3I6O

Crystal structure of wild type HIV-1 protease with macrocyclic inhibitor GRL-0216A

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.17 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.159 
  • R-Value Observed: 0.161 

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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history. 


Literature

Design, Synthesis, Protein-Ligand X-ray Structure, and Biological Evaluation of a Series of Novel Macrocyclic Human Immunodeficiency Virus-1 Protease Inhibitors to Combat Drug Resistance.

Ghosh, A.K., Kulkarni, S., Anderson, D.D., Hong, L., Baldridge, A., Wang, Y.F., Chumanevich, A.A., Kovalevsky, A.Y., Tojo, Y., Amano, M., Koh, Y., Tang, J., Weber, I.T., Mitsuya, H.

(2009) J Med Chem 52: 7689-7705

  • DOI: 10.1021/jm900695w
  • Primary Citation of Related Structures:  
    3I6O, 3I7E

  • PubMed Abstract: 

    • The structure-based design, synthesis, and biological evaluation of a series of nonpeptidic macrocyclic HIV protease inhibitors are described. The inhibitors are designed to effectively fill in the hydrophobic pocket in the S1'-S2' subsites and retain all major hydrogen bonding interactions with the protein backbone similar to darunavir (1) or inhibitor 2 ...

    The structure-based design, synthesis, and biological evaluation of a series of nonpeptidic macrocyclic HIV protease inhibitors are described. The inhibitors are designed to effectively fill in the hydrophobic pocket in the S1'-S2' subsites and retain all major hydrogen bonding interactions with the protein backbone similar to darunavir (1) or inhibitor 2. The ring size, the effect of methyl substitution, and unsaturation within the macrocyclic ring structure were assessed. In general, cyclic inhibitors were significantly more potent than their acyclic homologues, saturated rings were less active than their unsaturated analogues and a preference for 10- and 13-membered macrocylic rings was revealed. The addition of methyl substituents resulted in a reduction of potency. Both inhibitors 14b and 14c exhibited marked enzyme inhibitory and antiviral activity, and they exerted potent activity against multidrug-resistant HIV-1 variants. Protein-ligand X-ray structures of inhibitors 2 and 14c provided critical molecular insights into the ligand-binding site interactions.

    Organizational Affiliation: 

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



Macromolecules
Find similar proteins by: 
(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
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GR6
Query on GR6
Download Ideal Coordinates CCD File 
Y [auth B](3R,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-yl {(1S,2R)-1-benzyl-2-hydroxy-3-[(7E)-13-methoxy-1,1-dioxido-3,4,5,6,9,10-hexahydro-2H-11,1,2-benzoxathiazacyclotridecin-2-yl]propyl}carbamate
C32 H42 N2 O9 S
ZQJBDIZBNGQJDT-JZAADHNPSA-N		 Ligand Interaction
IOD
Query on IOD
Download Ideal Coordinates CCD File 
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
N [auth B],
O [auth B],
P [auth B],
Q [auth B],
R [auth B],
S [auth B],
T [auth B],
U [auth B],
V [auth B],
W [auth B],
X [auth B]
IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M		 Ligand Interaction
GOL
Query on GOL
Download Ideal Coordinates CCD File 
L [auth A],
Z [auth B]		GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N		 Ligand Interaction
NA
Query on NA
Download Ideal Coordinates CCD File 
C [auth A],
M [auth B]		SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N		 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
GR6 PDBBind:  3I6O Ki: 0.05 (nM) from 1 assay(s)
Binding MOAD:  3I6O Ki: 0.05 (nM) from 1 assay(s)
BindingDB:  3I6O Ki: 0.06 (nM) from 1 assay(s)
EC50: 7 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.17 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.159 
  • R-Value Observed: 0.161 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 58.764α = 90
b = 86.328β = 90
c = 45.976γ = 90
Software Package:
Software NamePurpose
MAR345data collection
PHASERphasing
SHELXL-97refinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Ligand Structure Quality Assessment 


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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-09-29
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 1.2: 2017-11-01
    Changes: Refinement description
  • Version 1.3: 2021-10-13
    Changes: Database references, Derived calculations