6R3K

Structure of human Programmed cell death 1 ligand 1 (PD-L1) with low molecular mass inhibitor

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.217 

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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history. 


Literature

Terphenyl-Based Small-Molecule Inhibitors of Programmed Cell Death-1/Programmed Death-Ligand 1 Protein-Protein Interaction.

Muszak, D., Surmiak, E., Plewka, J., Magiera-Mularz, K., Kocik-Krol, J., Musielak, B., Sala, D., Kitel, R., Stec, M., Weglarczyk, K., Siedlar, M., Domling, A., Skalniak, L., Holak, T.A.

(2021) J Med Chem 64: 11614-11636

  • DOI: https://doi.org/10.1021/acs.jmedchem.1c00957
  • Primary Citation of Related Structures:  
    6R3K, 7NLD

  • PubMed Abstract: 

    • We describe a new class of potent PD-L1/PD-1 inhibitors based on a terphenyl scaffold that is derived from the rigidified biphenyl-inspired structure. Using in silico docking, we designed and then experimentally demonstrated the effectiveness of the terphenyl-based scaffolds in inhibiting PD-1/PD-L1 complex formation using various biophysical and biochemical techniques ...

    We describe a new class of potent PD-L1/PD-1 inhibitors based on a terphenyl scaffold that is derived from the rigidified biphenyl-inspired structure. Using in silico docking, we designed and then experimentally demonstrated the effectiveness of the terphenyl-based scaffolds in inhibiting PD-1/PD-L1 complex formation using various biophysical and biochemical techniques. We also present a high-resolution structure of the complex of PD-L1 with one of our most potent inhibitors to identify key PD-L1/inhibitor interactions at the molecular level. In addition, we show the efficacy of our most potent inhibitors in activating the antitumor response using primary human immune cells from healthy donors.

    Organizational Affiliation: 

    Department of Organic Chemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Programmed cell death 1 ligand 1A, B, C, D128Homo sapiensMutation(s): 0 
Gene Names: CD274, B7H1, PDCD1L1, PDCD1LG1, PDL1
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NZQ7 (Homo sapiens)
Explore Q9NZQ7 
Go to UniProtKB:  Q9NZQ7
PHAROS:  Q9NZQ7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9NZQ7
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
JQT
Query on JQT
Download Ideal Coordinates CCD File 
F [auth B],
H [auth D]		(2~{S},4~{R})-1-[[5-chloranyl-2-[(3-cyanophenyl)methoxy]-4-[[3-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-methyl-phenyl]methoxy]phenyl]methyl]-4-oxidanyl-pyrrolidine-2-carboxylic acid
C36 H33 Cl N2 O7
QBXVXKRWOVBUDB-MVSFAKPFSA-N		 Ligand Interaction
EDO
Query on EDO
Download Ideal Coordinates CCD File 
E [auth A],
G [auth C]		1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N		 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
JQT BindingDB:  6R3K IC50: 1.85 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.217 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 40.527α = 90
b = 84.609β = 90
c = 164.116γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Polish National Science CentrePoland--
Polish National Science CentrePolandUMO-2012/06/A/ST5/00224
Polish National Science CentrePolandUMO-2014/12/W/NZ1/00457
Polish National Science CentrePolandUMO-2011/01/D/NZ1/01169
Polish National Science CentrePolandUMO-2012/07/E/NZ1/01907
Polish National Science CentrePoland2015/19/N/ST5/00347
Polish National Science CentrePolandUMO-2016/20/T/NZ1/00519
Polish National Science CentrePolandUMO-2015/19/D/NZ1/02009

Revision History  (Full details and data files)

  • Version 1.0: 2019-04-03
    Type: Initial release
  • Version 1.1: 2019-05-08
    Changes: Advisory, Data collection, Derived calculations
  • Version 1.2: 2021-08-25
    Changes: Database references