3lry

X-ray diffraction
1.98Å resolution

Crystal structure of synthetic HIV-1 capsid C-terminal domain (CCA)

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:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-146209 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Capsid protein p24 Chains: A, B
Molecule details ›
Chains: A, B
Length: 86 amino acids
Theoretical weight: 9.53 KDa
Source organism: Human immunodeficiency virus 1
Expression system: Not provided
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

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU MICROMAX-007
Spacegroup: C2
Unit cell:
a: 82.907Å b: 58.932Å c: 58.732Å
α: 90° β: 133.45° γ: 90°
R-values:
R R work R free
0.216 0.213 0.269
Expression system: Not provided