8bot

Cryo-EM structure of NHEJ supercomplex(trimer)

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

DNA repair protein XRCC4

Homo sapiens

UniProt Q13426

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Heteromer Protein 19 DNA 6 DNA ligase 4 × 2 (P49917) Non-homologous end-joining factor 1 × 4 (Q9H9Q4) DNA-dependent protein kinase catalytic subunit × 3 (P78527) X-ray repair cross-complementing protein 6 × 3 (P12956) X-ray repair cross-complementing protein 5 × 3 (P13010) DNA (28-MER) × 2 DNA (27-MER) × 2 DNA (24-MER) × 1 DNA (24-MER) × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name XRCC4_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain K; PDBConstruct 1–336; UniProt 1–336 Author chain L; PDBConstruct 1–336; UniProt 1–336 Author chain N; PDBConstruct 1–336; UniProt 1–336 Author chain O; PDBConstruct 1–336; UniProt 1–336

DNA ligase 4

Homo sapiens

UniProt P49917

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Heteromer Protein 19 DNA 6 DNA repair protein XRCC4 × 4 (Q13426) Non-homologous end-joining factor 1 × 4 (Q9H9Q4) DNA-dependent protein kinase catalytic subunit × 3 (P78527) X-ray repair cross-complementing protein 6 × 3 (P12956) X-ray repair cross-complementing protein 5 × 3 (P13010) DNA (28-MER) × 2 DNA (27-MER) × 2 DNA (24-MER) × 1 DNA (24-MER) × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name DNLI4_HUMAN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain M; PDBConstruct 1–911; UniProt 1–911 Author chain P; PDBConstruct 1–911; UniProt 1–911

Non-homologous end-joining factor 1

Homo sapiens

UniProt Q9H9Q4

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Heteromer Protein 19 DNA 6 DNA repair protein XRCC4 × 4 (Q13426) DNA ligase 4 × 2 (P49917) DNA-dependent protein kinase catalytic subunit × 3 (P78527) X-ray repair cross-complementing protein 6 × 3 (P12956) X-ray repair cross-complementing protein 5 × 3 (P13010) DNA (28-MER) × 2 DNA (27-MER) × 2 DNA (24-MER) × 1 DNA (24-MER) × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name NHEJ1_HUMAN
Isoform —
PDB entities 3
Chains and sequence ranges Author chain Q; PDBConstruct 1–299; UniProt 1–299 Author chain R; PDBConstruct 1–299; UniProt 1–299 Author chain X; PDBConstruct 1–299; UniProt 1–299 Author chain Y; PDBConstruct 1–299; UniProt 1–299

DNA-dependent protein kinase catalytic subunit

OrganismNot specified

UniProt P78527

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Heteromer Protein 19 DNA 6 DNA repair protein XRCC4 × 4 (Q13426) DNA ligase 4 × 2 (P49917) Non-homologous end-joining factor 1 × 4 (Q9H9Q4) X-ray repair cross-complementing protein 6 × 3 (P12956) X-ray repair cross-complementing protein 5 × 3 (P13010) DNA (28-MER) × 2 DNA (27-MER) × 2 DNA (24-MER) × 1 DNA (24-MER) × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PRKDC_HUMAN
Isoform —
PDB entities 4
Chains and sequence ranges Author chain A; PDBConstruct 1–4128; UniProt 1–4128 Author chain F; PDBConstruct 1–4128; UniProt 1–4128 Author chain S; PDBConstruct 1–4128; UniProt 1–4128

X-ray repair cross-complementing protein 6

Homo sapiens

UniProt P12956

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Heteromer Protein 19 DNA 6 DNA repair protein XRCC4 × 4 (Q13426) DNA ligase 4 × 2 (P49917) Non-homologous end-joining factor 1 × 4 (Q9H9Q4) DNA-dependent protein kinase catalytic subunit × 3 (P78527) X-ray repair cross-complementing protein 5 × 3 (P13010) DNA (28-MER) × 2 DNA (27-MER) × 2 DNA (24-MER) × 1 DNA (24-MER) × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name XRCC6_HUMAN
Isoform —
PDB entities 5
Chains and sequence ranges Author chain B; PDBConstruct 1–609; UniProt 1–609 Author chain G; PDBConstruct 1–609; UniProt 1–609 Author chain T; PDBConstruct 1–609; UniProt 1–609

X-ray repair cross-complementing protein 5

Homo sapiens

UniProt P13010

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Heteromer Protein 19 DNA 6 DNA repair protein XRCC4 × 4 (Q13426) DNA ligase 4 × 2 (P49917) Non-homologous end-joining factor 1 × 4 (Q9H9Q4) DNA-dependent protein kinase catalytic subunit × 3 (P78527) X-ray repair cross-complementing protein 6 × 3 (P12956) DNA (28-MER) × 2 DNA (27-MER) × 2 DNA (24-MER) × 1 DNA (24-MER) × 1 Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name XRCC5_HUMAN
Isoform —
PDB entities 6
Chains and sequence ranges Author chain C; PDBConstruct 1–732; UniProt 1–732 Author chain H; PDBConstruct 1–732; UniProt 1–732 Author chain U; PDBConstruct 1–732; UniProt 1–732

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_id8bot
Deposition date deposition_date2022-11-15
Structure title titleCryo-EM structure of NHEJ supercomplex(trimer)
Keywords keywordsNHEJ, DNA-PK, DNA-PKcs, Ku70, Ku80, XLF, DNA repair, DNA BINDING PROTEIN; DNA BINDING 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.

8bot__assembly_1__model_1

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

Download this curve (.dat)

8bot__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 1010 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

8bot__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)0.00 Å
Rg (electron density)117.70 Å
Total Rg117.70 Å
Atom count129197
Residues16164
Excluded volume2309700 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 8bot__assembly_1__model_1 25-meric (25) 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 (10)

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7. Citations (1)