1TW7

Wide Open 1.3A Structure of a Multi-drug Resistant HIV-1 Protease Represents a Novel Drug Target


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.30 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.142 
  • R-Value Observed: 0.142 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Wide Open 1.3A Structure of a Multi-drug Resistant HIV-1 Protease Represents a Novel Drug Target

Martin, P.Vickrey, J.F.Proteasa, G.Jimenez, Y.L.Wawrzak, Z.Winters, M.A.Merigan, T.C.Kovari, L.C.

(2005) Structure 13: 1887-1895

  • DOI: 10.1016/j.str.2005.11.005
  • Primary Citation of Related Structures:  
    1TW7

  • PubMed Abstract: 
  • This report examines structural changes in a highly mutated, clinical multidrug-resistant HIV-1 protease, and the crystal structure has been solved to 1.3 A resolution in the absence of any inhibitor. This protease variant contains codon mutations at ...

    This report examines structural changes in a highly mutated, clinical multidrug-resistant HIV-1 protease, and the crystal structure has been solved to 1.3 A resolution in the absence of any inhibitor. This protease variant contains codon mutations at positions 10, 36, 46, 54, 62, 63, 71, 82, 84, and 90 that confer resistance to protease inhibitors. Major differences between the wild-type and the variant include a structural change initiated by the M36V mutation and amplified by additional mutations in the flaps of the protease, resulting in a "wide-open" structure that represents an opening that is 8 A wider than the "open" structure of the wild-type protease. A second structural change is triggered by the L90M mutation that results in reshaping the 23-32 segment. A third key structural change of the protease is due to the mutations from longer to shorter amino acid side chains at positions 82 and 84.


    Related Citations: 
    • Crystal structures of a Multidrug-Resistant human immunodeficiency virus type 1 Protease Reveal an Expanded Active-Site Cavity
      Logsdon, B.C., Vickrey, J.F., Martin, P., Proteasa, G., Kopeke, J.I., Terlecky, S.R., Wawrzak, Z., Winters, M.A., Merigan, T.C., Kovari, L.C.
      (2004) J Virol 78: 3123
    • HIV-1 Protease variants from 100-fold drug resistant clinical isolates: expression, purification, and crystallization.
      Vickrey, J.F., Logsdon, B.C., Proteasa, G., Palmer, S., Winters, M.A., Merigan, T.C., Kovari, L.C.
      (2003) Protein Expr Purif 28: 165

    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
proteaseAB99Human immunodeficiency virus 1Mutation(s): 11 
Gene Names: HIV-1pol
EC: 3.4.23.16
Find proteins for Q5RTL1 (Human immunodeficiency virus 1)
Explore Q5RTL1 
Go to UniProtKB:  Q5RTL1
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download CCD File 
A, B
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.30 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.142 
  • R-Value Observed: 0.142 
  • Space Group: P 41
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 45.043α = 90
b = 45.043β = 90
c = 105.744γ = 90
Software Package:
Software NamePurpose
Quantumdata collection
HKL-2000data reduction
CCP4model building
SHELXL-97refinement
HKL-2000data scaling
CCP4phasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-07-19
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance