9gg8

Crystal structure of 14-3-3 sigma dC - C38N in complex with Tau pS214 peptide and covalent stabilizer 187

Method: X-RAY DIFFRACTION Dmax: 67.5 Å Quality: GOOD

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 Microtubule-associated protein tau × 2 (P10636) TW8 4-(3,4-dihydro-2~{H}-quinoxalin-1-ylsulfonyl)benzaldehyde × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;277 K;Cocrystalization of 12 mg/ml protein, 2eq peptide and 1.8mM compound in 20 mM Sodium HEPES pH 7.5, 2 mM MgCl2, and 1.5 mM TCEP. Crystallization buffer: 0.19 M Calcium chloride dihydrate, 0.095 M Sodium HEPES pH 7.1, 5% glycerol, and28% PEG 400, mixed 1:1 with cocrystal mix Resolution 1.10 Å R-free 0.203

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

Microtubule-associated protein tau

OrganismNot specified

UniProt P10636

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 527–539 Non-standard monomer:Yes (specific site not provided by mmCIF) 14-3-3 protein sigma × 2 (P31947) TW8 4-(3,4-dihydro-2~{H}-quinoxalin-1-ylsulfonyl)benzaldehyde × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;277 K;Cocrystalization of 12 mg/ml protein, 2eq peptide and 1.8mM compound in 20 mM Sodium HEPES pH 7.5, 2 mM MgCl2, and 1.5 mM TCEP. Crystallization buffer: 0.19 M Calcium chloride dihydrate, 0.095 M Sodium HEPES pH 7.1, 5% glycerol, and28% PEG 400, mixed 1:1 with cocrystal mix Resolution 1.10 Å R-free 0.203

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.

248 other PDB entries and 270 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TAU_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain P; PDBConstruct 1–13; UniProt 527–539

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 9gg8

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9gg8
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9gg8
Deposition date deposition_date2024-08-13
最后修订 last_revision2025-08-27
Structure title titleCrystal structure of 14-3-3 sigma dC - C38N in complex with Tau pS214 peptide and covalent stabilizer 187
Keywords keywords14-3-3, tau, protein-protein interaction, covalent stabilization, PROTEIN BINDING; PROTEIN BINDING
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier20.31
Radius of gyration Rg (electron density) rg_electron19.13
Forward intensity I(0) i014330300.00
Molecular weight molecular_weight27620.0 kDa
Excluded volume excluded_volume34308 ų
Envelope volume envelope_volume40904 ų
Hydration-shell volume shell_volume18259 ų
Envelope diameter envelope_diameter70.3
Shell Rg shell_rg25.11
Envelope Rg envelope_rg19.72
Shape Rg shape_rg19.12
Total Rg total_rg20.04
Total atoms total_atoms1936
Residues n_residues244
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 dmax67.5
Rg (real space) rg_real20.28
Rg uncertainty (real space) rg_real_error0.42
I(0) (real space) i0_real1.4330e+07
I(0) uncertainty (real space) i0_real_error1.7360e+05
Rg (reciprocal space) rg_reciprocal20.29
I(0) (reciprocal space) i0_reciprocal14330000.0000
Solution quality estimate total_estimate0.8101
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary25.1
Skewness Skewness skewness0.334
Kurtosis Kurtosis kurtosis-0.218
Angular range angular_range— – 0.3900 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2731000.0000
Real-space data points n_real_points71
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.844; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.996; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

8. Citations (1)

9. Files and Curves (10)