4li0

X-ray diffraction
3.3Å resolution

Crystal structure of GDP-bound Rab8:GRAB

Released:

Function and Biology Details

Reaction catalysed:
GTP + H(2)O = GDP + phosphate
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-158168 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Ras-related protein Rab-8A Chains: A, B
Molecule details ›
Chains: A, B
Length: 186 amino acids
Theoretical weight: 21.26 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P61006 (Residues: 1-184; Coverage: 89%)
Gene names: MEL, RAB8, RAB8A
Sequence domains: Ras family
Structure domains: P-loop containing nucleotide triphosphate hydrolases
Guanine nucleotide exchange factor for Rab-3A Chains: C, D, E, F
Molecule details ›
Chains: C, D, E, F
Length: 84 amino acids
Theoretical weight: 9.8 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q8TBN0 (Residues: 73-154; Coverage: 22%)
Gene name: RAB3IL1
Sequence domains: GDP/GTP exchange factor Sec2p
Structure domains: Single alpha-helices involved in coiled-coils or other helix-helix interfaces

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X10SA
Spacegroup: C2221
Unit cell:
a: 110.93Å b: 160.38Å c: 166.51Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.246 0.244 0.29
Expression system: Escherichia coli