3ZSY

Small molecule inhibitors of the LEDGF site of HIV type 1 integrase identified by fragment screening and structure based drug design


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.183 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Small Molecule Inhibitors of the Ledgf Site of Human Immunodeficiency Virus Integrase Identified by Fragment Screening and Structure Based Design.

Peat, T.S.Rhodes, D.I.Vandegraaff, N.Le, G.Smith, J.A.Clark, L.J.Jones, E.D.Coates, J.A.V.Thienthong, N.Newman, J.Dolezal, O.Mulder, R.Ryan, J.H.Savage, G.P.Francis, C.L.Deadman, J.J.

(2012) PLoS One 7: 40147

  • DOI: https://doi.org/10.1371/journal.pone.0040147
  • Primary Citation of Related Structures:  
    3ZCM, 3ZSO, 3ZSQ, 3ZSR, 3ZSV, 3ZSW, 3ZSX, 3ZSY, 3ZSZ, 3ZT0, 3ZT1, 3ZT2, 3ZT3, 3ZT4

  • PubMed Abstract: 

    A fragment-based screen against human immunodeficiency virus type 1 (HIV) integrase led to a number of compounds that bound to the lens epithelium derived growth factor (LEDGF) binding site of the integrase catalytic core domain. We determined the crystallographic structures of complexes of the HIV integrase catalytic core domain for 10 of these compounds and quantitated the binding by surface plasmon resonance. We demonstrate that the compounds inhibit the interaction of LEDGF with HIV integrase in a proximity AlphaScreen assay, an assay for the LEDGF enhancement of HIV integrase strand transfer and in a cell based assay. The compounds identified represent a potential framework for the development of a new series of HIV integrase inhibitors that do not bind to the catalytic site of the enzyme.


  • Organizational Affiliation

    CSIRO Materials, Science and Engineering, Parkville, Victoria, Australia. tom.peat@csiro.au


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
INTEGRASE
A, B
167Human immunodeficiency virusMutation(s): 3 
EC: 2.7.7
UniProt
Find proteins for P12497 (Human immunodeficiency virus type 1 group M subtype B (isolate NY5))
Explore P12497 
Go to UniProtKB:  P12497
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP12497
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
OM3
Query on OM3

Download Ideal Coordinates CCD File 
G [auth A],
L [auth B]
(R)-(4-CARBOXY-1,3-BENZODIOXOL-5-YL)METHYL-[[2-(CYCLOHEXYLMETHYLCARBAMOYL)PHENYL]METHYL]-METHYL-AZANIUM
C25 H31 N2 O5
STKSSLWZOAVRQS-UHFFFAOYSA-O
SO4
Query on SO4

Download Ideal Coordinates CCD File 
C [auth A]
D [auth A]
E [auth A]
H [auth B]
I [auth B]
C [auth A],
D [auth A],
E [auth A],
H [auth B],
I [auth B],
J [auth B]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
ACT
Query on ACT

Download Ideal Coordinates CCD File 
F [auth A],
K [auth B]
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
Binding Affinity Annotations 
IDSourceBinding Affinity
OM3 PDBBind:  3ZSY Kd: 5.95e+5 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.183 
  • Space Group: P 31
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 70.692α = 90
b = 70.692β = 90
c = 66.889γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2012-07-11
    Type: Initial release
  • Version 1.1: 2012-08-01
    Changes: Database references, Structure summary
  • Version 1.2: 2023-12-20
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description