9axh

Crystal structure of KSR1/MEK1 complex heterotetramer with NST-628

Method: X-RAY DIFFRACTION Dmax: 153.8 Å Quality: REASONABLE

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

Dual specificity mitogen-activated protein kinase kinase 1

Homo sapiens

UniProt Q02750

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 37–263 Chain A; UniProt 308–383 Chain B; UniProt 37–263 Chain B; UniProt 308–383 Not recorded Kinase suppressor of Ras 1 × 2 (Q8IVT5) A1AHE N-[3-fluoro-4-({7-[(3-fluoropyridin-2-yl)oxy]-4-methyl-2-oxo-2H-1-benzopyran-3-yl}methyl)pyridin-2-yl]-N'-methylsulfuric diamide × 2 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 EDO 1,2-ETHANEDIOL × 1 CL CHLORIDE ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;291 K;0.1M SPG buffer pH 7.0, 25% w/v PEG 1500 Resolution 2.81 Å R-free 0.253

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.

92 other PDB entries and 122 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name MP2K1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–228; UniProt 37–263 Author chain A; PDBConstruct 235–310; UniProt 308–383 Author chain B; PDBConstruct 2–228; UniProt 37–263 Author chain B; PDBConstruct 235–310; UniProt 308–383

Kinase suppressor of Ras 1

Homo sapiens

UniProt Q8IVT5

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 601–882 Chain D; UniProt 601–882 Not recorded Dual specificity mitogen-activated protein kinase kinase 1 × 2 (Q02750) A1AHE N-[3-fluoro-4-({7-[(3-fluoropyridin-2-yl)oxy]-4-methyl-2-oxo-2H-1-benzopyran-3-yl}methyl)pyridin-2-yl]-N'-methylsulfuric diamide × 2 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 4 MG MAGNESIUM ION × 4 EDO 1,2-ETHANEDIOL × 1 CL CHLORIDE ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;291 K;0.1M SPG buffer pH 7.0, 25% w/v PEG 1500 Resolution 2.81 Å R-free 0.253

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.

7 other PDB entries and 7 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name KSR1_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain C; PDBConstruct 2–283; UniProt 601–882 Author chain D; PDBConstruct 2–283; UniProt 601–882

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 9axh

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9axh
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9axh
Deposition date deposition_date2024-03-06
Structure title titleCrystal structure of KSR1/MEK1 complex heterotetramer with NST-628
Keywords keywordsInhibitor, complex, SIGNALING PROTEIN, transferase; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier46.14
Radius of gyration Rg (electron density) rg_electron47.39
Forward intensity I(0) i0223831000.00
Molecular weight molecular_weight120250.0 kDa
Excluded volume excluded_volume149380 ų
Envelope volume envelope_volume203040 ų
Hydration-shell volume shell_volume41161 ų
Envelope diameter envelope_diameter163.1
Shell Rg shell_rg42.59
Envelope Rg envelope_rg46.96
Shape Rg shape_rg47.39
Total Rg total_rg47.15
Total atoms total_atoms8443
Residues n_residues1108
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 dmax153.8
Rg (real space) rg_real47.08
Rg uncertainty (real space) rg_real_error1.68
I(0) (real space) i0_real2.2380e+08
I(0) uncertainty (real space) i0_real_error4.3200e+06
Rg (reciprocal space) rg_reciprocal46.15
I(0) (reciprocal space) i0_reciprocal223600000.0000
Solution quality estimate total_estimate0.6883
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary31.7
Skewness Skewness skewness0.610
Kurtosis Kurtosis kurtosis-0.513
Angular range angular_range— – 0.1700 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha15290000.0000
Real-space data points n_real_points35
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.484; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.458; Smooth: 0.035

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (8)

8. Citations (1)

9. Files and Curves (10)