3ds3

X-ray diffraction
2.7Å resolution

HIV-1 capsid C-terminal domain mutant (Y169A) in complex with an inhibitor of particle assembly (CAI)

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:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-146224 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Capsid protein p24 Chains: A, B
Molecule details ›
Chains: A, B
Length: 86 amino acids
Theoretical weight: 9.44 KDa
Source organism: Human immunodeficiency virus type 1 (NEW YORK-5 ISOLATE)
Expression system: Escherichia coli
UniProt:
  • Canonical: P12497 (Residues: 278-363; Coverage: 6%)
Gene name: gag-pol
Sequence domains: Gag protein p24 C-terminal domain
Structure domains: Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein; Chain A
Peptide inhibitor of capsid assembly Chains: C, D
Molecule details ›
Chains: C, D
Length: 12 amino acids
Theoretical weight: 1.45 KDa
Source organism: Human immunodeficiency virus type 1 (NEW YORK-5 ISOLATE)
Expression system: Not provided

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X06SA
Spacegroup: P62
Unit cell:
a: 112.83Å b: 112.83Å c: 32.35Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.23 0.228 0.293
Expression systems:
  • Escherichia coli
  • Not provided