3lp3

X-ray diffraction
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.
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assemblies composition:
monomeric (preferred)
homo dimer
Assembly name:
PDBe Complex ID:
PDB-CPX-143047 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
p15 Chains: A, B
Molecule details ›
Chains: A, B
Length: 138 amino acids
Theoretical weight: 15.18 KDa
Source organism: Human immunodeficiency virus 1
Expression system: Escherichia coli
UniProt:
  • Canonical: P0C6F2 (Residues: 1014-1149; Coverage: 10%)
Gene name: gag-pol
Sequence domains: RNase H
Structure domains: Ribonuclease H-like superfamily/Ribonuclease H

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU FR-E+ SUPERBRIGHT
Spacegroup: P31
Unit cell:
a: 51.256Å b: 51.256Å c: 112.773Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.232 0.229 0.288
Expression system: Escherichia coli