› 4mc9

X-ray diffraction
1.19Å 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
Sequence domains:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-143048 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Protease Chains: A, B
Molecule details ›
Chains: A, B
Length: 99 amino acids
Theoretical weight: 10.8 KDa
Source organism: Human immunodeficiency virus 1
Expression system: Escherichia coli
UniProt:
  • Canonical: P0C6F2 (Residues: 489-587; Coverage: 7%)
Gene name: gag-pol
Sequence domains: Retroviral aspartyl protease
Structure domains: Acid Proteases

Ligands and Environments

3 bound ligands:
Ligand 23L 2 x 23L
Ligand EDO 2 x EDO
Ligand CL 3 x CL
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 17-ID
Spacegroup: P21212
Unit cell:
a: 58.71Å b: 85.82Å c: 46.21Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.191 0.19 0.195
Expression system: Escherichia coli

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