5N2F

Structure of PD-L1/small-molecule inhibitor complex

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.191 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history. 

Literature

Small-Molecule Inhibitors of the Programmed Cell Death-1/Programmed Death-Ligand 1 (PD-1/PD-L1) Interaction via Transiently Induced Protein States and Dimerization of PD-L1.

Guzik, K., Zak, K.M., Grudnik, P., Magiera, K., Musielak, B., Torner, R., Skalniak, L., Domling, A., Dubin, G., Holak, T.A.

(2017) J. Med. Chem. 60: 5857-5867

  • DOI: 10.1021/acs.jmedchem.7b00293
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • Blockade of the PD-1/PD-L1 immune checkpoint pathway with monoclonal antibodies has provided significant advances in cancer treatment. The antibody-based immunotherapies carry a number of disadvantages such as the high cost of the antibodies, their l ...

    Blockade of the PD-1/PD-L1 immune checkpoint pathway with monoclonal antibodies has provided significant advances in cancer treatment. The antibody-based immunotherapies carry a number of disadvantages such as the high cost of the antibodies, their limited half-life, and immunogenicity. Development of small-molecule PD-1/PD-L1 inhibitors that could overcome these drawbacks is slow because of the incomplete structural information for this pathway. The first chemical PD-1/PD-L1 inhibitors have been recently disclosed by Bristol-Myers Squibb. Here we present NMR and X-ray characterization for the two classes of these inhibitors. The X-ray structures of the PD-L1/inhibitor complexes reveal one inhibitor molecule located at the center of the PD-L1 homodimer, filling a deep hydrophobic channel-like pocket between two PD-L1 molecules. Derivatives of (2-methyl-3-biphenylyl)methanol exhibit the structures capped on one side of the channel, whereas the compounds based on [3-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-methylphenyl]methanol induce an enlarged interaction interface that results in the open "face-back" tunnel through the PD-L1 dimer.

    Organizational Affiliation: 

    Department of Organic Chemistry, Faculty of Chemistry, Jagiellonian University , Ingardena 3, 30-060 Krakow, Poland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Programmed cell death 1 ligand 1
A
126Homo sapiensMutation(s): 0 
Gene Names: CD274 (B7H1, PDCD1L1, PDCD1LG1, PDL1)
Find proteins for Q9NZQ7 (Homo sapiens)
Go to Gene View: CD274
Go to UniProtKB:  Q9NZQ7
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Programmed cell death 1 ligand 1
B
124Homo sapiensMutation(s): 0 
Gene Names: CD274 (B7H1, PDCD1L1, PDCD1LG1, PDL1)
Find proteins for Q9NZQ7 (Homo sapiens)
Go to Gene View: CD274
Go to UniProtKB:  Q9NZQ7
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
8HW
Query on 8HW
Download SDF File 
Download CCD File 
B
4-[[4-[[3-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-methyl-phenyl]methoxy]-2,5-bis(fluoranyl)phenyl]methylamino]-3-oxidanylidene-butanoic acid
C27 H25 F2 N O6
PRHIMIDCCNVQEI-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
8HWIC50: 80 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.191 
  • Space Group: P 2 21 21
Unit Cell:
Length (Å)Angle (°)
a = 51.815α = 90.00
b = 52.379β = 90.00
c = 111.526γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
PHASERphasing
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots


View more in-depth experimental data

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Science CenterPolandUMO-2012/06/A/ST5/00224
National Science CenterPolandUMO-2014/12/W/NZ1/00457
National Science CenterPolandUMO-2011/01/D/NZ1/01169
National Science CenterPolandUMO-2012/07/E/NZ1/01907
National Science CenterPolandUMO-2015/19/N/ST5/00347
National Science CenterPolandUMO-2016/20/T/NZ1/00519
National Science CenterPolandUMO-2015/19/D/NZ1/02009

Revision History 

  • Version 1.0: 2017-06-28
    Type: Initial release
  • Version 1.1: 2017-07-26
    Type: Database references