X-ray diffraction
2.01Å resolution

Crystal structure of tetrameric human D137N-SAMHD1 (residues 109-626) with XTP, dAMPNPP and Mg


Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Deoxynucleoside triphosphate triphosphohydrolase SAMHD1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 520 amino acids
Theoretical weight: 60.21 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
  • Canonical: Q9Y3Z3 (Residues: 109-626; Coverage: 83%)
Gene names: MOP5, SAMHD1
Sequence domains: HD domain

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: DIAMOND BEAMLINE I04-1
Spacegroup: P43212
Unit cell:
a: 105.924Å b: 105.924Å c: 198.073Å
α: 90° β: 90° γ: 90°
R R work R free
0.186 0.184 0.228
Expression system: Escherichia coli BL21(DE3)