24hs

Human KRAS G12D (GDP-bound) in complex with macrocyclic peptide inhibitor AP4959

Method: X-RAY DIFFRACTION Dmax: 145.1 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 2–174 Mutation:G12D AP4959 × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 EDO 1,2-ETHANEDIOL × 3 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;293 K;60.0% v/v Tacsimate Resolution 2.53 Å R-free 0.290
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 2–174 Mutation:G12D AP4959 × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 EDO 1,2-ETHANEDIOL × 3 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;293 K;60.0% v/v Tacsimate Resolution 2.53 Å R-free 0.290
3 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 2–174 Mutation:G12D AP4959 × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 EDO 1,2-ETHANEDIOL × 2 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;293 K;60.0% v/v Tacsimate Resolution 2.53 Å R-free 0.290
4 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain D; UniProt 2–174 Mutation:G12D AP4959 × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;293 K;60.0% v/v Tacsimate Resolution 2.53 Å R-free 0.290
5 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain E; UniProt 2–174 Mutation:G12D AP4959 × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 EDO 1,2-ETHANEDIOL × 1 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;293 K;60.0% v/v Tacsimate Resolution 2.53 Å R-free 0.290
6 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain F; UniProt 2–174 Mutation:G12D AP4959 × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 EDO 1,2-ETHANEDIOL × 1 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;293 K;60.0% v/v Tacsimate Resolution 2.53 Å R-free 0.290
7 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain G; UniProt 2–174 Mutation:G12D AP4959 × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;293 K;60.0% v/v Tacsimate Resolution 2.53 Å R-free 0.290
8 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain H; UniProt 2–174 Mutation:G12D AP4959 × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;293 K;60.0% v/v Tacsimate Resolution 2.53 Å R-free 0.290

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 797 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 7–179; UniProt 2–174 Author chain B; PDBConstruct 7–179; UniProt 2–174 Author chain C; PDBConstruct 7–179; UniProt 2–174 Author chain D; PDBConstruct 7–179; UniProt 2–174 Author chain E; PDBConstruct 7–179; UniProt 2–174 Author chain F; PDBConstruct 7–179; UniProt 2–174 Author chain G; PDBConstruct 7–179; UniProt 2–174 Author chain H; PDBConstruct 7–179; UniProt 2–174

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 24hs

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 24hs
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2. Structure Basics 2. Structure Basics

Entry ID entry_id24hs
Deposition date deposition_date2026-03-04
最后修订 last_revision2026-05-27
Structure title titleHuman KRAS G12D (GDP-bound) in complex with macrocyclic peptide inhibitor AP4959
Keywords keywordsKRAS, MACROCYCLIC PEPTIDE, ONCOLOGY, SIGNALING PROTEIN, SIGNALING PROTEIN-INHIBITOR COMPLEX; SIGNALING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier42.09
Radius of gyration Rg (electron density) rg_electron42.14
Forward intensity I(0) i0853261000.00
Molecular weight molecular_weight156920.0 kDa
Excluded volume excluded_volume150300 ų
Envelope volume envelope_volume281800 ų
Hydration-shell volume shell_volume57928 ų
Envelope diameter envelope_diameter156.5
Shell Rg shell_rg45.18
Envelope Rg envelope_rg41.62
Shape Rg shape_rg42.14
Total Rg total_rg42.25
Total atoms total_atoms11818
Residues n_residues1388
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 dmax145.1
Rg (real space) rg_real42.27
Rg uncertainty (real space) rg_real_error1.43
I(0) (real space) i0_real8.5330e+08
I(0) uncertainty (real space) i0_real_error1.5800e+07
Rg (reciprocal space) rg_reciprocal42.09
I(0) (reciprocal space) i0_reciprocal853100000.0000
Solution quality estimate total_estimate0.8536
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary49.6
Skewness Skewness skewness0.501
Kurtosis Kurtosis kurtosis-0.111
Angular range angular_range— – 0.1900 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha32250000.0000
Real-space data points n_real_points39
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.792; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.986; Smooth: 0.729

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

8. Citations (1)

9. Files and Curves (10)