2WHH

HIV-1 protease tethered dimer Q-product complex along with nucleophilic water molecule


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.69 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.219 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Catalytic Water Co-Existing with a Product Peptide in the Active Site of HIV-1 Protease Revealed by X- Ray Structure Analysis.

Prashar, V.Bihani, S.Das, A.Ferrer, J.L.Hosur, M.V.

(2009) PLoS One 4: E7860

  • DOI: 10.1371/journal.pone.0007860
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • It is known that HIV-1 protease is an important target for design of antiviral compounds in the treatment of Acquired Immuno Deficiency Syndrome (AIDS). In this context, understanding the catalytic mechanism of the enzyme is of crucial importance as ...

    It is known that HIV-1 protease is an important target for design of antiviral compounds in the treatment of Acquired Immuno Deficiency Syndrome (AIDS). In this context, understanding the catalytic mechanism of the enzyme is of crucial importance as transition state structure directs inhibitor design. Most mechanistic proposals invoke nucleophilic attack on the scissile peptide bond by a water molecule. But such a water molecule coexisting with any ligand in the active site has not been found so far in the crystal structures.


    Organizational Affiliation

    Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
POL PROTEINA203Human immunodeficiency virus 1Mutation(s): 1 
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)
Find proteins for P04585 (Human immunodeficiency virus type 1 group M subtype B (isolate HXB2))
Explore P04585 
Go to UniProtKB:  P04585
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PPN
Query on PPN

Download CCD File 
A
PARA-NITROPHENYLALANINE
C9 H10 N2 O4
GTVVZTAFGPQSPC-QMMMGPOBSA-N
 Ligand Interaction
GLU
Query on GLU

Download CCD File 
A
GLUTAMIC ACID
C5 H9 N O4
WHUUTDBJXJRKMK-VKHMYHEASA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.69 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.219 
  • Space Group: P 61
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 62.54α = 90
b = 62.54β = 90
c = 81.99γ = 120
Software Package:
Software NamePurpose
CNSrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-12-01
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance