4l1a

X-ray diffraction
1.9Å resolution

Crystallographic study of multi-drug resistant HIV-1 protease Lopinavir complex: mechanism of drug recognition and resistance

Released:

Function and Biology Details

Reaction catalysed:
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.
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-169394 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Pol protein Chain: A
Molecule details ›
Chain: A
Length: 99 amino acids
Theoretical weight: 10.77 KDa
Source organism: Human immunodeficiency virus 1
Expression system: Escherichia coli
UniProt:
  • Canonical: Q000H7 (Residues: 1-99; Coverage: 25%)
Gene name: pol
Sequence domains: Retroviral aspartyl protease
Structure domains: Acid Proteases
Pol protein Chain: B
Molecule details ›
Chain: B
Length: 99 amino acids
Theoretical weight: 10.77 KDa
Source organism: Human immunodeficiency virus 1
Expression system: Escherichia coli
UniProt:
  • Canonical: Q000H7 (Residues: 1-99; Coverage: 25%)
Gene name: pol
Sequence domains: Retroviral aspartyl protease
Structure domains: Acid Proteases

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 21-ID-D
Spacegroup: P41
Unit cell:
a: 43.828Å b: 43.828Å c: 101.805Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.201 0.197 0.26
Expression system: Escherichia coli