7xho

Structure of human inner kinetochore CCAN complex

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

Centromere protein C

Homo sapiens

UniProt Q03188

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 17 Centromere protein H × 1 (Q9H3R5) Centromere protein I × 1 (Q92674) Centromere protein K × 1 (Q9BS16) Centromere protein L × 1 (Q8N0S6) Centromere protein M × 1 (Q9NSP4) Centromere protein N × 1 (Q96H22) Centromere protein O × 1 (Q9BU64) Centromere protein P × 1 (Q6IPU0) Centromere protein Q × 1 (Q7L2Z9) Centromere protein S × 1 (Q8N2Z9) Centromere protein T × 1 (Q96BT3) CENP-W × 1 (Q5EE01) Centromere protein X × 1 (A8MT69) Centromere protein R × 1 (Q13352) Centromere protein U × 1 (Q71F23) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CENPC_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain C; PDBConstruct 1–943; UniProt 1–943 Author chain c; PDBConstruct 1–943; UniProt 1–943

Centromere protein H

Homo sapiens

UniProt Q9H3R5

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 17 Centromere protein C × 2 (Q03188) Centromere protein I × 1 (Q92674) Centromere protein K × 1 (Q9BS16) Centromere protein L × 1 (Q8N0S6) Centromere protein M × 1 (Q9NSP4) Centromere protein N × 1 (Q96H22) Centromere protein O × 1 (Q9BU64) Centromere protein P × 1 (Q6IPU0) Centromere protein Q × 1 (Q7L2Z9) Centromere protein S × 1 (Q8N2Z9) Centromere protein T × 1 (Q96BT3) CENP-W × 1 (Q5EE01) Centromere protein X × 1 (A8MT69) Centromere protein R × 1 (Q13352) Centromere protein U × 1 (Q71F23) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CENPH_HUMAN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain H; PDBConstruct 1–247; UniProt 1–247

Centromere protein I

Homo sapiens

UniProt Q92674

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 17 Centromere protein C × 2 (Q03188) Centromere protein H × 1 (Q9H3R5) Centromere protein K × 1 (Q9BS16) Centromere protein L × 1 (Q8N0S6) Centromere protein M × 1 (Q9NSP4) Centromere protein N × 1 (Q96H22) Centromere protein O × 1 (Q9BU64) Centromere protein P × 1 (Q6IPU0) Centromere protein Q × 1 (Q7L2Z9) Centromere protein S × 1 (Q8N2Z9) Centromere protein T × 1 (Q96BT3) CENP-W × 1 (Q5EE01) Centromere protein X × 1 (A8MT69) Centromere protein R × 1 (Q13352) Centromere protein U × 1 (Q71F23) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CENPI_HUMAN
Isoform —
PDB entities 3
Chains and sequence ranges Author chain I; PDBConstruct 1–756; UniProt 1–756

Centromere protein K

Homo sapiens

UniProt Q9BS16

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 17 Centromere protein C × 2 (Q03188) Centromere protein H × 1 (Q9H3R5) Centromere protein I × 1 (Q92674) Centromere protein L × 1 (Q8N0S6) Centromere protein M × 1 (Q9NSP4) Centromere protein N × 1 (Q96H22) Centromere protein O × 1 (Q9BU64) Centromere protein P × 1 (Q6IPU0) Centromere protein Q × 1 (Q7L2Z9) Centromere protein S × 1 (Q8N2Z9) Centromere protein T × 1 (Q96BT3) CENP-W × 1 (Q5EE01) Centromere protein X × 1 (A8MT69) Centromere protein R × 1 (Q13352) Centromere protein U × 1 (Q71F23) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CENPK_HUMAN
Isoform —
PDB entities 4
Chains and sequence ranges Author chain K; PDBConstruct 1–269; UniProt 1–269

