7z29

Electron Microscopy
3.38Å resolution

Cryo-EM structure of NNRTI resistant M184I/E138K mutant HIV-1 reverse transcriptase with a DNA aptamer in complex with nevirapine

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.
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-122367 (preferred)
Entry contents:
2 distinct polypeptide molecules
1 distinct DNA molecule
Macromolecules (3 distinct):
Reverse transcriptase/ribonuclease H Chain: A
Molecule details ›
Chain: A
Length: 556 amino acids
Theoretical weight: 64.02 KDa
Source organism: Human immunodeficiency virus type 1 BH10
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P03366 (Residues: 600-1153; Coverage: 38%)
Gene name: gag-pol
Sequence domains:
p51 RT Chain: B
Molecule details ›
Chain: B
Length: 428 amino acids
Theoretical weight: 50.04 KDa
Source organism: Human immunodeficiency virus type 1 BH10
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P03366 (Residues: 600-1027; Coverage: 30%)
Gene name: gag-pol
Sequence domains:
DNA (38-MER) Chain: E
Molecule details ›
Chain: E
Length: 38 nucleotides
Theoretical weight: 11.75 KDa

Ligands and Environments

1 bound ligand:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
Resolution: 3.38Å
Relevant EMDB volumes: EMD-14458
Expression system: Escherichia coli BL21(DE3)