6NUJ image
Entry Detail
PDB ID:
6NUJ
Title:
HIV-1 Integrase Catalytic Core Domain Complexed with Allosteric Inhibitor BI-224436
Biological Source:
Host Organism:
PDB Version:
Deposition Date:
2019-02-01
Release Date:
2019-12-11
Method Details:
Experimental Method:
Resolution:
2.10 Å
R-Value Free:
0.24
R-Value Work:
0.21
R-Value Observed:
0.22
Space Group:
P 31 2 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Integrase
Mutations:F185H
Chain IDs:A
Chain Length:166
Number of Molecules:1
Biological Source:Human immunodeficiency virus 1
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
CAF A CYS modified residue
Ligand Molecules
Primary Citation
HIV-1 integrase tetramers are the antiviral target of pyridine-based allosteric integrase inhibitors.
Elife 8 ? ? (2019)
PMID: 31120420 DOI: 10.7554/eLife.46344

Abstact

Allosteric HIV-1 integrase (IN) inhibitors (ALLINIs) are a promising new class of antiretroviral agents that disrupt proper viral maturation by inducing hyper-multimerization of IN. Here we show that lead pyridine-based ALLINI KF116 exhibits striking selectivity for IN tetramers versus lower order protein oligomers. IN structural features that are essential for its functional tetramerization and HIV-1 replication are also critically important for KF116 mediated higher-order IN multimerization. Live cell imaging of single viral particles revealed that KF116 treatment during virion production compromises the tight association of IN with capsid cores during subsequent infection of target cells. We have synthesized the highly active (-)-KF116 enantiomer, which displayed EC50 of ~7 nM against wild type HIV-1 and ~10 fold higher, sub-nM activity against a clinically relevant dolutegravir resistant mutant virus suggesting potential clinical benefits for complementing dolutegravir therapy with pyridine-based ALLINIs.

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Primary Citation of related structures