8fmi

Crystal structure of human KRAS at 1.12 A

Method: X-RAY DIFFRACTION Dmax: 50.5 Å Quality: GOOD

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

Isoform 2B of GTPase KRas

Homo sapiens

UniProt P01116-2

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 1–169 Not recorded MG MAGNESIUM ION × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;Ammonium Formate 0.2 M and PEG 3350 20% Resolution 1.12 Å R-free 0.147

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.

38 other PDB entries and 54 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RASK_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; 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 8fmi

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8fmi
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id8fmi
Deposition date deposition_date2022-12-23
Structure title titleCrystal structure of human KRAS at 1.12 A
Keywords keywordscancer, Hydrolase; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier16.50
Radius of gyration Rg (electron density) rg_electron15.14
Forward intensity I(0) i07870680.00
Molecular weight molecular_weight19748.0 kDa
Excluded volume excluded_volume24370 ų
Envelope volume envelope_volume26758 ų
Hydration-shell volume shell_volume14718 ų
Envelope diameter envelope_diameter51.4
Shell Rg shell_rg21.36
Envelope Rg envelope_rg15.48
Shape Rg shape_rg15.13
Total Rg total_rg16.22
Total atoms total_atoms2730
Residues n_residues170
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 dmax50.5
Rg (real space) rg_real16.35
Rg uncertainty (real space) rg_real_error0.27
I(0) (real space) i0_real7.8710e+06
I(0) uncertainty (real space) i0_real_error8.7050e+04
Rg (reciprocal space) rg_reciprocal16.36
I(0) (reciprocal space) i0_reciprocal7871000.0000
Solution quality estimate total_estimate0.8207
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary49.9
Skewness Skewness skewness0.032
Kurtosis Kurtosis kurtosis-0.496
Angular range angular_range— – 0.4800 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha1442000.0000
Real-space data points n_real_points78
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.897; Stabil: 0.998; Sysdev: 1.000; Positv: 1.000; Valcen: 0.979; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

8. Citations (1)

9. Files and Curves (10)