGICYEPPTATPNSQLATVDRAVCMLSNTTSIAEAWKRIDRKFDLMYAKRAFVHWYVGEGMEEGEFTEAREDLAALERDYIEVGADSYAEEEEF

Entity 2 Entity 2 polymer

Description description	Tubulin beta chain
Molecular weight formula_weight	50967.5 kDa
Source method src_method	nat
Copy count entity_count	13

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,O,P,Q,R,S,T,U,V,W,X,Y,Z

MREIIHISTGQCGNQIGAAFWETICGEHGLDFNGTYHGHDDIQKERLNVYFNEASSGKWVPRSINVDLEPGTIDAVRNSAIGNLFRPDNYIFGQSSAGNVWAKGHYTEGAELVDSVMDVIRREAEGCDSLQGFQITHSLGGGTGSGMGTLLISKIREEFPDRMMATFSVLPSPKTSDTVVEPYNATLSVHQLVEHSDETFCIDNEALYDICQRTLKLNQPSYGDLNNLVSSVMSGVTTSLRYPGQLNSDLRKLAVNLVPFPRLHFFMVGYAPLTAIGSQSFRSLTVPELTQQMFDAKNMMAAADPRNGRYLTVAAFFRGKVSVKEVEDEMHKVQSKNSDYFVEWIPNNVQTAVCSVAPQGLDMAATFIANSTSIQELFKRVGDQFSAMFKRKAFLHWYTSEGMDELEFSEAESNMNDLVSEYQQYQEATVEDDEEVDENGDFGAPQNQDEPITENFE

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	—

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	6.60 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	130704

Structure of the native microtubule lattice nucleated from the yeast spindle pole body

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

Tubulin alpha-1 chain

State in the Current Structure

Other States of the Same Protein in the Database

Tubulin beta chain

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

8qv0__assembly_1__model_1

8qv0__assembly_1__model_1 | I(q)

8qv0__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

7. Citations (1)

Structure of the native microtubule lattice nucleated from the yeast spindle pole body

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

Tubulin alpha-1 chain

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Tubulin beta chain

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

8qv0__assembly_1__model_1

8qv0__assembly_1__model_1 | I(q)

8qv0__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

7. Citations (1)