7ai0

Crystal structure of human MDM2-G443T RING domain homodimer bound to UbcH5B-Ub (Crystal form 1)

Method: X-RAY DIFFRACTION Dmax: 115.3 Å Quality: GOOD

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

E3 ubiquitin-protein ligase Mdm2

Homo sapiens

UniProt Q00987

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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain AAA; UniProt 419–491 Chain DDD; UniProt 419–491 Mutation:G443T CL CHLORIDE ION × 3 ZN ZINC ION × 4 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8;292 K;0.1 M Tris, 0.075 M NaOAc, 0.1 M NaCl, 15 % w/v PEG Smear Medium Resolution 1.56 Å R-free 0.185
2 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain AAA; UniProt 419–491 Mutation:G443T Ubiquitin-conjugating enzyme E2 D2 × 1 (P62837) Polyubiquitin-B × 1 (P0CG47) CL CHLORIDE ION × 4 ZN ZINC ION × 2 EDO 1,2-ETHANEDIOL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8;292 K;0.1 M Tris, 0.075 M NaOAc, 0.1 M NaCl, 15 % w/v PEG Smear Medium Resolution 1.56 Å R-free 0.185
3 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain DDD; UniProt 419–491 Mutation:G443T Ubiquitin-conjugating enzyme E2 D2 × 1 (P62837) Polyubiquitin-B × 1 (P0CG47) CL CHLORIDE ION × 1 ZN ZINC ION × 2 EDO 1,2-ETHANEDIOL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8;292 K;0.1 M Tris, 0.075 M NaOAc, 0.1 M NaCl, 15 % w/v PEG Smear Medium Resolution 1.56 Å R-free 0.185

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.

142 other PDB entries and 276 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name MDM2_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain AAA; PDBConstruct 3–75; UniProt 419–491 Author chain DDD; PDBConstruct 3–75; UniProt 419–491

Ubiquitin-conjugating enzyme E2 D2

Homo sapiens

UniProt P62837

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
2 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain BBB; UniProt 1–147 Mutation:S22R, C85K E3 ubiquitin-protein ligase Mdm2 × 1 (Q00987) Polyubiquitin-B × 1 (P0CG47) CL CHLORIDE ION × 4 ZN ZINC ION × 2 EDO 1,2-ETHANEDIOL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8;292 K;0.1 M Tris, 0.075 M NaOAc, 0.1 M NaCl, 15 % w/v PEG Smear Medium Resolution 1.56 Å R-free 0.185
3 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain EEE; UniProt 1–147 Mutation:S22R, C85K E3 ubiquitin-protein ligase Mdm2 × 1 (Q00987) Polyubiquitin-B × 1 (P0CG47) CL CHLORIDE ION × 1 ZN ZINC ION × 2 EDO 1,2-ETHANEDIOL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8;292 K;0.1 M Tris, 0.075 M NaOAc, 0.1 M NaCl, 15 % w/v PEG Smear Medium Resolution 1.56 Å R-free 0.185

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.

57 other PDB entries and 91 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name UB2D2_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain BBB; PDBConstruct 1–147; UniProt 1–147 Author chain EEE; PDBConstruct 1–147; UniProt 1–147

Polyubiquitin-B

Homo sapiens

UniProt P0CG47

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
2 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain CCC; UniProt 75–152 Not recorded E3 ubiquitin-protein ligase Mdm2 × 1 (Q00987) Ubiquitin-conjugating enzyme E2 D2 × 1 (P62837) CL CHLORIDE ION × 4 ZN ZINC ION × 2 EDO 1,2-ETHANEDIOL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8;292 K;0.1 M Tris, 0.075 M NaOAc, 0.1 M NaCl, 15 % w/v PEG Smear Medium Resolution 1.56 Å R-free 0.185
3 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain FFF; UniProt 75–152 Not recorded E3 ubiquitin-protein ligase Mdm2 × 1 (Q00987) Ubiquitin-conjugating enzyme E2 D2 × 1 (P62837) CL CHLORIDE ION × 1 ZN ZINC ION × 2 EDO 1,2-ETHANEDIOL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8;292 K;0.1 M Tris, 0.075 M NaOAc, 0.1 M NaCl, 15 % w/v PEG Smear Medium Resolution 1.56 Å R-free 0.185

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.

278 other PDB entries and 428 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name UBB_HUMAN
Isoform
PDB entities 3
Chains and sequence ranges Author chain CCC; PDBConstruct 3–81; UniProt 75–152 Author chain FFF; PDBConstruct 3–81; UniProt 75–152

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.

SAXS scattering curve SAXS Profile

SAXS profile for 7ai0

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7ai0
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7ai0
Deposition date deposition_date2020-09-25
Structure title titleCrystal structure of human MDM2-G443T RING domain homodimer bound to UbcH5B-Ub (Crystal form 1)
Keywords keywordsUbiquitin ligase, RING E3, LIGASE; LIGASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier31.72
Radius of gyration Rg (electron density) rg_electron31.55
Forward intensity I(0) i066032100.00
Molecular weight molecular_weight65003.0 kDa
Excluded volume excluded_volume81799 ų
Envelope volume envelope_volume99628 ų
Hydration-shell volume shell_volume28822 ų
Envelope diameter envelope_diameter115.7
Shell Rg shell_rg35.29
Envelope Rg envelope_rg31.65
Shape Rg shape_rg31.64
Total Rg total_rg31.58
Total atoms total_atoms9202
Residues n_residues570
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 dmax115.3
Rg (real space) rg_real32.18
Rg uncertainty (real space) rg_real_error1.09
I(0) (real space) i0_real6.6030e+07
I(0) uncertainty (real space) i0_real_error1.0180e+06
Rg (reciprocal space) rg_reciprocal31.99
I(0) (reciprocal space) i0_reciprocal66020000.0000
Solution quality estimate total_estimate0.7744
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary27.7
Skewness Skewness skewness0.622
Kurtosis Kurtosis kurtosis-0.237
Angular range angular_range— – 0.2500 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha11780000.0000
Real-space data points n_real_points51
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.535; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.600; Smooth: 0.858

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

8. Citations (1)

9. Files and Curves (10)