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4nqk

Structure of an Ubiquitin complex

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Probable ATP-dependent RNA helicase DDX58

Homo sapiens

UniProt O95786

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 10 Ubiquitin × 6 （P0CG48） Consistent with protein count

Other States of the Same Protein in the Database

Monomer
2lwd 2lwe 2qfb 2qfb 2qfb 2qfb 2qfb 2qfb 2qfb 2qfb 2qfb 2qfb

25 assemblies; showing the first 12

Homodimer
4on9

1 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
2ykg 3lrn 3lrr 3ncu 3og8 3zd6 3zd7 4ay2 4bpb 4nqk 4p4h 5e3h

45 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name DDX58_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 4–203； UniProt 1–200 Author chain B； PDBConstruct 4–203； UniProt 1–200 Author chain C； PDBConstruct 4–203； UniProt 1–200 Author chain D； PDBConstruct 4–203； UniProt 1–200

Ubiquitin

Homo sapiens

UniProt P0CG48

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 10 Probable ATP-dependent RNA helicase DDX58 × 4 （O95786） Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1ogw 2l3z 2ld9 2mi8 2mor 2rsu 2ru6 4boz 4dhj 4dhj 4dhz 4hk2

52 assemblies; showing the first 12

Homodimer
2mbo 2mbq 2n2k 3aul 4zqs

5 assemblies

Homotetramer
3alb 8e7o

2 assemblies

Other homooligomers

None

Heteromeric or nucleic-acid complex
11sy 2lvo 2lvp 2lvq 2lz6 2mcn 2mj5 2mre 2mws 2rr9 3b08 3b08

290 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name UBC_HUMAN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain E； PDBConstruct 3–79； UniProt 76–152 Author chain F； PDBConstruct 3–79； UniProt 76–152 Author chain G； PDBConstruct 3–79； UniProt 76–152 Author chain H； PDBConstruct 3–79； UniProt 76–152 Author chain I； PDBConstruct 3–79； UniProt 76–152 Author chain J； PDBConstruct 3–79； UniProt 76–152

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_id4nqk
Deposition date deposition_date2013-11-25
Structure title titleStructure of an Ubiquitin complex
Keywords keywordsCARD domain, Hydrolase-Apoptosis complex; Hydrolase/Apoptosis
Experimental Method methodX-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.

4nqk__assembly_1__model_1

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

Download this curve (.dat)

4nqk__assembly_1__model_1 | I(q)

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

4nqk__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）34.67 Å
Rg (electron density)33.82 Å
Total Rg34.48 Å
Atom count19139
Residues1187
Excluded volume172060 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 4nqk__assembly_1__model_1 decameric （10） 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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6. Fold Classification (SCOP + CATH) 12 domains

CATH v4.4 (12 domains)

Domain ID domain_id4nqkA01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology533 — Death Domain, Fas
Homologous superfamily homologous superfamily10 — Death Domain, Fas
Domain ID domain_id4nqkA02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology533 — Death Domain, Fas
Homologous superfamily homologous superfamily10 — Death Domain, Fas
Domain ID domain_id4nqkB01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology533 — Death Domain, Fas
Homologous superfamily homologous superfamily10 — Death Domain, Fas
Domain ID domain_id4nqkB02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology533 — Death Domain, Fas
Homologous superfamily homologous superfamily10 — Death Domain, Fas
Domain ID domain_id4nqkC01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology533 — Death Domain, Fas
Homologous superfamily homologous superfamily10 — Death Domain, Fas
Domain ID domain_id4nqkC02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology533 — Death Domain, Fas
Homologous superfamily homologous superfamily10 — Death Domain, Fas
Domain ID domain_id4nqkD01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology533 — Death Domain, Fas
Homologous superfamily homologous superfamily10 — Death Domain, Fas
Domain ID domain_id4nqkD02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology533 — Death Domain, Fas
Homologous superfamily homologous superfamily10 — Death Domain, Fas
Domain ID domain_id4nqkE00
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily90 — Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 1
Domain ID domain_id4nqkF00
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily90 — Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 1
Domain ID domain_id4nqkH00
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily90 — Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 1
Domain ID domain_id4nqkJ00
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily90 — Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 1
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7. Citations (1)