Centromere protein L

Homo sapiens

UniProt Q8N0S6

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 17 Centromere protein C × 2 (Q03188) Centromere protein H × 1 (Q9H3R5) Centromere protein I × 1 (Q92674) Centromere protein K × 1 (Q9BS16) Centromere protein M × 1 (Q9NSP4) Centromere protein N × 1 (Q96H22) Centromere protein O × 1 (Q9BU64) Centromere protein P × 1 (Q6IPU0) Centromere protein Q × 1 (Q7L2Z9) Centromere protein S × 1 (Q8N2Z9) Centromere protein T × 1 (Q96BT3) CENP-W × 1 (Q5EE01) Centromere protein X × 1 (A8MT69) Centromere protein R × 1 (Q13352) Centromere protein U × 1 (Q71F23) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CENPL_HUMAN
Isoform —
PDB entities 5
Chains and sequence ranges Author chain L; PDBConstruct 1–344; UniProt 1–344

Centromere protein M

Homo sapiens

UniProt Q9NSP4

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 17 Centromere protein C × 2 (Q03188) Centromere protein H × 1 (Q9H3R5) Centromere protein I × 1 (Q92674) Centromere protein K × 1 (Q9BS16) Centromere protein L × 1 (Q8N0S6) Centromere protein N × 1 (Q96H22) Centromere protein O × 1 (Q9BU64) Centromere protein P × 1 (Q6IPU0) Centromere protein Q × 1 (Q7L2Z9) Centromere protein S × 1 (Q8N2Z9) Centromere protein T × 1 (Q96BT3) CENP-W × 1 (Q5EE01) Centromere protein X × 1 (A8MT69) Centromere protein R × 1 (Q13352) Centromere protein U × 1 (Q71F23) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CENPM_HUMAN
Isoform —
PDB entities 6
Chains and sequence ranges Author chain M; PDBConstruct 1–180; UniProt 1–180

Centromere protein N

Homo sapiens

UniProt Q96H22

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 17 Centromere protein C × 2 (Q03188) Centromere protein H × 1 (Q9H3R5) Centromere protein I × 1 (Q92674) Centromere protein K × 1 (Q9BS16) Centromere protein L × 1 (Q8N0S6) Centromere protein M × 1 (Q9NSP4) Centromere protein O × 1 (Q9BU64) Centromere protein P × 1 (Q6IPU0) Centromere protein Q × 1 (Q7L2Z9) Centromere protein S × 1 (Q8N2Z9) Centromere protein T × 1 (Q96BT3) CENP-W × 1 (Q5EE01) Centromere protein X × 1 (A8MT69) Centromere protein R × 1 (Q13352) Centromere protein U × 1 (Q71F23) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CENPN_HUMAN
Isoform —
PDB entities 7
Chains and sequence ranges Author chain N; PDBConstruct 1–339; UniProt 1–339

Centromere protein O

Homo sapiens

UniProt Q9BU64

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 17 Centromere protein C × 2 (Q03188) Centromere protein H × 1 (Q9H3R5) Centromere protein I × 1 (Q92674) Centromere protein K × 1 (Q9BS16) Centromere protein L × 1 (Q8N0S6) Centromere protein M × 1 (Q9NSP4) Centromere protein N × 1 (Q96H22) Centromere protein P × 1 (Q6IPU0) Centromere protein Q × 1 (Q7L2Z9) Centromere protein S × 1 (Q8N2Z9) Centromere protein T × 1 (Q96BT3) CENP-W × 1 (Q5EE01) Centromere protein X × 1 (A8MT69) Centromere protein R × 1 (Q13352) Centromere protein U × 1 (Q71F23) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CENPO_HUMAN
Isoform —
PDB entities 8
Chains and sequence ranges Author chain O; PDBConstruct 1–300; UniProt 1–300

