4g8g

X-ray diffraction
2.4Å resolution

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.

Structure analysis Details

Assembly composition:
hetero pentamer (preferred)
PDBe Complex ID:
PDB-CPX-208723 (preferred)
Entry contents:
5 distinct polypeptide molecules
Macromolecules (5 distinct):
HLA class I histocompatibility antigen, B alpha chain Chain: A
Molecule details ›
Chain: A
Length: 276 amino acids
Theoretical weight: 31.93 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P01889 (Residues: 25-300; Coverage: 82%)
Gene names: HLA-B, HLAB
Sequence domains:
Structure domains:
Beta-2-microglobulin Chain: B
Molecule details ›
Chain: B
Length: 100 amino acids
Theoretical weight: 11.88 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P61769 (Residues: 21-119; Coverage: 100%)
Gene names: B2M, CDABP0092, HDCMA22P
Sequence domains: Immunoglobulin C1-set domain
Structure domains: Immunoglobulins
Capsid protein p24 Chain: C
Molecule details ›
Chain: C
Length: 10 amino acids
Theoretical weight: 1.24 KDa
Source organism: Human immunodeficiency virus 1
Expression system: Not provided
UniProt:
  • Canonical: P03366 (Residues: 263-272; Coverage: 1%)
Gene name: gag-pol
alpha chain C12C TCR Chain: D
Molecule details ›
Chain: D
Length: 204 amino acids
Theoretical weight: 23.09 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
Structure domains: Immunoglobulins
beta chain C12C TCR Chain: E
Molecule details ›
Chain: E
Length: 248 amino acids
Theoretical weight: 27.64 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
Structure domains: Immunoglobulins

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: AUSTRALIAN SYNCHROTRON BEAMLINE MX1
Spacegroup: P21
Unit cell:
a: 56.682Å b: 70.32Å c: 107.767Å
α: 90° β: 98.77° γ: 90°
R-values:
R R work R free
0.182 0.178 0.257
Expression systems:
  • Escherichia coli BL21(DE3)
  • Not provided