6h47

X-ray diffraction
1.7Å resolution

Human KRAS in complex with darpin K19

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-134014 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
GTPase KRas, N-terminally processed Chain: A
Molecule details ›
Chain: A
Length: 169 amino acids
Theoretical weight: 19.21 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P01116 (Residues: 1-166; Coverage: 88%)
Gene names: KRAS, KRAS2, RASK2
Sequence domains: Ras family
Structure domains: P-loop containing nucleotide triphosphate hydrolases
darpin K19 Chain: B
Molecule details ›
Chain: B
Length: 178 amino acids
Theoretical weight: 19.57 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21
Structure domains: Ankyrin repeat-containing domain

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: DIAMOND BEAMLINE I03
Spacegroup: P6122
Unit cell:
a: 85.829Å b: 85.829Å c: 227.122Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.193 0.192 0.208
Expression system: Escherichia coli BL21