4ch9

Crystal structure of the human KLHL3 Kelch domain in complex with a WNK4 peptide

Method: X-RAY DIFFRACTION Dmax: 88.3 Å Quality: GOOD

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

KELCH-LIKE PROTEIN 3

HOMO SAPIENS

UniProt Q9UH77

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 298–587 Fragment:KELCH DOMAIN, RESIDUES 298-587 SERINE/THREONINE-PROTEIN KINASE WNK4 × 1 (Q96J92) SO4 SULFATE ION × 2 EDO 1,2-ETHANEDIOL × 1 CL CHLORIDE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 4.3;293 K;SITTING-DROP VAPOUR-DIFFUSTION, 25-35 % PEG 4000, 0.2 M AMMONIUM SULPHATE, 0.1 M ACETATE (PH 4.3), 293 K Resolution 1.84 Å R-free 0.184
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 298–587 Fragment:KELCH DOMAIN, RESIDUES 298-587 SERINE/THREONINE-PROTEIN KINASE WNK4 × 1 (Q96J92) SO4 SULFATE ION × 1 EDO 1,2-ETHANEDIOL × 1 CL CHLORIDE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 4.3;293 K;SITTING-DROP VAPOUR-DIFFUSTION, 25-35 % PEG 4000, 0.2 M AMMONIUM SULPHATE, 0.1 M ACETATE (PH 4.3), 293 K Resolution 1.84 Å R-free 0.184

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.

2 other PDB entries and 3 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name KLHL3_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 3–292; UniProt 298–587 Author chain B; PDBConstruct 3–292; UniProt 298–587

SERINE/THREONINE-PROTEIN KINASE WNK4

OrganismNot specified

UniProt Q96J92

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 D; UniProt 557–567 Fragment:RESIDUES 557-567 KELCH-LIKE PROTEIN 3 × 1 (Q9UH77) SO4 SULFATE ION × 2 EDO 1,2-ETHANEDIOL × 1 CL CHLORIDE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 4.3;293 K;SITTING-DROP VAPOUR-DIFFUSTION, 25-35 % PEG 4000, 0.2 M AMMONIUM SULPHATE, 0.1 M ACETATE (PH 4.3), 293 K Resolution 1.84 Å R-free 0.184
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 557–567 Fragment:RESIDUES 557-567 KELCH-LIKE PROTEIN 3 × 1 (Q9UH77) SO4 SULFATE ION × 1 EDO 1,2-ETHANEDIOL × 1 CL CHLORIDE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 4.3;293 K;SITTING-DROP VAPOUR-DIFFUSTION, 25-35 % PEG 4000, 0.2 M AMMONIUM SULPHATE, 0.1 M ACETATE (PH 4.3), 293 K Resolution 1.84 Å R-free 0.184

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.

2 other PDB entries and 4 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name WNK4_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain C; PDBConstruct 1–11; UniProt 557–567 Author chain D; PDBConstruct 1–11; UniProt 557–567

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 4ch9

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4ch9
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4ch9
Deposition date deposition_date2013-11-29
Structure title titleCrystal structure of the human KLHL3 Kelch domain in complex with a WNK4 peptide
Keywords keywordsSIGNALING PROTEIN-TRANSFERASE COMPLEX, KLHL3, UBIQUITIN, ADAPTOR PROTEIN, PROTEIN-BINDING, KELCH REPEAT, WNK SIGNALLING PATHWAY; SIGNALING PROTEIN/TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier26.74
Radius of gyration Rg (electron density) rg_electron26.48
Forward intensity I(0) i071254700.00
Molecular weight molecular_weight63468.0 kDa
Excluded volume excluded_volume78231 ų
Envelope volume envelope_volume92160 ų
Hydration-shell volume shell_volume29277 ų
Envelope diameter envelope_diameter92.4
Shell Rg shell_rg33.37
Envelope Rg envelope_rg26.56
Shape Rg shape_rg26.53
Total Rg total_rg27.04
Total atoms total_atoms4452
Residues n_residues590
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 dmax88.3
Rg (real space) rg_real26.80
Rg uncertainty (real space) rg_real_error0.70
I(0) (real space) i0_real7.1250e+07
I(0) uncertainty (real space) i0_real_error1.0540e+06
Rg (reciprocal space) rg_reciprocal26.79
I(0) (reciprocal space) i0_reciprocal71250000.0000
Solution quality estimate total_estimate0.7981
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary29.9
Skewness Skewness skewness0.413
Kurtosis Kurtosis kurtosis-0.387
Angular range angular_range— – 0.2950 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha13550000.0000
Real-space data points n_real_points60
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.810; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.941; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id4ch9A00
Class class2 — Mainly Beta
Architecture architecture120 — 6 Propeller
Topology topology10 — Neuraminidase
Homologous superfamily homologous superfamily80 — Kelch-type beta propeller
Domain ID domain_id4ch9B00
Class class2 — Mainly Beta
Architecture architecture120 — 6 Propeller
Topology topology10 — Neuraminidase
Homologous superfamily homologous superfamily80 — Kelch-type beta propeller

8. Citations (1)

9. Files and Curves (10)