8fnq

Electron Microscopy
2.8Å resolution

Function and Biology Details

Reactions catalysed:
Deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1)
3'-end directed exonucleolytic cleavage of viral RNA-DNA hybrid
Endohydrolysis of RNA in RNA/DNA hybrids. Three different cleavage modes: 1. sequence-specific internal cleavage of RNA. Human immunodeficiency virus type 1 and Moloney murine leukemia virus enzymes prefer to cleave the RNA strand one nucleotide away from the RNA-DNA junction. 2. RNA 5'-end directed cleavage 13-19 nucleotides from the RNA end. 3. DNA 3'-end directed cleavage 15-20 nucleotides away from the primer terminus.
Specific for a P1 residue that is hydrophobic, and P1' variable, but often Pro.
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dodecamer (preferred)
PDBe Complex ID:
PDB-CPX-224784 (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct DNA molecules
Macromolecules (3 distinct):
Integrase; Thymopoietin Chains: A, B, C, D, G, H, I, J
Molecule details ›
Chains: A, B, C, D, G, H, I, J
Length: 364 amino acids
Theoretical weight: 39.91 KDa
Source organisms: Expression system: Escherichia coli
UniProt:
  • Canonical: P42166 (Residues: 50-100; Coverage: 7%)
  • Canonical: P12497 (Residues: 1148-1435; Coverage: 20%)
Gene names: LAP2, TMPO, gag-pol
Sequence domains:
DNA (27-MER) Chains: E, K
Molecule details ›
Chains: E, K
Length: 27 nucleotides
Theoretical weight: 8.19 KDa
DNA (25-MER) Chains: F, L
Molecule details ›
Chains: F, L
Length: 25 nucleotides
Theoretical weight: 7.77 KDa

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 2.8Å
Relevant EMDB volumes: EMD-29322
Expression system: Escherichia coli