3phv

X-ray diffraction
2.7Å resolution

X-RAY ANALYSIS OF HIV-1 PROTEINASE AT 2.7 ANGSTROMS RESOLUTION CONFIRMS STRUCTURAL HOMOLOGY AMONG RETROVIRAL ENZYMES

Released:

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:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-138017 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Protease Chain: A
Molecule details ›
Chain: A
Length: 99 amino acids
Theoretical weight: 10.8 KDa
Source organism: HIV-1 M:B_HXB2R
Expression system: Escherichia coli
UniProt:
  • Canonical: P04585 (Residues: 489-587; Coverage: 7%)
Gene name: gag-pol
Sequence domains: Retroviral aspartyl protease
Structure domains: Acid Proteases

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
Spacegroup: P41212
Unit cell:
a: 50.24Å b: 50.24Å c: 107.12Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.191 0.191 not available
Expression system: Escherichia coli