9s2i

Ternary structure of 14-3-3, CRAF R256S NS mutant phosphopeptide (pS259), and compound 78 (1124378)

Method: X-RAY DIFFRACTION Dmax: 68.9 Å Quality: REASONABLE

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

14-3-3 protein sigma

Homo sapiens

UniProt P31947

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 1–231 Not recorded RAF proto-oncogene serine/threonine-protein kinase × 2 (P04049) CL CHLORIDE ION × 2 MG MAGNESIUM ION × 4 WQN 1-[8-(4-bromophenyl)sulfonyl-5-oxa-2,8-diazaspiro[3.5]nonan-2-yl]-2-chloranyl-ethanone × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;277 K;0.095 M HEPES pH=7.1-7.7 0.19 M CaCl2 5% glycerol 24-29% PEG400 Resolution 1.67 Å R-free 0.201

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.

523 other PDB entries and 543 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name 1433S_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 6–236; UniProt 1–231

RAF proto-oncogene serine/threonine-protein kinase

OrganismNot specified

UniProt P04049

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 P; UniProt 255–265 Mutation:R256S Non-standard monomer:Yes (specific site not provided by mmCIF) 14-3-3 protein sigma × 2 (P31947) CL CHLORIDE ION × 2 MG MAGNESIUM ION × 4 WQN 1-[8-(4-bromophenyl)sulfonyl-5-oxa-2,8-diazaspiro[3.5]nonan-2-yl]-2-chloranyl-ethanone × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;277 K;0.095 M HEPES pH=7.1-7.7 0.19 M CaCl2 5% glycerol 24-29% PEG400 Resolution 1.67 Å R-free 0.201

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.

74 other PDB entries and 83 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RAF1_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain P; PDBConstruct 1–11; UniProt 255–265

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 9s2i

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9s2i
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9s2i
Deposition date deposition_date2025-07-21
Structure title titleTernary structure of 14-3-3, CRAF R256S NS mutant phosphopeptide (pS259), and compound 78 (1124378)
Keywords keywordsPPI, 14-3-3, molecular glue, CRAF, PEPTIDE BINDING PROTEIN; PEPTIDE BINDING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier20.10
Radius of gyration Rg (electron density) rg_electron19.29
Forward intensity I(0) i028083900.00
Molecular weight molecular_weight26400.0 kDa
Excluded volume excluded_volume25113 ų
Envelope volume envelope_volume42140 ų
Hydration-shell volume shell_volume18628 ų
Envelope diameter envelope_diameter70.6
Shell Rg shell_rg25.35
Envelope Rg envelope_rg19.85
Shape Rg shape_rg19.26
Total Rg total_rg19.99
Total atoms total_atoms1966
Residues n_residues245
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 dmax68.9
Rg (real space) rg_real20.08
Rg uncertainty (real space) rg_real_error0.51
I(0) (real space) i0_real2.8080e+07
I(0) uncertainty (real space) i0_real_error3.6530e+05
Rg (reciprocal space) rg_reciprocal20.08
I(0) (reciprocal space) i0_reciprocal28080000.0000
Solution quality estimate total_estimate0.6617
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary23.6
Skewness Skewness skewness0.354
Kurtosis Kurtosis kurtosis-0.204
Angular range angular_range— – 0.3950 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha5127000.0000
Real-space data points n_real_points71
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.798; Stabil: 1.000; Sysdev: 0.406; Positv: 1.000; Valcen: 0.986; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

8. Citations (1)

9. Files and Curves (10)