3OUA

MDR769 HIV-1 protease complexed with p1/p6 hepta-peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Nine Crystal Structures Determine the Substrate Envelope of the MDR HIV-1 Protease.

Liu, Z.Wang, Y.Brunzelle, J.Kovari, I.A.Kovari, L.C.

(2011) Protein J. 30: 173-183

  • DOI: 10.1007/s10930-011-9316-2
  • Primary Citation of Related Structures:  3OTS, 3OTY, 3OU1, 3OU3, 3OU4, 3OUB, 3OUC, 3OUD

  • PubMed Abstract: 
  • Under drug selection pressure, emerging mutations render HIV-1 protease drug resistant, leading to the therapy failure in anti-HIV treatment. It is known that nine substrate cleavage site peptides bind to wild type (WT) HIV-1 protease in a conserved ...

    Under drug selection pressure, emerging mutations render HIV-1 protease drug resistant, leading to the therapy failure in anti-HIV treatment. It is known that nine substrate cleavage site peptides bind to wild type (WT) HIV-1 protease in a conserved pattern. However, how the multidrug-resistant (MDR) HIV-1 protease binds to the substrate cleavage site peptides is yet to be determined. MDR769 HIV-1 protease (resistant mutations at residues 10, 36, 46, 54, 62, 63, 71, 82, 84, and 90) was selected for present study to understand the binding to its natural substrates. MDR769 HIV-1 protease was co-crystallized with nine substrate cleavage site hepta-peptides. Crystallographic studies show that MDR769 HIV-1 protease has an expanded substrate envelope with wide open flaps. Furthermore, ligand binding energy calculations indicate weaker binding in MDR769 HIV-1 protease-substrate complexes. These results help in designing the next generation of HIV-1 protease inhibitors by targeting the MDR HIV-1 protease.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Wayne State University, School of Medicine, 540 E. Canfield Avenue, 4263 Scott Hall, Detroit, MI 48201, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HIV-1 protease
A, B
99Human immunodeficiency virus type 1 group M subtype BGene Names: gag-pol
EC: 3.4.23.16, 3.1.-.-, 2.7.7.49, 2.7.7.7, 3.1.26.13, 2.7.7.-, 3.1.13.2
Find proteins for P35963 (Human immunodeficiency virus type 1 group M subtype B)
Go to UniProtKB:  P35963
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
p1/p6 substrate peptide
P
7Human immunodeficiency virus type 1 group M subtype BGene Names: gag-pol
EC: 3.4.23.16, 3.1.-.-, 2.7.7.49, 2.7.7.7, 3.1.26.13, 2.7.7.-, 3.1.13.2
Find proteins for P35963 (Human immunodeficiency virus type 1 group M subtype B)
Go to UniProtKB:  P35963
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.187 
  • Space Group: P 41
Unit Cell:
Length (Å)Angle (°)
a = 45.504α = 90.00
b = 45.504β = 90.00
c = 102.096γ = 90.00
Software Package:
Software NamePurpose
AMoREphasing
CrystalCleardata scaling
CrystalCleardata reduction
HKL-2000data collection
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-03-30
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance