5OWW

Crystal structure of human BRD4(1) bromodomain in complex with UT22B


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.184 

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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Chemical Space Expansion of Bromodomain Ligands Guided by in Silico Virtual Couplings (AutoCouple).

Batiste, L.Unzue, A.Dolbois, A.Hassler, F.Wang, X.Deerain, N.Zhu, J.Spiliotopoulos, D.Nevado, C.Caflisch, A.

(2018) ACS Cent Sci 4: 180-188

  • DOI: 10.1021/acscentsci.7b00401
  • Primary Citation of Related Structures:  
    5OVB, 5OWW, 5OWM, 5NLK

  • PubMed Abstract: 
  • Expanding the chemical space and simultaneously ensuring synthetic accessibility is of upmost importance, not only for the discovery of effective binders for novel protein classes but, more importantly, for the development of compounds against hard-to-drug proteins ...

    Expanding the chemical space and simultaneously ensuring synthetic accessibility is of upmost importance, not only for the discovery of effective binders for novel protein classes but, more importantly, for the development of compounds against hard-to-drug proteins. Here, we present AutoCouple, a de novo approach to computational ligand design focused on the diversity-oriented generation of chemical entities via virtual couplings. In a benchmark application, chemically diverse compounds with low-nanomolar potency for the CBP bromodomain and high selectivity against the BRD4(1) bromodomain were achieved by the synthesis of about 50 derivatives of the original fragment. The binding mode was confirmed by X-ray crystallography, target engagement in cells was demonstrated, and antiproliferative activity was showcased in three cancer cell lines. These results reveal AutoCouple as a useful in silico coupling method to expand the chemical space in hit optimization campaigns resulting in potent, selective, and cell permeable bromodomain ligands.


    Organizational Affiliation

    Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Bromodomain-containing protein 4A, B, C, D127Homo sapiensMutation(s): 0 
Gene Names: BRD4HUNK1
UniProt & NIH Common Fund Data Resources
Find proteins for O60885 (Homo sapiens)
Explore O60885 
Go to UniProtKB:  O60885
PHAROS:  O60885
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
B0Q (Subject of Investigation/LOI)
Query on B0Q

Download Ideal Coordinates CCD File 
E [auth A], F [auth B], G [auth C], H [auth D]~{N}-(3-methylbenzotriazol-5-yl)-1-(phenylmethyl)imidazole-2-carboxamide
C18 H16 N6 O
KXKQPHQDIFTLEB-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.184 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 59.877α = 90
b = 41.924β = 92.03
c = 109.416γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment  



Entry History 

Deposition Data

  • Deposited Date: 2017-09-04 
  • Released Date: 2018-10-10 
  • Deposition Author(s): Zhu, J., Caflisch, A.

Revision History  (Full details and data files)

  • Version 1.0: 2018-10-10
    Type: Initial release
  • Version 1.1: 2019-10-23
    Changes: Data collection, Database references, Structure summary