5kx5

Crystal structure of tubulin-stathmin-TTL-Compound 11 complex

Method: X-RAY DIFFRACTION

▼

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

Tubulin alpha 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 6	Tubulin beta chain × 2 （D0VWY9） Stathmin-4 × 1 （P63043） TTL protein × 1 （E1BQ43） GUANOSINE-5'-TRIPHOSPHATE × 2 MAGNESIUM ION × 6 CALCIUM ION × 4 GUANOSINE-5'-DIPHOSPHATE × 2 ;(2~{S},4~{R})-4-[[2-[(1~{R},3~{R})-1-acetyloxy-3-[[(2~{S},3~{S})-2-[[(2~{R})-1,2-dimethylpyrrolidin-2-yl]carbonylamino]-3-methyl-pentanoyl]-methyl-amino]-4-methyl-pentyl]-1,3-thiazol-4-yl]carbonylamino]-5-(4-aminophenyl)-2-methyl-pentanoic acid ; × 2 ADENOSINE-5'-DIPHOSPHATE × 1 water × 6	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	D0VWZ0_SHEEP
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 D0VWY9

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 6	Tubulin alpha chain × 2 （D0VWZ0） Stathmin-4 × 1 （P63043） TTL protein × 1 （E1BQ43） GUANOSINE-5'-TRIPHOSPHATE × 2 MAGNESIUM ION × 6 CALCIUM ION × 4 GUANOSINE-5'-DIPHOSPHATE × 2 ;(2~{S},4~{R})-4-[[2-[(1~{R},3~{R})-1-acetyloxy-3-[[(2~{S},3~{S})-2-[[(2~{R})-1,2-dimethylpyrrolidin-2-yl]carbonylamino]-3-methyl-pentanoyl]-methyl-amino]-4-methyl-pentyl]-1,3-thiazol-4-yl]carbonylamino]-5-(4-aminophenyl)-2-methyl-pentanoic acid ; × 2 ADENOSINE-5'-DIPHOSPHATE × 1 water × 6	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	D0VWY9_SHEEP
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

Stathmin-4

Rattus norvegicus

UniProt P63043

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 6	Tubulin alpha chain × 2 （D0VWZ0） Tubulin beta chain × 2 （D0VWY9） TTL protein × 1 （E1BQ43） GUANOSINE-5'-TRIPHOSPHATE × 2 MAGNESIUM ION × 6 CALCIUM ION × 4 GUANOSINE-5'-DIPHOSPHATE × 2 ;(2~{S},4~{R})-4-[[2-[(1~{R},3~{R})-1-acetyloxy-3-[[(2~{S},3~{S})-2-[[(2~{R})-1,2-dimethylpyrrolidin-2-yl]carbonylamino]-3-methyl-pentanoyl]-methyl-amino]-4-methyl-pentyl]-1,3-thiazol-4-yl]carbonylamino]-5-(4-aminophenyl)-2-methyl-pentanoic acid ; × 2 ADENOSINE-5'-DIPHOSPHATE × 1 water × 6	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	STMN4_RAT
Isoform	P63043-3
PDB entities	3
Chains and sequence ranges	Author chain E； PDBConstruct 3–143； UniProt 76–216

TTL protein

Gallus gallus

UniProt E1BQ43

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 6	Tubulin alpha chain × 2 （D0VWZ0） Tubulin beta chain × 2 （D0VWY9） Stathmin-4 × 1 （P63043） GUANOSINE-5'-TRIPHOSPHATE × 2 MAGNESIUM ION × 6 CALCIUM ION × 4 GUANOSINE-5'-DIPHOSPHATE × 2 ;(2~{S},4~{R})-4-[[2-[(1~{R},3~{R})-1-acetyloxy-3-[[(2~{S},3~{S})-2-[[(2~{R})-1,2-dimethylpyrrolidin-2-yl]carbonylamino]-3-methyl-pentanoyl]-methyl-amino]-4-methyl-pentyl]-1,3-thiazol-4-yl]carbonylamino]-5-(4-aminophenyl)-2-methyl-pentanoic acid ; × 2 ADENOSINE-5'-DIPHOSPHATE × 1 water × 6	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	E1BQ43_CHICK
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain F； PDBConstruct 1–378； UniProt 1–378

