9pzf

Structure of KRAS G12C bound to Compound 4

Method: X-RAY DIFFRACTION Dmax: 75.5 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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 2–169 Mutation:G12C variant, C51S, C80L, C118S A1CQ2 1-(4-{(7M)-7-[6-amino-3-(trifluoromethyl)pyridin-2-yl]-6-chloroquinazolin-4-yl}piperazin-1-yl)propan-1-one × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;292 K;100mM Tris pH 8.3-8.7, 28%-32% PEG 3350, and 200mM MgCl2 Resolution 1.84 Å R-free 0.204
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 2–169 Mutation:G12C variant, C51S, C80L, C118S A1CQ2 1-(4-{(7M)-7-[6-amino-3-(trifluoromethyl)pyridin-2-yl]-6-chloroquinazolin-4-yl}piperazin-1-yl)propan-1-one × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;292 K;100mM Tris pH 8.3-8.7, 28%-32% PEG 3350, and 200mM MgCl2 Resolution 1.84 Å R-free 0.204

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 17–184; UniProt 2–169 Author chain B; PDBConstruct 17–184; UniProt 2–169

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 9pzf

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id9pzf
Deposition date deposition_date2025-08-11
Structure title titleStructure of KRAS G12C bound to Compound 4
Keywords keywordsGTPase, inhibitor, ONCOPROTEIN; ONCOPROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier23.05
Radius of gyration Rg (electron density) rg_electron22.46
Forward intensity I(0) i028726000.00
Molecular weight molecular_weight39616.0 kDa
Excluded volume excluded_volume48773 ų
Envelope volume envelope_volume56504 ų
Hydration-shell volume shell_volume21591 ų
Envelope diameter envelope_diameter77.3
Shell Rg shell_rg28.61
Envelope Rg envelope_rg22.59
Shape Rg shape_rg22.55
Total Rg total_rg22.91
Total atoms total_atoms5423
Residues n_residues338
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 dmax75.5
Rg (real space) rg_real23.11
Rg uncertainty (real space) rg_real_error0.59
I(0) (real space) i0_real2.8730e+07
I(0) uncertainty (real space) i0_real_error3.6990e+05
Rg (reciprocal space) rg_reciprocal23.10
I(0) (reciprocal space) i0_reciprocal28730000.0000
Solution quality estimate total_estimate0.8048
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary26.7
Skewness Skewness skewness0.438
Kurtosis Kurtosis kurtosis-0.299
Angular range angular_range— – 0.3450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4504000.0000
Real-space data points n_real_points66
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.830; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.970; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

8. Citations (1)

9. Files and Curves (10)