5kyk

Covalent GTP-competitive inhibitors of KRAS G12C: Guanosine bisphosphonate Analogs

Method: X-RAY DIFFRACTION Dmax: 76.5 Å Quality: EXCELLENT

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 1–168 Fragment:UNP residues 1-168 6ZD 5'-O-[(R)-[({2-[(chloroacetyl)amino]ethyl}sulfamoyl)methyl](hydroxy)phosphoryl]guanosine × 1 X-RAY DIFFRACTION X-ray crystallization conditions:EVAPORATION;293 K;Protein was purified in buffer: 20 mM Hepes pH 8.0, 150 mM NaCl, 5 mM MgCl2 and 0.5 mM DTT. Crystals grew in five days at room temperature from hanging vapor diffusion drops with following condition: 0.1 M Citric acid pH 4.0, 20% PEG 3350. Crystals were cryoprotected in mother liquid with 40% PEG 3350 and flash frozen in liquid nitrogen. Resolution 2.70 Å R-free 0.314
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 1–168 Fragment:UNP residues 1-168 6ZD 5'-O-[(R)-[({2-[(chloroacetyl)amino]ethyl}sulfamoyl)methyl](hydroxy)phosphoryl]guanosine × 1 X-RAY DIFFRACTION X-ray crystallization conditions:EVAPORATION;293 K;Protein was purified in buffer: 20 mM Hepes pH 8.0, 150 mM NaCl, 5 mM MgCl2 and 0.5 mM DTT. Crystals grew in five days at room temperature from hanging vapor diffusion drops with following condition: 0.1 M Citric acid pH 4.0, 20% PEG 3350. Crystals were cryoprotected in mother liquid with 40% PEG 3350 and flash frozen in liquid nitrogen. Resolution 2.70 Å R-free 0.314
3 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 1–168 Fragment:UNP residues 1-168 6ZD 5'-O-[(R)-[({2-[(chloroacetyl)amino]ethyl}sulfamoyl)methyl](hydroxy)phosphoryl]guanosine × 1 X-RAY DIFFRACTION X-ray crystallization conditions:EVAPORATION;293 K;Protein was purified in buffer: 20 mM Hepes pH 8.0, 150 mM NaCl, 5 mM MgCl2 and 0.5 mM DTT. Crystals grew in five days at room temperature from hanging vapor diffusion drops with following condition: 0.1 M Citric acid pH 4.0, 20% PEG 3350. Crystals were cryoprotected in mother liquid with 40% PEG 3350 and flash frozen in liquid nitrogen. Resolution 2.70 Å R-free 0.314

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 802 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 2–169; UniProt 1–168 Author chain B; PDBConstruct 2–169; UniProt 1–168 Author chain C; PDBConstruct 2–169; UniProt 1–168

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 5kyk

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 5kyk
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id5kyk
Deposition date deposition_date2016-07-21
Structure title titleCovalent GTP-competitive inhibitors of KRAS G12C: Guanosine bisphosphonate Analogs
Keywords keywordsKRAS, Cancer, 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_guinier25.05
Radius of gyration Rg (electron density) rg_electron23.79
Forward intensity I(0) i057513700.00
Molecular weight molecular_weight56254.0 kDa
Excluded volume excluded_volume69413 ų
Envelope volume envelope_volume86755 ų
Hydration-shell volume shell_volume29725 ų
Envelope diameter envelope_diameter79.2
Shell Rg shell_rg31.56
Envelope Rg envelope_rg24.05
Shape Rg shape_rg23.78
Total Rg total_rg24.68
Total atoms total_atoms3939
Residues n_residues483
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 dmax76.5
Rg (real space) rg_real24.94
Rg uncertainty (real space) rg_real_error0.37
I(0) (real space) i0_real5.7510e+07
I(0) uncertainty (real space) i0_real_error7.7960e+05
Rg (reciprocal space) rg_reciprocal24.97
I(0) (reciprocal space) i0_reciprocal57520000.0000
Solution quality estimate total_estimate0.9085
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary29.1
Skewness Skewness skewness0.190
Kurtosis Kurtosis kurtosis-0.522
Angular range angular_range— – 0.3150 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha22640000.0000
Real-space data points n_real_points64
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.944; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.976

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (6 domains)

Domain ID domain_idd5kyka1
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_idd5kyka2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd5kykb1
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_idd5kykb2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd5kykc1
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_idd5kykc2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (3 domains)

Domain ID domain_id5kykA00
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_id5kykB00
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_id5kykC00
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)