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	5kx5
Deposition date deposition_date	2016-07-20
Structure title title	Crystal structure of tubulin-stathmin-TTL-Compound 11 complex
Keywords keywords	Tubulin Tubulysin, STRUCTURAL PROTEIN-INHIBITOR complex; STRUCTURAL PROTEIN/INHIBITOR
Experimental Method method	X-RAY DIFFRACTION

▼

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.

5kx5__assembly_1__model_1

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

Download this curve (.dat)

5kx5__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

5kx5__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	56.18 Å
Rg (electron density)	57.08 Å
Total Rg	56.88 Å
Atom count	17623
Residues	2193
Excluded volume	311860 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`5kx5__assembly_1__model_1`	hexameric （6）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (11)

Entity 1 Entity 1 polymer

Description description	Tubulin alpha chain
Molecular weight formula_weight	50188.4 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,C
Atom count atom_count	17802

MRECISIHVGQAGVQIGNACWELYCLEHGIQPDGQMPSDKTIGGGDDSFNTFFSETGAGKHVPRAVFVDLEPTVIDEVRTGTYRQLFHPEQLITGKEDAANNYARGHYTIGKEIIDLVLDRIRKLADQCTGLQGFLVFHSFGGGTGSGFTSLLMERLSVDYGKKSKLEFSIYPAPQVSTAVVEPYNSILTTHTTLEHSDCAFMVDNEAIYDICRRNLDIERPTYTNLNRLIGQIVSSITASLRFDGALNVDLTEFQTNLVPYPRIHFPLATYAPVISAEKAYHEQLSVAEITNACFEPANQMVKCDPRHGKYMACCLLYRGDVVPKDVNAAIATIKTKRTIQFVDWCPTGFKVGINYQPPTVVPGGDLAKVQRAVCMLSNTTAIAEAWARLDHKFDLMYAKRAFVHWYVGEGMEEGEFSEAREDMAALEKDYEEVGVDSVEGEGEEEGEEY

Entity 2 Entity 2 polymer

Description description	Tubulin beta chain
Molecular weight formula_weight	49969.8 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,D

MREIVHIQAGQCGNQIGAKFWEVISDEHGIDPTGSYHGDSDLQLERINVYYNEATGNKYVPRAILVDLEPGTMDSVRSGPFGQIFRPDNFVFGQSGAGNNWAKGHYTEGAELVDSVLDVVRKESESCDCLQGFQLTHSLGGGTGSGMGTLLISKIREEYPDRIMNTFSVMPSPKVSDTVVEPYNATLSVHQLVENTDETYSIDNEALYDICFRTLKLTTPTYGDLNHLVSATMSGVTTCLRFPGQLNADLRKLAVNMVPFPRLHFFMPGFAPLTSRGSQQYRALTVPELTQQMFDSKNMMAACDPRHGRYLTVAAVFRGRMSMKEVDEQMLNVQNKNSSYFVEWIPNNVKTAVCDIPPRGLKMSATFIGNSTAIQELFKRISEQFTAMFRRKAFLHWYTGEGMDEMEFTEAESNMNDLVSEYQQYQDATADEQGEFEEEEGEDEA

Entity 3 Entity 3 polymer

Description description	Stathmin-4
Molecular weight formula_weight	16851.1 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E

MADMEVIELNKATSGQSWEVILKPPSFDGVPEFNASLPRRRDPSLEEIQKKLEAAEERRKYQEAELLKHLAEKREHEREVIQKAIEENNNFIKMAKEKLAQKMESNKENREAHLAAMLERLQEKDKHAEEVRKNKELKEEASR

Source Source

Source organism organism	Rattus norvegicus
Common name common_name	Rat
NCBI taxonomy ID ncbi_taxonomy_id	10116
Host organism host_organism	Escherichia coli

