8x22

X-ray diffraction
2.31Å resolution

HIV-1 reverse transcriptase mutant Q151M/Y115F/F116Y/L74V:DNA:dGTP ternary complex

Released:

Function and Biology Details

Reactions catalysed:
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.
Deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1)
3'-end directed exonucleolytic cleavage of viral RNA-DNA hybrid
Specific for a P1 residue that is hydrophobic, and P1' variable, but often Pro.
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-247093 (preferred)
Entry contents:
2 distinct polypeptide molecules
1 distinct DNA molecule
Macromolecules (3 distinct):
Pol protein Chains: A, C
Molecule details ›
Chains: A, C
Length: 557 amino acids
Theoretical weight: 64.02 KDa
Source organism: Human immunodeficiency virus 1
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: D3XFN5 (Residues: 100-654; Coverage: 84%)
Gene name: pol
Sequence domains:
p51 RT Chains: B, D
Molecule details ›
Chains: B, D
Length: 444 amino acids
Theoretical weight: 51.86 KDa
Source organism: Human immunodeficiency virus 1
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P12497 (Residues: 588-1015; Coverage: 30%)
Gene name: gag-pol
Sequence domains:
DNA/RNA (38-MER) Chains: E, F
Molecule details ›
Chains: E, F
Length: 38 nucleotides
Theoretical weight: 11.72 KDa

Ligands and Environments

3 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: PHOTON FACTORY BEAMLINE BL-1A
Spacegroup: R3
Unit cell:
a: 285.227Å b: 285.227Å c: 96.075Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.184 0.182 0.219
Expression system: Escherichia coli BL21(DE3)