10nu

Structure of kRas G12C bound to Inhibitor 13ab

Method: X-RAY DIFFRACTION Dmax: 76.6 Å Quality: GOOD

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

GTPase KRas

Homo sapiens

UniProt P01116

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 1–169 Mutation:G12C; C51S; C80L; C118S CA CALCIUM ION × 2 A1C6Y 1-((2R,5S)-4-((S)-6-chloro-7-(1,6-dimethyl-1H-indazol-7-yl)-8-fluoro-2-(((S)-1-methylpyrrolidin-2-yl)methoxy)quinazolin-4-yl)-2,5-dimethylpiperazin-1-yl)prop-2-en-1-one × 1 GOL GLYCEROL × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.5;293 K;25-29% PEG4000, 0.2 M CaCl2, 0.1 M Tris pH 8.5 Resolution 1.50 Å R-free 0.269
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 1–169 Mutation:G12C; C51S; C80L; C118S CA CALCIUM ION × 2 A1C6Y 1-((2R,5S)-4-((S)-6-chloro-7-(1,6-dimethyl-1H-indazol-7-yl)-8-fluoro-2-(((S)-1-methylpyrrolidin-2-yl)methoxy)quinazolin-4-yl)-2,5-dimethylpiperazin-1-yl)prop-2-en-1-one × 1 GOL GLYCEROL × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.5;293 K;25-29% PEG4000, 0.2 M CaCl2, 0.1 M Tris pH 8.5 Resolution 1.50 Å R-free 0.269

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.

445 other PDB entries and 803 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RASK_HUMAN
Isoform P01116-2
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–170; UniProt 1–169 Author chain B; PDBConstruct 2–170; UniProt 1–169

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 10nu

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 10nu
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2. Structure Basics 2. Structure Basics

Entry ID entry_id10nu
Deposition date deposition_date2026-01-29
Structure title titleStructure of kRas G12C bound to Inhibitor 13ab
Keywords keywordsKRAS, SMALL GTPASE, ONCOPROTEIN, INHIBITOR Complex; ONCOPROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier23.78
Radius of gyration Rg (electron density) rg_electron23.22
Forward intensity I(0) i052383200.00
Molecular weight molecular_weight37077.0 kDa
Excluded volume excluded_volume35514 ų
Envelope volume envelope_volume57704 ų
Hydration-shell volume shell_volume21492 ų
Envelope diameter envelope_diameter74.5
Shell Rg shell_rg29.19
Envelope Rg envelope_rg23.12
Shape Rg shape_rg23.17
Total Rg total_rg23.83
Total atoms total_atoms2794
Residues n_residues334
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 dmax76.6
Rg (real space) rg_real23.84
Rg uncertainty (real space) rg_real_error0.57
I(0) (real space) i0_real5.2380e+07
I(0) uncertainty (real space) i0_real_error7.8660e+05
Rg (reciprocal space) rg_reciprocal23.83
I(0) (reciprocal space) i0_reciprocal52380000.0000
Solution quality estimate total_estimate0.8801
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary23.9
Skewness Skewness skewness0.360
Kurtosis Kurtosis kurtosis-0.584
Angular range angular_range— – 0.3350 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha7232000.0000
Real-space data points n_real_points65
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.866; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.925; Smooth: 0.919

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

8. Citations (1)

9. Files and Curves (10)