3i7o

Crystal Structure of DDB1 in Complex with the H-Box Motif of IQWD1

Method: X-RAY DIFFRACTION Dmax: 110.0 Å Quality: REASONABLE

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

DNA damage-binding protein 1

Homo sapiens

UniProt Q16531

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 × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–1140 Not recorded IQ motif and WD repeat-containing protein 1 × 1 (Q58WW2) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;277 K;16% PEG 4000, 0.2M SODIUM CHLORIDE, 0.1M MES, 0.005M DTT, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K Resolution 2.80 Å R-free 0.320

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.

202 other PDB entries and 290 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name DDB1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 4–1143; UniProt 1–1140

IQ motif and WD repeat-containing protein 1

OrganismNot specified

UniProt Q58WW2

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 × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 9–21 Fragment:Residues 9-21 DNA damage-binding protein 1 × 1 (Q16531) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;277 K;16% PEG 4000, 0.2M SODIUM CHLORIDE, 0.1M MES, 0.005M DTT, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K Resolution 2.80 Å R-free 0.320

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.

No other PDB entry for the same UniProt protein was found.

View Construct and Data Evidence
UniProt name IQWD1_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–13; UniProt 9–21

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 3i7o

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3i7o
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3i7o
Deposition date deposition_date2009-07-08
Structure title titleCrystal Structure of DDB1 in Complex with the H-Box Motif of IQWD1
Keywords keywords;DDB1, IQWD1, DCAF6, H-Box Motif, Cytoplasm, DNA damage, DNA repair, DNA-binding, Host-virus interaction, Nucleus, Phosphoprotein, Polymorphism, Ubl conjugation, Ubl conjugation pathway, Alternative splicing, WD repeat, PROTEIN BINDING ;; PROTEIN BINDING
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier34.62
Radius of gyration Rg (electron density) rg_electron33.81
Forward intensity I(0) i0241113000.00
Molecular weight molecular_weight125750.0 kDa
Excluded volume excluded_volume157840 ų
Envelope volume envelope_volume201910 ų
Hydration-shell volume shell_volume49398 ų
Envelope diameter envelope_diameter111.4
Shell Rg shell_rg40.74
Envelope Rg envelope_rg33.65
Shape Rg shape_rg33.81
Total Rg total_rg34.31
Total atoms total_atoms8838
Residues n_residues1127
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 dmax110.0
Rg (real space) rg_real34.54
Rg uncertainty (real space) rg_real_error0.72
I(0) (real space) i0_real2.4110e+08
I(0) uncertainty (real space) i0_real_error3.3960e+06
Rg (reciprocal space) rg_reciprocal34.59
I(0) (reciprocal space) i0_reciprocal241100000.0000
Solution quality estimate total_estimate0.6808
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary38.3
Skewness Skewness skewness0.228
Kurtosis Kurtosis kurtosis-0.546
Angular range angular_range— – 0.2300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha57250000.0000
Real-space data points n_real_points47
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.933; Stabil: 1.000; Sysdev: 0.038; Positv: 1.000; Valcen: 0.998; Smooth: 0.935

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id3i7oA01
Class class2 — Mainly Beta
Architecture architecture130 — 7 Propeller
Topology topology10 — Methylamine Dehydrogenase; Chain H
Homologous superfamily homologous superfamily10 — YVTN repeat-like/Quinoprotein amine dehydrogenase
Domain ID domain_id3i7oA02
Class class2 — Mainly Beta
Architecture architecture130 — 7 Propeller
Topology topology10 — Methylamine Dehydrogenase; Chain H
Homologous superfamily homologous superfamily10 — YVTN repeat-like/Quinoprotein amine dehydrogenase
Domain ID domain_id3i7oA03
Class class2 — Mainly Beta
Architecture architecture130 — 7 Propeller
Topology topology10 — Methylamine Dehydrogenase; Chain H
Homologous superfamily homologous superfamily10 — YVTN repeat-like/Quinoprotein amine dehydrogenase
Domain ID domain_id3i7oA04
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology150 — DNA polymerase; domain 1
Homologous superfamily homologous superfamily910

8. Citations (1)

9. Files and Curves (10)