7lrx

X-ray diffraction
2.9Å resolution

Structure of HIV-1 Reverse Transcriptase in complex with DNA, L-dCTP, and CA(2+) ion

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-121549 (preferred)
Entry contents:
2 distinct polypeptide molecules
1 distinct DNA molecule
Macromolecules (4 distinct):
Reverse transcriptase/ribonuclease H Chains: A, C
Molecule details ›
Chains: A, C
Length: 555 amino acids
Theoretical weight: 63.87 KDa
Source organism: Human immunodeficiency virus 1
Expression system: Escherichia coli
UniProt:
  • Canonical: P03366 (Residues: 600-1154; Coverage: 38%)
Gene name: gag-pol
Sequence domains:
p51 RT Chains: B, D
Molecule details ›
Chains: B, D
Length: 429 amino acids
Theoretical weight: 50.1 KDa
Source organism: Human immunodeficiency virus 1
Expression system: Escherichia coli
UniProt:
  • Canonical: P03366 (Residues: 600-1027; Coverage: 30%)
Gene name: gag-pol
Sequence domains:
DNA/RNA (38-MER) Chains: E, F
Molecule details ›
Chains: E, F
Length: 38 nucleotides
Theoretical weight: 11.76 KDa

Ligands and Environments

Carbohydrate polymer : NEW Components: GLC, FRU
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 23-ID-D
Spacegroup: P21
Unit cell:
a: 89.881Å b: 132.622Å c: 139.376Å
α: 90° β: 97.763° γ: 90°
R-values:
R R work R free
0.209 0.208 0.247
Expression system: Escherichia coli