3ST5

Crystal structure of wild-type HIV-1 protease with C3-Substituted Hexahydrocyclopentafuranyl Urethane as P2-Ligand, GRL-0489A

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.45 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.157 
  • R-Value Observed: 0.157 

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Literature

Design of HIV-1 Protease Inhibitors with C3-Substituted Hexahydrocyclopentafuranyl Urethanes as P2-Ligands: Synthesis, Biological Evaluation, and Protein-Ligand X-ray Crystal Structure.

Ghosh, A.K., Chapsal, B.D., Parham, G.L., Steffey, M., Agniswamy, J., Wang, Y.F., Amano, M., Weber, I.T., Mitsuya, H.

(2011) J Med Chem 54: 5890-5901

  • DOI: 10.1021/jm200649p
  • Primary Citation of Related Structures:  
    3ST5

  • PubMed Abstract: 

    • We report the design, synthesis, biological evaluation, and the X-ray crystal structure of a novel inhibitor bound to the HIV-1 protease. Various C3-functionalized cyclopentanyltetrahydrofurans (Cp-THF) were designed to interact with the flap Gly48 carbonyl or amide NH in the S2-subsite of the HIV-1 protease ...

    We report the design, synthesis, biological evaluation, and the X-ray crystal structure of a novel inhibitor bound to the HIV-1 protease. Various C3-functionalized cyclopentanyltetrahydrofurans (Cp-THF) were designed to interact with the flap Gly48 carbonyl or amide NH in the S2-subsite of the HIV-1 protease. We investigated the potential of those functionalized ligands in combination with hydroxyethylsulfonamide isosteres. Inhibitor 26 containing a 3-(R)-hydroxyl group on the Cp-THF core displayed the most potent enzyme inhibitory and antiviral activity. Our studies revealed a preference for the 3-(R)-configuration over the corresponding 3-(S)-derivative. Inhibitor 26 exhibited potent activity against a panel of multidrug-resistant HIV-1 variants. A high resolution X-ray structure of 26-bound HIV-1 protease revealed important molecular insight into the ligand-binding site interactions.

    Organizational Affiliation: 

    Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA. akghosh@purdue.edu



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ProteaseA, B99Human immunodeficiency virus type 1 (BRU ISOLATE)Mutation(s): 5 
Gene Names: gag-pol
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)
UniProt
Find proteins for P03367 (Human immunodeficiency virus type 1 group M subtype B (isolate BRU/LAI))
Explore P03367 
Go to UniProtKB:  P03367
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP03367
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
G89
Query on G89
Download Ideal Coordinates CCD File 
D [auth B](3R,3aR,5R,6aR)-3-hydroxyhexahydro-2H-cyclopenta[b]furan-5-yl [(2S,3R)-3-hydroxy-4-{[(4-methoxyphenyl)sulfonyl](2-methylpropyl)amino}-1-phenylbutan-2-yl]carbamate
C29 H40 N2 O8 S
LJPOEDMTSRUIGG-RVSUYJHDSA-N		 Ligand Interaction
CL
Query on CL
Download Ideal Coordinates CCD File 
C [auth A],
E [auth B]		CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M		 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
G89 PDBBind:  3ST5 Ki: 5.00e-3 (nM) from 1 assay(s)
Binding MOAD:  3ST5 Ki: 5.00e-3 (nM) from 1 assay(s)
BindingDB:  3ST5 Ki: 5.00e-3 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.45 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.157 
  • R-Value Observed: 0.157 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 58.39α = 90
b = 86.552β = 90
c = 45.846γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHASESphasing
SHELXL-97refinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-08-17
    Type: Initial release
  • Version 1.1: 2011-08-31
    Changes: Database references
  • Version 1.2: 2012-12-12
    Changes: Other