SAXSdb — 8owi

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

Centromere-associated protein E

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CENPE_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 4–150； UniProt 2452–2598 Author chain B； PDBConstruct 4–150； UniProt 2452–2598

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	8owi
Deposition date deposition_date	2023-04-28
Structure title title	Crystal structure of the corona-targeting domain of CENP-E
Keywords keywords	Kinesin motor, kinetochores, microtubules, mitosis, CELL CYCLE; CELL CYCLE
Experimental Method method	X-RAY DIFFRACTION

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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.

8owi__assembly_1__model_1

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

Download this curve (.dat)

8owi__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

8owi__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	24.16 Å
Rg (electron density)	24.54 Å
Total Rg	24.89 Å
Atom count	919
Residues	109
Excluded volume	16672 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`8owi__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 (2)

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Unit-cell length a length_a	84.018 Å
Unit-cell length b length_b	84.018 Å
Unit-cell length c length_c	65.019 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	16

Space group space_group	P 42 21 2
Space-group number int_tables_number	94
Crystal system crystal_system	tetragonal

Resolution resolution	2.140 Å
Low-resolution limit resolution_low	51.420 Å
R factor r_factor	0.2176
R_work r_work	0.2161
R_free r_free	0.2455

Description description	Centromere-associated protein E
Molecular weight formula_weight	17388.9 kDa
Source method src_method	man
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	971

Crystal structure of the corona-targeting domain of CENP-E

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

Centromere-associated protein E

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

8owi__assembly_1__model_1

8owi__assembly_1__model_1 | I(q)

8owi__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

7. Citations (1)

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	52

Crystal structure of the corona-targeting domain of CENP-E

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

Centromere-associated protein E

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

8owi__assembly_1__model_1

8owi__assembly_1__model_1 | I(q)

8owi__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

7. Citations (1)