9gtk

KRAS in complex with DARPin 784_F5

Method: X-RAY DIFFRACTION Dmax: 99.9 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 1–186 Not recorded DARPin 784_F5 × 1 EDO 1,2-ETHANEDIOL × 18 MG MAGNESIUM ION × 2 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 1PE PENTAETHYLENE GLYCOL × 1 PGE TRIETHYLENE GLYCOL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;277.15 K;Crystals grew within 25 days in 0.2 M potassium sodium tartrate, 20% w/v PEG 3350 Resolution 2.00 Å R-free 0.201
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 1–186 Not recorded DARPin 784_F5 × 1 EDO 1,2-ETHANEDIOL × 10 MG MAGNESIUM ION × 2 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 PGE TRIETHYLENE GLYCOL × 1 SRT S,R MESO-TARTARIC ACID × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;277.15 K;Crystals grew within 25 days in 0.2 M potassium sodium tartrate, 20% w/v PEG 3350 Resolution 2.00 Å R-free 0.201
3 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain D; UniProt 1–186 Not recorded DARPin 784_F5 × 1 EDO 1,2-ETHANEDIOL × 2 MG MAGNESIUM ION × 2 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 PGE TRIETHYLENE GLYCOL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;277.15 K;Crystals grew within 25 days in 0.2 M potassium sodium tartrate, 20% w/v PEG 3350 Resolution 2.00 Å R-free 0.201

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 1–186; UniProt 1–186 Author chain C; PDBConstruct 1–186; UniProt 1–186 Author chain D; PDBConstruct 1–186; UniProt 1–186

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 9gtk

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id9gtk
Deposition date deposition_date2024-09-18
Structure title titleKRAS in complex with DARPin 784_F5
Keywords keywordsSmall GTPase, Designed Ankyrin Repeat Protein, SIGNALING PROTEIN; SIGNALING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier31.72
Radius of gyration Rg (electron density) rg_electron30.97
Forward intensity I(0) i0222344000.00
Molecular weight molecular_weight115840.0 kDa
Excluded volume excluded_volume143900 ų
Envelope volume envelope_volume181280 ų
Hydration-shell volume shell_volume47255 ų
Envelope diameter envelope_diameter108.8
Shell Rg shell_rg39.29
Envelope Rg envelope_rg30.97
Shape Rg shape_rg31.00
Total Rg total_rg31.54
Total atoms total_atoms8113
Residues n_residues1011
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 dmax99.9
Rg (real space) rg_real31.55
Rg uncertainty (real space) rg_real_error0.63
I(0) (real space) i0_real2.2230e+08
I(0) uncertainty (real space) i0_real_error3.4290e+06
Rg (reciprocal space) rg_reciprocal31.63
I(0) (reciprocal space) i0_reciprocal222400000.0000
Solution quality estimate total_estimate0.8998
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary40.0
Skewness Skewness skewness0.184
Kurtosis Kurtosis kurtosis-0.475
Angular range angular_range— – 0.2500 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha54800000.0000
Real-space data points n_real_points51
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.919; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.989; Smooth: 0.949

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (9)

8. Citations (1)

9. Files and Curves (10)