1rdh

X-ray diffraction
2.8Å resolution

CRYSTALLOGRAPHIC ANALYSES OF AN ACTIVE HIV-1 RIBONUCLEASE H DOMAIN SHOW STRUCTURAL FEATURES THAT DISTINGUISH IT FROM THE INACTIVE FORM

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:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-136839 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
p15 Chains: A, B
Molecule details ›
Chains: A, B
Length: 146 amino acids
Theoretical weight: 16.2 KDa
Source organism: Human immunodeficiency virus 1
Expression system: Escherichia coli
UniProt:
  • Canonical: P03366 (Residues: 1026-1159; Coverage: 9%)
Gene name: gag-pol
Sequence domains: RNase H

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
Spacegroup: P31
Unit cell:
a: 52.03Å b: 52.03Å c: 113.92Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.215 not available not available
Expression system: Escherichia coli