1HXW

HIV-1 PROTEASE DIMER COMPLEXED WITH A-84538

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Work: 0.201 
  • R-Value Observed: 0.201 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history. 


Literature

ABT-538 is a potent inhibitor of human immunodeficiency virus protease and has high oral bioavailability in humans.

Kempf, D.J., Marsh, K.C., Denissen, J.F., McDonald, E., Vasavanonda, S., Flentge, C.A., Green, B.E., Fino, L., Park, C.H., Kong, X.P.

(1995) Proc Natl Acad Sci U S A 92: 2484-2488

  • DOI: 10.1073/pnas.92.7.2484
  • Primary Citation of Related Structures:  
    1HXW

  • PubMed Abstract: 

    • Examination of the structural basis for antiviral activity, oral pharmacokinetics, and hepatic metabolism among a series of symmetry-based inhibitors of the human immunodeficiency virus (HIV) protease led to the discovery of ABT-538, a promising experimental drug for the therapeutic intervention in acquired immunodeficiency syndrome (AIDS) ...

    Examination of the structural basis for antiviral activity, oral pharmacokinetics, and hepatic metabolism among a series of symmetry-based inhibitors of the human immunodeficiency virus (HIV) protease led to the discovery of ABT-538, a promising experimental drug for the therapeutic intervention in acquired immunodeficiency syndrome (AIDS). ABT-538 exhibited potent in vitro activity against laboratory and clinical strains of HIV-1 [50% effective concentration (EC50) = 0.022-0.13 microM] and HIV-2 (EC50 = 0.16 microM). Following a single 10-mg/kg oral dose, plasma concentrations in rat, dog, and monkey exceeded the in vitro antiviral EC50 for > 12 h. In human trials, a single 400-mg dose of ABT-538 displayed a prolonged absorption profile and achieved a peak plasma concentration in excess of 5 micrograms/ml. These findings demonstrate that high oral bioavailability can be achieved in humans with peptidomimetic inhibitors of HIV protease.

    Organizational Affiliation: 

    Department of Anti-Infective Research, Abbott Laboratories, Abbott Laboratories, Abbott Park, IL 60064, USA.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HIV-1 PROTEASEA, B99Human immunodeficiency virus 1Mutation(s): 0 
EC: 3.4.23.16 (PDB Primary Data), 2.7.7.49 (UniProt), 2.7.7.7 (UniProt), 3.1.26.13 (UniProt), 3.1.13.2 (UniProt), 2.7.7 (UniProt), 3.1 (UniProt)
UniProt
Find proteins for P12499 (Human immunodeficiency virus type 1 group M subtype D (isolate Z2/CDC-Z34))
Explore P12499 
Go to UniProtKB:  P12499
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
RIT (Subject of Investigation/LOI)
Query on RIT
Download Ideal Coordinates CCD File 
 C [auth B]RITONAVIR
C37 H48 N6 O5 S2
NCDNCNXCDXHOMX-XGKFQTDJSA-N		 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
RIT BindingDB:  1HXW Ki: min: 0.01, max: 109 (nM) from 36 assay(s)
Kd: min: 0.6, max: 0.61 (nM) from 2 assay(s)
IC50: min: 67, max: 9850 (nM) from 2 assay(s)
EC50: 150 (nM) from 1 assay(s)
-TΔS: min: -1.02e+2, max: -3.01e+1 (kJ/mol) from 41 assay(s)
ΔH: min: -2.76e+1, max: 73.15 (kJ/mol) from 44 assay(s)
ΔG: min: -6.02e+1, max: -2.88e+1 (kJ/mol) from 42 assay(s)
Binding MOAD:  1HXW Ki: 0.02 (nM) from 1 assay(s)
PDBBind:  1HXW Ki: 0.02 (nM) from 1 assay(s)
Biologically Interesting Molecules (External Reference) 1 Unique
Entity ID: 2
IDChainsNameType/Class2D Diagram3D Interactions
PRD_001001 (RIT)
Query on PRD_001001		 C [auth B]RITONAVIRPeptide-like /  Inhibitor  Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Work: 0.201 
  • R-Value Observed: 0.201 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 61.06α = 90
b = 86.88β = 90
c = 46.62γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
R-AXISdata reduction
R-AXISdata scaling
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1998-02-04
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance
  • Version 1.3: 2013-02-27
    Changes: Other