9o2z

Autoinhibited BRAF:(14-3-3)2:MEK complex from Insect cells

Method: ELECTRON MICROSCOPY Dmax: 119.7 Å Quality: GOOD

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

Serine/threonine-protein kinase B-raf

Homo sapiens

UniProt P15056

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 1–766 Non-standard monomer:Yes (specific site not provided by mmCIF) Dual specificity mitogen-activated protein kinase kinase 1 × 1 (Q02750) 14-3-3 protein zeta/delta × 2 (P63104) ZN ZINC ION × 2 CHU N-(3-fluoro-4-{[4-methyl-2-oxo-7-(pyrimidin-2-yloxy)-2H-chromen-3-yl]methyl}pyridin-2-yl)-N'-methylsulfuric diamide × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.83 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.

122 other PDB entries and 190 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name BRAF_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–766; UniProt 1–766

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 B; UniProt 1–393 Not recorded Serine/threonine-protein kinase B-raf × 1 (P15056) 14-3-3 protein zeta/delta × 2 (P63104) ZN ZINC ION × 2 CHU N-(3-fluoro-4-{[4-methyl-2-oxo-7-(pyrimidin-2-yloxy)-2H-chromen-3-yl]methyl}pyridin-2-yl)-N'-methylsulfuric diamide × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.83 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.

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 2
Chains and sequence ranges Author chain B; PDBConstruct 1–393; UniProt 1–393

14-3-3 protein zeta/delta

Homo sapiens

UniProt P63104

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 1–245 Chain D; UniProt 1–245 Not recorded Serine/threonine-protein kinase B-raf × 1 (P15056) Dual specificity mitogen-activated protein kinase kinase 1 × 1 (Q02750) ZN ZINC ION × 2 CHU N-(3-fluoro-4-{[4-methyl-2-oxo-7-(pyrimidin-2-yloxy)-2H-chromen-3-yl]methyl}pyridin-2-yl)-N'-methylsulfuric diamide × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.83 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.

73 other PDB entries and 88 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name 1433Z_HUMAN
Isoform
PDB entities 3
Chains and sequence ranges Author chain C; PDBConstruct 1–245; UniProt 1–245 Author chain D; PDBConstruct 1–245; UniProt 1–245

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 9o2z

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9o2z
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9o2z
Deposition date deposition_date2025-04-04
Structure title titleAutoinhibited BRAF:(14-3-3)2:MEK complex from Insect cells
Keywords keywords;B-Raf, MEK, 14-3-3, B-Raf complex, B-Raf monomer, Inactive B-Raf, Serine/threonine-protein kinase B-raf, RBD, signaling protein, SIGNALING PROTEIN-TRANSFERASE complex ;; SIGNALING PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier36.55
Radius of gyration Rg (electron density) rg_electron36.15
Forward intensity I(0) i0258253000.00
Molecular weight molecular_weight130250.0 kDa
Excluded volume excluded_volume163350 ų
Envelope volume envelope_volume214310 ų
Hydration-shell volume shell_volume49984 ų
Envelope diameter envelope_diameter122.0
Shell Rg shell_rg42.01
Envelope Rg envelope_rg35.66
Shape Rg shape_rg36.17
Total Rg total_rg36.48
Total atoms total_atoms9141
Residues n_residues1147
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 dmax119.7
Rg (real space) rg_real36.57
Rg uncertainty (real space) rg_real_error0.80
I(0) (real space) i0_real2.5830e+08
I(0) uncertainty (real space) i0_real_error4.2380e+06
Rg (reciprocal space) rg_reciprocal36.56
I(0) (reciprocal space) i0_reciprocal258300000.0000
Solution quality estimate total_estimate0.8878
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary41.7
Skewness Skewness skewness0.344
Kurtosis Kurtosis kurtosis-0.453
Angular range angular_range— – 0.2150 −1
Current regularization parameter α current_alpha0.0002
Highest regularization parameter α highest_alpha47830000.0000
Real-space data points n_real_points44
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.900; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.980; Smooth: 0.857

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

8. Citations (1)

9. Files and Curves (10)