Centromere protein P

Homo sapiens

UniProt Q6IPU0

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 17 Centromere protein C × 2 (Q03188) Centromere protein H × 1 (Q9H3R5) Centromere protein I × 1 (Q92674) Centromere protein K × 1 (Q9BS16) Centromere protein L × 1 (Q8N0S6) Centromere protein M × 1 (Q9NSP4) Centromere protein N × 1 (Q96H22) Centromere protein O × 1 (Q9BU64) Centromere protein Q × 1 (Q7L2Z9) Centromere protein S × 1 (Q8N2Z9) Centromere protein T × 1 (Q96BT3) CENP-W × 1 (Q5EE01) Centromere protein X × 1 (A8MT69) Centromere protein R × 1 (Q13352) Centromere protein U × 1 (Q71F23) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CENPP_HUMAN
Isoform —
PDB entities 9
Chains and sequence ranges Author chain P; PDBConstruct 1–288; UniProt 1–288

Centromere protein Q

Homo sapiens

UniProt Q7L2Z9

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 17 Centromere protein C × 2 (Q03188) Centromere protein H × 1 (Q9H3R5) Centromere protein I × 1 (Q92674) Centromere protein K × 1 (Q9BS16) Centromere protein L × 1 (Q8N0S6) Centromere protein M × 1 (Q9NSP4) Centromere protein N × 1 (Q96H22) Centromere protein O × 1 (Q9BU64) Centromere protein P × 1 (Q6IPU0) Centromere protein S × 1 (Q8N2Z9) Centromere protein T × 1 (Q96BT3) CENP-W × 1 (Q5EE01) Centromere protein X × 1 (A8MT69) Centromere protein R × 1 (Q13352) Centromere protein U × 1 (Q71F23) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CENPQ_HUMAN
Isoform —
PDB entities 10
Chains and sequence ranges Author chain Q; PDBConstruct 1–268; UniProt 1–268

Centromere protein S

Homo sapiens

UniProt Q8N2Z9

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 17 Centromere protein C × 2 (Q03188) Centromere protein H × 1 (Q9H3R5) Centromere protein I × 1 (Q92674) Centromere protein K × 1 (Q9BS16) Centromere protein L × 1 (Q8N0S6) Centromere protein M × 1 (Q9NSP4) Centromere protein N × 1 (Q96H22) Centromere protein O × 1 (Q9BU64) Centromere protein P × 1 (Q6IPU0) Centromere protein Q × 1 (Q7L2Z9) Centromere protein T × 1 (Q96BT3) CENP-W × 1 (Q5EE01) Centromere protein X × 1 (A8MT69) Centromere protein R × 1 (Q13352) Centromere protein U × 1 (Q71F23) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CENPS_HUMAN
Isoform —
PDB entities 11
Chains and sequence ranges Author chain S; PDBConstruct 1–138; UniProt 1–138

Centromere protein T

Homo sapiens

UniProt Q96BT3

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 17 Centromere protein C × 2 (Q03188) Centromere protein H × 1 (Q9H3R5) Centromere protein I × 1 (Q92674) Centromere protein K × 1 (Q9BS16) Centromere protein L × 1 (Q8N0S6) Centromere protein M × 1 (Q9NSP4) Centromere protein N × 1 (Q96H22) Centromere protein O × 1 (Q9BU64) Centromere protein P × 1 (Q6IPU0) Centromere protein Q × 1 (Q7L2Z9) Centromere protein S × 1 (Q8N2Z9) CENP-W × 1 (Q5EE01) Centromere protein X × 1 (A8MT69) Centromere protein R × 1 (Q13352) Centromere protein U × 1 (Q71F23) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CENPT_HUMAN
Isoform —
PDB entities 12
Chains and sequence ranges Author chain T; PDBConstruct 1–561; UniProt 1–561

CENP-W

Homo sapiens

UniProt Q5EE01

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 17 Centromere protein C × 2 (Q03188) Centromere protein H × 1 (Q9H3R5) Centromere protein I × 1 (Q92674) Centromere protein K × 1 (Q9BS16) Centromere protein L × 1 (Q8N0S6) Centromere protein M × 1 (Q9NSP4) Centromere protein N × 1 (Q96H22) Centromere protein O × 1 (Q9BU64) Centromere protein P × 1 (Q6IPU0) Centromere protein Q × 1 (Q7L2Z9) Centromere protein S × 1 (Q8N2Z9) Centromere protein T × 1 (Q96BT3) Centromere protein X × 1 (A8MT69) Centromere protein R × 1 (Q13352) Centromere protein U × 1 (Q71F23) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CENPW_HUMAN
Isoform —
PDB entities 13
Chains and sequence ranges Author chain W; PDBConstruct 1–88; UniProt 1–88

Centromere protein X

Homo sapiens

UniProt A8MT69

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 17 Centromere protein C × 2 (Q03188) Centromere protein H × 1 (Q9H3R5) Centromere protein I × 1 (Q92674) Centromere protein K × 1 (Q9BS16) Centromere protein L × 1 (Q8N0S6) Centromere protein M × 1 (Q9NSP4) Centromere protein N × 1 (Q96H22) Centromere protein O × 1 (Q9BU64) Centromere protein P × 1 (Q6IPU0) Centromere protein Q × 1 (Q7L2Z9) Centromere protein S × 1 (Q8N2Z9) Centromere protein T × 1 (Q96BT3) CENP-W × 1 (Q5EE01) Centromere protein R × 1 (Q13352) Centromere protein U × 1 (Q71F23) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CENPX_HUMAN
Isoform —
PDB entities 14
Chains and sequence ranges Author chain X; PDBConstruct 1–81; UniProt 1–81

Centromere protein R

Homo sapiens

UniProt Q13352

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 17 Centromere protein C × 2 (Q03188) Centromere protein H × 1 (Q9H3R5) Centromere protein I × 1 (Q92674) Centromere protein K × 1 (Q9BS16) Centromere protein L × 1 (Q8N0S6) Centromere protein M × 1 (Q9NSP4) Centromere protein N × 1 (Q96H22) Centromere protein O × 1 (Q9BU64) Centromere protein P × 1 (Q6IPU0) Centromere protein Q × 1 (Q7L2Z9) Centromere protein S × 1 (Q8N2Z9) Centromere protein T × 1 (Q96BT3) CENP-W × 1 (Q5EE01) Centromere protein X × 1 (A8MT69) Centromere protein U × 1 (Q71F23) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CENPR_HUMAN
Isoform —
PDB entities 15
Chains and sequence ranges Author chain R; PDBConstruct 1–177; UniProt 1–177

Centromere protein U

Homo sapiens

UniProt Q71F23

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 17 Centromere protein C × 2 (Q03188) Centromere protein H × 1 (Q9H3R5) Centromere protein I × 1 (Q92674) Centromere protein K × 1 (Q9BS16) Centromere protein L × 1 (Q8N0S6) Centromere protein M × 1 (Q9NSP4) Centromere protein N × 1 (Q96H22) Centromere protein O × 1 (Q9BU64) Centromere protein P × 1 (Q6IPU0) Centromere protein Q × 1 (Q7L2Z9) Centromere protein S × 1 (Q8N2Z9) Centromere protein T × 1 (Q96BT3) CENP-W × 1 (Q5EE01) Centromere protein X × 1 (A8MT69) Centromere protein R × 1 (Q13352) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CENPU_HUMAN
Isoform —
PDB entities 16
Chains and sequence ranges Author chain U; PDBConstruct 1–418; UniProt 1–418

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_id7xho
Deposition date deposition_date2022-04-09
Structure title titleStructure of human inner kinetochore CCAN complex
Keywords keywordsCELL CYCLE; CELL CYCLE
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.

7xho__assembly_1__model_1

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

Download this curve (.dat)

7xho__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

7xho__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)56.42 Å
Rg (electron density)55.74 Å
Total Rg55.75 Å
Atom count22243
Residues2876
Excluded volume397700 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 7xho__assembly_1__model_1 heptadecameric (17) 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 (16)

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6. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

Domain ID domain_id7xhoM01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
Domain ID domain_id7xhoS01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology20 — Histone, subunit A
Homologous superfamily homologous superfamily10 — Histone, subunit A
Domain ID domain_id7xhoW01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology20 — Histone, subunit A
Homologous superfamily homologous superfamily10 — Histone, subunit A
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7. Citations (1)