X-ray diffraction
2.55Å resolution

Structure basis of cellular dNTP regulation, SAMHD1-GTP-dATP/dCTP-dCTP complex

Source organism: Homo sapiens
Entry authors: Ji X, Tang C, Zhao Q, Wang W, Xiong Y

Function and Biology Details

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

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Deoxynucleoside triphosphate triphosphohydrolase SAMHD1 Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 514 amino acids
Theoretical weight: 59.6 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: Q9Y3Z3 (Residues: 113-626; Coverage: 82%)
Gene names: MOP5, SAMHD1
Sequence domains: HD domain
Structure domains: Hypothetical protein af1432

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 24-ID-C
Spacegroup: P21
Unit cell:
a: 86.204Å b: 141.586Å c: 98.187Å
α: 90° β: 115.79° γ: 90°
R R work R free
0.222 0.221 0.235
Expression system: Escherichia coli