PDBe 4fyd

X-ray diffraction
3.1Å resolution

Crystal structure of yeast DNA polymerase alpha bound to DNA/RNA and dGTP


Function and Biology Details

Reaction catalysed:
Deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1). 
Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
Entry contents:
1 distinct polypeptide molecule
1 distinct DNA molecule
1 distinct DNA/RNA hybrid molecule
Macromolecules (3 distinct):
DNA polymerase alpha catalytic subunit A Chains: A, B
Molecule details ›
Chains: A, B
Length: 910 amino acids
Theoretical weight: 103.4 KDa
Source organism: Saccharomyces cerevisiae S288C
Expression system: Escherichia coli BL21(DE3)
  • Canonical: P13382 (Residues: 349-1258; Coverage: 62%)
Gene names: CDC17, N2181, POL1, YNL102W
Sequence domains:
Molecule details ›
Chains: C, D
Length: 25 nucleotides
Theoretical weight: 7.63 KDa
Source organism: Synthetic construct
Expression system: Not provided
Chains: E, F
Molecule details ›
Chains: E, F
Length: 12 nucleotides
Theoretical weight: 3.93 KDa
Source organism: Synthetic construct
Expression system: Not provided

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: DIAMOND BEAMLINE I02
Spacegroup: P212121
Unit cell:
a: 111.689Å b: 145.686Å c: 197.199Å
α: 90° β: 90° γ: 90°
R R work R free
0.212 0.21 0.247
Expression systems:
  • Escherichia coli BL21(DE3)
  • Not provided