PDBe 3lal

X-ray diffraction
2.51Å resolution

Crystal structure of HIV-1 reverse transcriptase in complex with N1-ethyl pyrimidinedione non-nucleoside inhibitor

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). 
Specific for a P1 residue that is hydrophobic, and P1' variable, but often Pro. 
3'-end directed exonucleolytic cleavage of viral RNA-DNA hybrid. 
Biochemical function:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Reverse transcriptase/ribonuclease H Chains: A, B
Molecule details ›
Chains: A, B
Length: 560 amino acids
Theoretical weight: 64.56 KDa
Source organism: HIV-1 M:B_HXB2R
Expression system: Escherichia coli
UniProt:
  • Canonical: P04585 (Residues: 588-1147; Coverage: 39%)
Gene name: gag-pol
Sequence domains:
Structure domains:

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 5.0.2
Spacegroup: C2221
Unit cell:
a: 118.151Å b: 154.124Å c: 153.956Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.221 0.218 0.267
Expression system: Escherichia coli