5v6v

Crystal structure of small molecule aziridine 3 covalently bound to K-Ras G12C

Method: X-RAY DIFFRACTION Dmax: 75.7 Å Quality: REASONABLE

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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–169 Chain B; UniProt 1–169 Mutation:G12C/C51S/C80L/C118S GDP GUANOSINE-5'-DIPHOSPHATE × 2 CA CALCIUM ION × 6 8YA 3-amino-1-{4-[6-chloro-8-fluoro-7-(5-methyl-1H-indazol-4-yl)quinazolin-4-yl]piperazin-1-yl}propan-1-one × 2 GOL GLYCEROL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8;293 K;28% PEG 4000, 0.1M Tris pH 8, 0.2M CaCl2, vapor diffusion, hanging drop, 293K Resolution 1.72 Å R-free 0.202

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 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 5v6v

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 5v6v
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2. Structure Basics 2. Structure Basics

Entry ID entry_id5v6v
Deposition date deposition_date2017-03-17
Structure title titleCrystal structure of small molecule aziridine 3 covalently bound to K-Ras G12C
Keywords keywordsK-Ras G12C, covalent inhibitor, HYDROLASE-HYDROLASE INHIBITOR complex; HYDROLASE/HYDROLASE INHIBITOR
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier23.32
Radius of gyration Rg (electron density) rg_electron22.75
Forward intensity I(0) i028637400.00
Molecular weight molecular_weight39854.0 kDa
Excluded volume excluded_volume49302 ų
Envelope volume envelope_volume57957 ų
Hydration-shell volume shell_volume22017 ų
Envelope diameter envelope_diameter79.1
Shell Rg shell_rg28.72
Envelope Rg envelope_rg22.77
Shape Rg shape_rg22.75
Total Rg total_rg23.46
Total atoms total_atoms5471
Residues n_residues333
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 dmax75.7
Rg (real space) rg_real23.38
Rg uncertainty (real space) rg_real_error0.63
I(0) (real space) i0_real2.8640e+07
I(0) uncertainty (real space) i0_real_error4.3070e+05
Rg (reciprocal space) rg_reciprocal23.37
I(0) (reciprocal space) i0_reciprocal28640000.0000
Solution quality estimate total_estimate0.6270
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary25.6
Skewness Skewness skewness0.438
Kurtosis Kurtosis kurtosis-0.311
Angular range angular_range— – 0.3400 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4638000.0000
Real-space data points n_real_points66
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.836; Stabil: 0.999; Sysdev: 0.223; Positv: 1.000; Valcen: 0.972; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd5v6va_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.8 — G proteins
Domain ID domain_idd5v6vb_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.8 — G proteins

CATH v4.4 (2 domains)

Domain ID domain_id5v6vA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
Domain ID domain_id5v6vB00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases

8. Citations (1)

9. Files and Curves (10)