9piz

Structure of KRAS-G12C bound to 1-[(4aR,10P,13R)-10-[5-amino-4-fluoro-3-methyl-2-(trifluoromethyl)phenyl]-11-chloro-9-fluoro-1,2,4a,5-tetrahydropyrazino[1',2':4,5][1,4]oxazino[2,3-c]quinolin-3(4H)-yl]prop-2-en-1-one (compound 15)

Method: X-RAY DIFFRACTION Dmax: 101.6 Å Quality: GOOD

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

Isoform 2B of 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 heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 1–169 Mutation:G12C anti-KRAS heavy chain × 1 anti-KRAS light chain × 1 MG MAGNESIUM ION × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 A1CII 1-[(4aR,10P,13R)-10-[5-amino-4-fluoro-3-methyl-2-(trifluoromethyl)phenyl]-11-chloro-9-fluoro-1,2,4a,5-tetrahydropyrazino[1',2':4,5][1,4]oxazino[2,3-c]quinolin-3(4H)-yl]prop-2-en-1-one × 1 PEG DI(HYDROXYETHYL)ETHER × 7 GOL GLYCEROL × 1 DMS DIMETHYL SULFOXIDE × 3 ACT ACETATE ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;291 K;0.1 M sodium cacodylate, pH 6.4, 37% PEG300, 0.2 M calcium acetate, 0.4 mM TCEP Resolution 1.94 Å R-free 0.218

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 804 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 3–171; 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 9piz

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id9piz
Deposition date deposition_date2025-07-11
Structure title titleStructure of KRAS-G12C bound to 1-[(4aR,10P,13R)-10-[5-amino-4-fluoro-3-methyl-2-(trifluoromethyl)phenyl]-11-chloro-9-fluoro-1,2,4a,5-tetrahydropyrazino[1',2':4,5][1,4]oxazino[2,3-c]quinolin-3(4H)-yl]prop-2-en-1-one (compound 15)
Keywords keywordsOncoprotein, inhibitor, covalent; ONCOPROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier29.98
Radius of gyration Rg (electron density) rg_electron29.51
Forward intensity I(0) i0139259000.00
Molecular weight molecular_weight62632.0 kDa
Excluded volume excluded_volume60549 ų
Envelope volume envelope_volume104110 ų
Hydration-shell volume shell_volume30433 ų
Envelope diameter envelope_diameter108.8
Shell Rg shell_rg35.70
Envelope Rg envelope_rg29.33
Shape Rg shape_rg29.40
Total Rg total_rg30.09
Total atoms total_atoms4820
Residues n_residues603
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 dmax101.6
Rg (real space) rg_real30.09
Rg uncertainty (real space) rg_real_error0.81
I(0) (real space) i0_real1.3930e+08
I(0) uncertainty (real space) i0_real_error2.2730e+06
Rg (reciprocal space) rg_reciprocal30.04
I(0) (reciprocal space) i0_reciprocal139300000.0000
Solution quality estimate total_estimate0.8775
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary30.7
Skewness Skewness skewness0.407
Kurtosis Kurtosis kurtosis-0.367
Angular range angular_range— – 0.2650 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha15940000.0000
Real-space data points n_real_points54
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.860; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.898; Smooth: 0.925

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (11)

8. Citations (1)

9. Files and Curves (10)