9n9n

Crystal structure of KRAS(G12C) bound to the cyclic peptide UNC10415730A

Method: X-RAY DIFFRACTION Dmax: 81.4 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 × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–169 Mutation:G12C cyclic peptide UNC10415730A × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1 GOL GLYCEROL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293.15 K;0.15 M Potassium Bromide, 30 % (w/v) PEG 2000 MME Resolution 1.24 Å R-free 0.198
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 1–169 Mutation:G12C cyclic peptide UNC10415730A × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1 GOL GLYCEROL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293.15 K;0.15 M Potassium Bromide, 30 % (w/v) PEG 2000 MME Resolution 1.24 Å R-free 0.198

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 3–171; UniProt 1–169 Author chain B; 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 9n9n

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9n9n
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9n9n
Deposition date deposition_date2025-02-11
最后修订 last_revision2026-02-18
Structure title titleCrystal structure of KRAS(G12C) bound to the cyclic peptide UNC10415730A
Keywords keywordsSmall GTPase, ONCOPROTEIN, HYDROLASE, Cyclic Peptide; ONCOPROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier26.10
Radius of gyration Rg (electron density) rg_electron25.64
Forward intensity I(0) i032192400.00
Molecular weight molecular_weight42310.0 kDa
Excluded volume excluded_volume52354 ų
Envelope volume envelope_volume62706 ų
Hydration-shell volume shell_volume21397 ų
Envelope diameter envelope_diameter84.5
Shell Rg shell_rg31.42
Envelope Rg envelope_rg25.54
Shape Rg shape_rg25.61
Total Rg total_rg26.42
Total atoms total_atoms5787
Residues n_residues358
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 dmax81.4
Rg (real space) rg_real26.24
Rg uncertainty (real space) rg_real_error0.59
I(0) (real space) i0_real3.2190e+07
I(0) uncertainty (real space) i0_real_error4.4800e+05
Rg (reciprocal space) rg_reciprocal26.20
I(0) (reciprocal space) i0_reciprocal32190000.0000
Solution quality estimate total_estimate0.8572
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary24.0
Skewness Skewness skewness0.369
Kurtosis Kurtosis kurtosis-0.742
Angular range angular_range— – 0.3050 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha5858000.0000
Real-space data points n_real_points62
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.802; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.862; Smooth: 0.871

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

8. Citations (1)

9. Files and Curves (10)