5A7S

Crystal structure of human JMJD2A in complex with compound 44


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.171 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Docking and Linking of Fragments to Discover Jumonji Histone Demethylase Inhibitors.

Korczynska, M.Le, D.D.Younger, N.Gregori-Puigjane, E.Tumber, A.Krojer, T.Velupillai, S.Gileadi, C.Nowak, R.P.Iwasa, E.Pollock, S.B.Ortiz Torres, I.Oppermann, U.Shoichet, B.K.Fujimori, D.G.

(2016) J.Med.Chem. 59: 1580

  • DOI: 10.1021/acs.jmedchem.5b01527
  • Primary Citation of Related Structures:  5A7N, 5A7O, 5A7P, 5A7Q, 5A7W, 5A80

  • PubMed Abstract: 
  • Development of tool molecules that inhibit Jumonji demethylases allows for the investigation of cancer-associated transcription. While scaffolds such as 2,4-pyridinedicarboxylic acid (2,4-PDCA) are potent inhibitors, they exhibit limited selectivity. ...

    Development of tool molecules that inhibit Jumonji demethylases allows for the investigation of cancer-associated transcription. While scaffolds such as 2,4-pyridinedicarboxylic acid (2,4-PDCA) are potent inhibitors, they exhibit limited selectivity. To discover new inhibitors for the KDM4 demethylases, enzymes overexpressed in several cancers, we docked a library of 600,000 fragments into the high-resolution structure of KDM4A. Among the most interesting chemotypes were the 5-aminosalicylates, which docked in two distinct but overlapping orientations. Docking poses informed the design of covalently linked fragment compounds, which were further derivatized. This combined approach improved affinity by ∼ 3 log-orders to yield compound 35 (Ki = 43 nM). Several hybrid inhibitors were selective for KDM4C over the related enzymes FIH, KDM2A, and KDM6B while lacking selectivity against the KDM3 and KDM5 subfamilies. Cocrystal structures corroborated the docking predictions. This study extends the use of structure-based docking from fragment discovery to fragment linking optimization, yielding novel KDM4 inhibitors.


    Organizational Affiliation

    Structural Genomics Consortium, University of Oxford , Oxford OX3 7DQ, U.K.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
LYSINE-SPECIFIC DEMETHYLASE 4A
A, B
381Homo sapiensGene Names: KDM4A (JHDM3A, JMJD2, JMJD2A, KIAA0677)
EC: 1.14.11.-
Find proteins for O75164 (Homo sapiens)
Go to Gene View: KDM4A
Go to UniProtKB:  O75164
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
S2X
Query on S2X

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A, B
2-(5-acetamido-2-oxidanyl-phenyl)pyridine-4-carboxylic acid
C14 H12 N2 O4
KWHVUGFDWSYWJF-UHFFFAOYSA-N
 Ligand Interaction
MN
Query on MN

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Download CCD File 
A, B
MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N
 Ligand Interaction
ZN
Query on ZN

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Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

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Download CCD File 
A, B
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
DMS
Query on DMS

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Download CCD File 
A, B
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.171 
  • Space Group: P 2 21 21
Unit Cell:
Length (Å)Angle (°)
a = 57.070α = 90.00
b = 100.760β = 90.00
c = 149.000γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
SCALAdata scaling
PHENIXrefinement
PHENIXphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Revision History 

  • Version 1.0: 2016-01-13
    Type: Initial release
  • Version 1.1: 2016-03-09
    Type: Database references