5L8T

Crystal Structure of BAZ2B bromodomain in complex with 3-amino-2-methylpyridine derivative 2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.189 

Starting Model: experimental
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This is version 1.2 of the entry. See complete history


Literature

Derivatives of 3-Amino-2-methylpyridine as BAZ2B Bromodomain Ligands: In Silico Discovery and in Crystallo Validation.

Marchand, J.R.Lolli, G.Caflisch, A.

(2016) J Med Chem 59: 9919-9927

  • DOI: https://doi.org/10.1021/acs.jmedchem.6b01258
  • Primary Citation of Related Structures:  
    5L8T, 5L8U, 5L96, 5L97, 5L98, 5L99

  • PubMed Abstract: 

    The 3-amino-2-methylpyridine derivative 1 was identified as ligand of the BAZ2B bromodomain by automatic docking of nearly 500 compounds, selected on the basis of previous fragment hits. Hit expansion by two in silico approaches, pharmacophore search followed by docking, and substructure search resulted in five additional ligands. The predicted binding mode of the six 3-amino-2-methylpyridine derivatives was validated by protein crystallography. A small displacement of residues 1894-1899 of the ZA loop is observed for two of the six ligands. In all structures, the pyridine head is involved in a water-mediated hydrogen bond with the side chain of the conserved Tyr1901 while the 3-amino linker acts as hydrogen bond donor for the backbone carbonyl of Pro1888. Heterogeneous orientations are observed for the tail groups (i.e., the 3-amino substituents). The sulfonyl group in the tail of compounds 1 and 2 is involved in a hydrogen bond with the backbone amide of Asn1894.


  • Organizational Affiliation

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


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Bromodomain adjacent to zinc finger domain protein 2B116Homo sapiensMutation(s): 0 
Gene Names: BAZ2BKIAA1476
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UIF8 (Homo sapiens)
Explore Q9UIF8 
Go to UniProtKB:  Q9UIF8
PHAROS:  Q9UIF8
GTEx:  ENSG00000123636 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9UIF8
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
6RR
Query on 6RR

Download Ideal Coordinates CCD File 
B [auth A]~{N}-[(3~{R})-1,1-bis(oxidanylidene)thian-3-yl]-2-methyl-pyridin-3-amine
C11 H16 N2 O2 S
UTGFIRRMSACIPX-SNVBAGLBSA-N
Binding Affinity Annotations 
IDSourceBinding Affinity
6RR BindingDB:  5L8T IC50: 2.79e+5 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.189 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 80.827α = 90
b = 96.382β = 90
c = 57.663γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
PHASERphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
Aimlessdata scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Swiss National Science FoundationSwitzerland--
Swiss Cancer LeagueSwitzerland--

Revision History  (Full details and data files)

  • Version 1.0: 2016-10-26
    Type: Initial release
  • Version 1.1: 2016-12-21
    Changes: Database references
  • Version 1.2: 2024-01-10
    Changes: Data collection, Database references, Refinement description