6wcq

Structure of a substrate-bound DQC ubiquitin ligase

Method: ELECTRON MICROSCOPY Dmax: 130.7 Å Quality: GOOD

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

S-phase kinase-associated protein 1

Homo sapiens

UniProt P63208

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 1–163 Not recorded F-box/LRR-repeat protein 17 × 1 (Q9UF56) Kelch-like ECH-associated protein 1 × 1 (Q14145) Cullin-1 × 1 (Q13616) ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE-PROPANE cryo-EM vitrification conditions:Cryogen ETHANE-PROPANE Resolution 8.50 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

71 other PDB entries and 97 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name SKP1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–163; UniProt 1–163

F-box/LRR-repeat protein 17

Homo sapiens

UniProt Q9UF56

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain B; UniProt 310–701 Not recorded S-phase kinase-associated protein 1 × 1 (P63208) Kelch-like ECH-associated protein 1 × 1 (Q14145) Cullin-1 × 1 (Q13616) ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE-PROPANE cryo-EM vitrification conditions:Cryogen ETHANE-PROPANE Resolution 8.50 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

5 other PDB entries and 5 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name FXL17_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 5–396; UniProt 310–701

Kelch-like ECH-associated protein 1

Homo sapiens

UniProt Q14145

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain C; UniProt 1–624 Mutation:V99A S-phase kinase-associated protein 1 × 1 (P63208) F-box/LRR-repeat protein 17 × 1 (Q9UF56) Cullin-1 × 1 (Q13616) ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE-PROPANE cryo-EM vitrification conditions:Cryogen ETHANE-PROPANE Resolution 8.50 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

119 other PDB entries and 194 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name KEAP1_HUMAN
Isoform
PDB entities 3
Chains and sequence ranges Author chain C; PDBConstruct 8–631; UniProt 1–624

Cullin-1

Homo sapiens

UniProt Q13616

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain D; UniProt 1–434 Fragment:residues 1-434 S-phase kinase-associated protein 1 × 1 (P63208) F-box/LRR-repeat protein 17 × 1 (Q9UF56) Kelch-like ECH-associated protein 1 × 1 (Q14145) ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE-PROPANE cryo-EM vitrification conditions:Cryogen ETHANE-PROPANE Resolution 8.50 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

47 other PDB entries and 56 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CUL1_HUMAN
Isoform
PDB entities 4
Chains and sequence ranges Author chain D; PDBConstruct 1–434; UniProt 1–434

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.

SAXS scattering curve SAXS Profile

SAXS profile for 6wcq

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6wcq
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6wcq
Deposition date deposition_date2020-03-31
Structure title titleStructure of a substrate-bound DQC ubiquitin ligase
Keywords keywordsubiquitin, E3-ligase, multiprotein complex, substrate recognition, LIGASE; LIGASE
Experimental Method methodELECTRON MICROSCOPY

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier38.55
Radius of gyration Rg (electron density) rg_electron38.02
Forward intensity I(0) i0207957000.00
Molecular weight molecular_weight116150.0 kDa
Excluded volume excluded_volume145530 ų
Envelope volume envelope_volume211870 ų
Hydration-shell volume shell_volume47531 ų
Envelope diameter envelope_diameter135.5
Shell Rg shell_rg43.31
Envelope Rg envelope_rg36.95
Shape Rg shape_rg38.03
Total Rg total_rg38.34
Total atoms total_atoms8140
Residues n_residues1014
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax130.7
Rg (real space) rg_real38.49
Rg uncertainty (real space) rg_real_error1.06
I(0) (real space) i0_real2.0800e+08
I(0) uncertainty (real space) i0_real_error3.2060e+06
Rg (reciprocal space) rg_reciprocal38.53
I(0) (reciprocal space) i0_reciprocal208000000.0000
Solution quality estimate total_estimate0.8868
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary51.0
Skewness Skewness skewness0.226
Kurtosis Kurtosis kurtosis-0.428
Angular range angular_range— – 0.2050 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha16320000.0000
Real-space data points n_real_points42
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.859; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.994; Smooth: 0.953

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

8. Citations (1)

9. Files and Curves (10)