1LZQ

Crystal structure of the complex of mutant HIV-1 protease (A71V, V82T, I84V) with an ethylenamine peptidomimetic inhibitor BOC-PHE-PSI[CH2CH2NH]-PHE-GLU-PHE-NH2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.203 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

An Ethylenamine Inhibitor Binds Tightly to Both Wild Type and Mutant HIV-1 Proteases. Structure and Energy Study

Skalova, T.Hasek, J.Dohnalek, J.Petrokova, H.Buchtelova, E.Duskova, J.Soucek, M.Majer, P.Uhlikova, T.Konvalinka, J.

(2003) J.Med.Chem. 46: 1636-1644

  • DOI: 10.1021/jm021079g

  • PubMed Abstract: 
  • An X-ray structure (resolution 2.2 A) of mutant HIV-1 protease (A71V, V82T, I84V) complexed with a newly developed peptidomimetic inhibitor with an ethylenamine isostere Boc-Phe-Psi[CH(2)CH(2)NH]-Phe-Glu-Phe-NH(2), denoted as OE, is described and com ...

    An X-ray structure (resolution 2.2 A) of mutant HIV-1 protease (A71V, V82T, I84V) complexed with a newly developed peptidomimetic inhibitor with an ethylenamine isostere Boc-Phe-Psi[CH(2)CH(2)NH]-Phe-Glu-Phe-NH(2), denoted as OE, is described and compared with the complex of wild-type HIV-1 protease with the same inhibitor (resolution 2.5 A). OE shows tight binding to the wild type (K(i) = 1.5 nM) as well as mutant (K(i) = 4.1 nM) protease. The hydrogen bonds formed, in the case of hydroxyethylamine inhibitors, by a hydroxyl group are, in the case of OE inhibitors, replaced by a bifurcated hydrogen bond from the isosteric NH group to both catalytic aspartates Asp 25 and Asp 125. The binding modes of OE inhibitor to the wild type and mutant protease are similar. However, in the mutant protease, weaker van der Waals interactions of the mutated residues Val 84 and Val 184 with OE were found. This lack of interaction energy is compensated by a new aromatic hydrogen bond between the phenyl ring of the inhibitor in position P1 and the mutated residue Thr 182. Energy analysis based on molecular mechanics has been performed to distinguish between the static and dynamic backgrounds of disorder observed at the mutation sites Thr 82, Val 84, Thr 182, and Val 184.


    Organizational Affiliation

    Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Praha 6, Czech Republic. skalova@imc.cas.cz




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEASE RETROPEPSIN
A, B
99Human immunodeficiency virus type 1 group M subtype BMutation(s): 3 
Gene Names: gag-pol
Find proteins for P03367 (Human immunodeficiency virus type 1 group M subtype B)
Go to UniProtKB:  P03367
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
0ZQ
Query on 0ZQ

Download SDF File 
Download CCD File 
A
N-{(3S)-3-[(tert-butoxycarbonyl)amino]-4-phenylbutyl}-L-phenylalanyl-L-alpha-glutamyl-L-phenylalaninamide
C38 H49 N5 O7
CBWQRQVEXJTNOT-ZLESDFJESA-N
 Ligand Interaction
BME
Query on BME

Download SDF File 
Download CCD File 
A
BETA-MERCAPTOETHANOL
C2 H6 O S
DGVVWUTYPXICAM-UHFFFAOYSA-N
 Ligand Interaction
Biologically Interesting Molecules 1 Unique
IDChainsNameType/Class2D Diagram3D Interactions
PRD_000383 (0ZQ)
Query on PRD_000383
ABOC-PHE-PSI[CH2CH2NH]-PHE-GLU-PHE-NH2Peptide-like / Inhibitor

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External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
0ZQKi: 1.5 - 4.1 nM (96) BINDINGDB
0ZQKi: 4.1 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.203 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 62.680α = 90.00
b = 62.680β = 90.00
c = 83.309γ = 120.00
Software Package:
Software NamePurpose
CNSrefinement
AMoREphasing
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-04-29
    Type: Initial release
  • Version 1.1: 2007-10-16
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Atomic model, Database references, Derived calculations, Non-polymer description, Source and taxonomy, Structure summary, Version format compliance
  • Version 1.3: 2012-12-12
    Type: Other