Entity 4 Entity 4 polymer

Description description	TTL protein
Molecular weight formula_weight	44378.5 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	F

MYTFVVRDENSSVYAEVSRLLLATGQWKRLRKDNPRFNLMLGERNRLPFGRLGHEPGLVQLVNYYRGADKLCRKASLVKLIKTSPELSESCTWFPESYVIYPTNLKTPVAPAQNGIRHLINNTRTDEREVFLAAYNRRREGREGNVWIAKSSAGAKGEGILISSEASELLDFIDEQGQVHVIQKYLEKPLLLEPGHRKFDIRSWVLVDHLYNIYLYREGVLRTSSEPYNSANFQDKTCHLTNHCIQKEYSKNYGRYEEGNEMFFEEFNQYLMDALNTTLENSILLQIKHIIRSCLMCIEPAISTKHLHYQSFQLFGFDFMVDEELKVWLIEVNGAPACAQKLYAELCQGIVDVAISSVFPLADTGQKTSQPTSIFIKLHHHHHH

Source Source

Source organism organism	Gallus gallus
Common name common_name	Chicken
NCBI taxonomy ID ncbi_taxonomy_id	9031
Host organism host_organism	Escherichia coli

Entity 5 Entity 5 non-polymer

Description description	GUANOSINE-5'-TRIPHOSPHATE
Molecular weight formula_weight	523.2 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 6 Entity 6 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	6

Entity 7 Entity 7 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 8 Entity 8 non-polymer

Description description	GUANOSINE-5'-DIPHOSPHATE
Molecular weight formula_weight	443.2 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 9 Entity 9 non-polymer

Description description	;(2~{S},4~{R})-4-[[2-[(1~{R},3~{R})-1-acetyloxy-3-[[(2~{S},3~{S})-2-[[(2~{R})-1,2-dimethylpyrrolidin-2-yl]carbonylamino]-3-methyl-pentanoyl]-methyl-amino]-4-methyl-pentyl]-1,3-thiazol-4-yl]carbonylamino]-5-(4-aminophenyl)-2-methyl-pentanoic acid ;
Molecular weight formula_weight	743.0 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 10 Entity 10 non-polymer

Description description	ADENOSINE-5'-DIPHOSPHATE
Molecular weight formula_weight	427.2 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 11 Entity 11 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	121

▼

6. Fold Classification (SCOP + CATH) 26 domains

SCOP 2.08 (10 domains)

Domain ID domain_id	d5kx5b1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.32 — Tubulin nucleotide-binding domain-like
Superfamily Superfamily superfamily	c.32.1 — Tubulin nucleotide-binding domain-like
Family Family family	c.32.1.1 — Tubulin, GTPase domain

Domain ID domain_id	d5kx5b2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.79 — Bacillus chorismate mutase-like
Superfamily Superfamily superfamily	d.79.2 — Tubulin C-terminal domain-like
Family Family family	d.79.2.1 — Tubulin, C-terminal domain

Domain ID domain_id	d5kx5c1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.32 — Tubulin nucleotide-binding domain-like
Superfamily Superfamily superfamily	c.32.1 — Tubulin nucleotide-binding domain-like
Family Family family	c.32.1.1 — Tubulin, GTPase domain

Domain ID domain_id	d5kx5c2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.79 — Bacillus chorismate mutase-like
Superfamily Superfamily superfamily	d.79.2 — Tubulin C-terminal domain-like
Family Family family	d.79.2.1 — Tubulin, C-terminal domain

Domain ID domain_id	d5kx5d1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.32 — Tubulin nucleotide-binding domain-like
Superfamily Superfamily superfamily	c.32.1 — Tubulin nucleotide-binding domain-like
Family Family family	c.32.1.1 — Tubulin, GTPase domain

Domain ID domain_id	d5kx5d2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.79 — Bacillus chorismate mutase-like
Superfamily Superfamily superfamily	d.79.2 — Tubulin C-terminal domain-like
Family Family family	d.79.2.1 — Tubulin, C-terminal domain

Domain ID domain_id	d5kx5e_
Class class	a — All alpha proteins
Fold Fold fold	a.137 — Non-globular all-alpha subunits of globular proteins
Superfamily Superfamily superfamily	a.137.10 — Stathmin
Family Family family	a.137.10.1 — Stathmin

Domain ID domain_id	d5kx5f1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.30 — PreATP-grasp domain
Superfamily Superfamily superfamily	c.30.1 — PreATP-grasp domain
Family Family family	c.30.1.9 — Tubulin tyrosine ligase (TTL) N-terminal domain-like

Domain ID domain_id	d5kx5f2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.142 — ATP-grasp
Superfamily Superfamily superfamily	d.142.1 — Glutathione synthetase ATP-binding domain-like
Family Family family	d.142.1.10 — Tubulin tyrosine ligase (TTL) C-terminal domain-like

Domain ID domain_id	d5kx5f3
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

CATH v4.4 (16 domains)

Domain ID domain_id	5kx5A01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1440 — Tubulin/FtsZ, GTPase domain

Domain ID domain_id	5kx5A02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	20 — Tubulin/FtsZ, C-terminal domain

Domain ID domain_id	5kx5A03
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	287 — Helix Hairpins
Homologous superfamily homologous superfamily	600 — Helix hairpin bin

Domain ID domain_id	5kx5B01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1440 — Tubulin/FtsZ, GTPase domain

Domain ID domain_id	5kx5B02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	20 — Tubulin/FtsZ, C-terminal domain

Domain ID domain_id	5kx5B03
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	287 — Helix Hairpins
Homologous superfamily homologous superfamily	600 — Helix hairpin bin

Domain ID domain_id	5kx5C01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1440 — Tubulin/FtsZ, GTPase domain

Domain ID domain_id	5kx5C02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	20 — Tubulin/FtsZ, C-terminal domain

Domain ID domain_id	5kx5C03
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	287 — Helix Hairpins
Homologous superfamily homologous superfamily	600 — Helix hairpin bin

Domain ID domain_id	5kx5D01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1440 — Tubulin/FtsZ, GTPase domain

Domain ID domain_id	5kx5D02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	20 — Tubulin/FtsZ, C-terminal domain

Domain ID domain_id	5kx5D03
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	287 — Helix Hairpins
Homologous superfamily homologous superfamily	600 — Helix hairpin bin

Domain ID domain_id	5kx5E01
Class class	6 — Special
Architecture architecture	10 — Helix non-globular
Topology topology	280 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	30 —

Domain ID domain_id	5kx5F01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	11480 —

Domain ID domain_id	5kx5F02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	470 — D-amino Acid Aminotransferase; Chain A, domain 1
Homologous superfamily homologous superfamily	20 — ATP-grasp fold, B domain

Domain ID domain_id	5kx5F03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1490 — Dna Ligase; domain 1
Homologous superfamily homologous superfamily	20 — ATP-grasp fold, A domain

▶

Unit-cell length a length_a	104.790 Å
Unit-cell length b length_b	153.900 Å
Unit-cell length c length_c	185.200 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	8

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.500 Å
Low-resolution limit resolution_low	38.470 Å
R factor r_factor	0.1996
R_work r_work	0.1969
R_free r_free	0.2514

Crystal structure of tubulin-stathmin-TTL-Compound 11 complex

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

Tubulin alpha 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

Stathmin-4

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

TTL protein

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

5kx5__assembly_1__model_1

5kx5__assembly_1__model_1 | I(q)

5kx5__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (11)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

Entity 4 Entity 4 polymer

Polymer Polymer

Source Source

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 non-polymer

Entity 8 Entity 8 non-polymer

Entity 9 Entity 9 non-polymer

Entity 10 Entity 10 non-polymer

Entity 11 Entity 11 water

6. Fold Classification (SCOP + CATH) 26 domains

SCOP 2.08 (10 domains)

CATH v4.4 (16 domains)

7. Citations (1)