6puz

Electron Microscopy
2.8Å resolution

Structure of HIV cleaved synaptic complex (CSC) intasome bound with magnesium and INSTI XZ446 (compound 4f)

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.
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
hetero dodecamer (preferred)
PDBe Complex ID:
PDB-CPX-120466 (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct DNA molecules
Macromolecules (3 distinct):
DNA-binding protein 7d; Integrase Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 383 amino acids
Theoretical weight: 42.32 KDa
Source organisms: Expression system: Escherichia coli
UniProt:
  • Canonical: P39476 (Residues: 1-64; Coverage: 100%)
  • Canonical: P12497 (Residues: 1148-1435; Coverage: 20%)
Gene names: SSO10610, gag-pol, sso7d, sso7d-1
Sequence domains:
viral DNA non-transferred strand Chain: E
Molecule details ›
Chain: E
Length: 27 nucleotides
Theoretical weight: 8.19 KDa
viral DNA transferred strand Chain: F
Molecule details ›
Chain: F
Length: 25 nucleotides
Theoretical weight: 7.77 KDa

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 2.8Å
Relevant EMDB volumes: EMD-20485
Expression system: Escherichia coli