6B3W

Structure of Hs/AcPRC2 in complex with 5,8-dichloro-7-(3,5-dimethyl-1,2-oxazol-4-yl)-2-[(4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl]-3,4-dihydroisoquinolin-1(2H)-one


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.05 Å
  • R-Value Free: 0.282 
  • R-Value Work: 0.224 
  • R-Value Observed: 0.227 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Optimization of Orally Bioavailable Enhancer of Zeste Homolog 2 (EZH2) Inhibitors Using Ligand and Property-Based Design Strategies: Identification of Development Candidate (R)-5,8-Dichloro-7-(methoxy(oxetan-3-yl)methyl)-2-((4-methoxy-6-methyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-3,4-dihydroisoquinolin-1(2H)-one (PF-06821497).

Kung, P.P.Bingham, P.Brooun, A.Collins, M.Deng, Y.L.Dinh, D.Fan, C.Gajiwala, K.S.Grantner, R.Gukasyan, H.J.Hu, W.Huang, B.Kania, R.Kephart, S.E.Krivacic, C.Kumpf, R.A.Khamphavong, P.Kraus, M.Liu, W.Maegley, K.A.Nguyen, L.Ren, S.Richter, D.Rollins, R.A.Sach, N.Sharma, S.Sherrill, J.Spangler, J.Stewart, A.E.Sutton, S.Uryu, S.Verhelle, D.Wang, H.Wang, S.Wythes, M.Xin, S.Yamazaki, S.Zhu, H.Zhu, J.Zehnder, L.Edwards, M.

(2018) J Med Chem 61: 650-665

  • DOI: 10.1021/acs.jmedchem.7b01375
  • Primary Citation of Related Structures:  
    4W2R, 6B3W

  • PubMed Abstract: 
  • A new series of lactam-derived EZH2 inhibitors was designed via ligand-based and physicochemical-property-based strategies to address metabolic stability and thermodynamic solubility issues associated with previous lead compound 1. The new inhibitors incorporated an sp 3 hybridized carbon atom at the 7-position of the lactam moiety present in lead compound 1 as a replacement for a dimethylisoxazole group ...

    A new series of lactam-derived EZH2 inhibitors was designed via ligand-based and physicochemical-property-based strategies to address metabolic stability and thermodynamic solubility issues associated with previous lead compound 1. The new inhibitors incorporated an sp 3 hybridized carbon atom at the 7-position of the lactam moiety present in lead compound 1 as a replacement for a dimethylisoxazole group. This transformation enabled optimization of the physicochemical properties and potency compared to compound 1. Analysis of relationships between calculated log D (clogD) values and in vitro metabolic stability and permeability parameters identified a clogD range that afforded an increased probability of achieving favorable ADME data in a single molecule. Compound 23a exhibited the best overlap of potency and pharmaceutical properties as well as robust tumor growth inhibition in vivo and was therefore advanced as a development candidate (PF-06821497). A crystal structure of 23a in complex with the three-protein PRC2 complex enabled understanding of the key structural features required for optimal binding.


    Organizational Affiliation

    WuXi AppTec , 288 Fute Zhong Road, Waigaoqiao Free Trade Zone, Shanghai 200131, China.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Enhancer of zeste 2 polycomb repressive complex 2 subunit,Enhancer of zeste 2 polycomb repressive complex 2 subunitA, B643Anolis carolinensisMutation(s): 0 
Gene Names: EZH2
EC: 2.1.1.356
UniProt
Find proteins for G1KPH4 (Anolis carolinensis)
Explore G1KPH4 
Go to UniProtKB:  G1KPH4
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Polycomb protein EEDC [auth E], D [auth F]362Homo sapiensMutation(s): 0 
Gene Names: EED
UniProt & NIH Common Fund Data Resources
Find proteins for O75530 (Homo sapiens)
Explore O75530 
Go to UniProtKB:  O75530
PHAROS:  O75530
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Polycomb protein SUZ12E [auth S], F [auth T]191Homo sapiensMutation(s): 0 
Gene Names: SUZ12CHET9JJAZ1KIAA0160
UniProt & NIH Common Fund Data Resources
Find proteins for Q15022 (Homo sapiens)
Explore Q15022 
Go to UniProtKB:  Q15022
PHAROS:  Q15022
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CJG (Subject of Investigation/LOI)
Query on CJG

Download Ideal Coordinates CCD File 
N [auth A], V [auth B]5,8-dichloro-7-(3,5-dimethyl-1,2-oxazol-4-yl)-2-[(4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl]-3,4-dihydroisoquinolin-1(2H)-one
C22 H21 Cl2 N3 O3
PDKDOPJQPKXNCT-UHFFFAOYSA-N
 Ligand Interaction
ZN
Query on ZN

Download Ideal Coordinates CCD File 
G [auth A] , H [auth A] , I [auth A] , J [auth A] , K [auth A] , L [auth A] , M [auth A] , O [auth B] , 
G [auth A], H [auth A], I [auth A], J [auth A], K [auth A], L [auth A], M [auth A], O [auth B], P [auth B], Q [auth B], R [auth B], S [auth B], T [auth B], U [auth B]
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
CJG BindingDB:  6B3W Ki: 0.7 (nM) from 1 assay(s)
IC50: min: 15, max: 17 (nM) from 2 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.05 Å
  • R-Value Free: 0.282 
  • R-Value Work: 0.224 
  • R-Value Observed: 0.227 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 70.778α = 90
b = 115.178β = 102.58
c = 150.967γ = 90
Software Package:
Software NamePurpose
CNSrefinement
Aimlessdata scaling
CNXphasing

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-12-27
    Type: Initial release
  • Version 1.1: 2018-02-21
    Changes: Database references