2D82

Target Structure-Based Discovery of Small Molecules that Block Human p53 and CREB Binding Protein (CBP) Association


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 
  • Selection Criteria: structures with the least restraint violations 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Target structure-based discovery of small molecules that block human p53 and CREB binding protein association

SachchidanandResnick-Silverman, L.Yan, S.Mutjaba, S.Liu, W.J.Zeng, L.Manfredi, J.J.Zhou, M.M.

(2006) Chem Biol 13: 81-90

  • DOI: 10.1016/j.chembiol.2005.10.014
  • Primary Citation of Related Structures:  
    2D82

  • PubMed Abstract: 
  • Lysine acetylation of human tumor suppressor p53 in response to cellular stress signals is required for its function as a transcription factor that regulates cell cycle arrest, senescence, or apoptosis. Here, we report small molecules that block lysine 382-acetylated p53 association with the bromodomain of the coactivator CBP, an interaction essential for p53-induced transcription of the cell cycle inhibitor p21 in response to DNA damage ...

    Lysine acetylation of human tumor suppressor p53 in response to cellular stress signals is required for its function as a transcription factor that regulates cell cycle arrest, senescence, or apoptosis. Here, we report small molecules that block lysine 382-acetylated p53 association with the bromodomain of the coactivator CBP, an interaction essential for p53-induced transcription of the cell cycle inhibitor p21 in response to DNA damage. These chemicals were discovered in target structure-guided nuclear magnetic resonance spectroscopy screening of a focused chemical library constructed based on the structural knowledge of CBP bromodomain/p53-AcK382 binding. Structural characterization shows that these chemicals inhibit CBP/p53 association by binding to the acetyl-lysine binding site of the bromodomain. Cell-based functional assays demonstrate that the lead chemicals can modulate p53 stability and function in response to DNA damage.


    Organizational Affiliation

    Structural Biology Program, Department of Physiology and Biophysics, Mount Sinai School of Medicine, New York University, New York 10029, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CREB-binding proteinA121Homo sapiensMutation(s): 0 
Gene Names: CREBBPCBP
EC: 2.3.1.48 (PDB Primary Data), 2.3.1 (UniProt)
Find proteins for Q92793 (Homo sapiens)
Explore Q92793 
Go to UniProtKB:  Q92793
NIH Common Fund Data Resources
PHAROS:  Q92793
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TTR
Query on TTR

Download Ideal Coordinates CCD File 
B [auth A]9-ACETYL-2,3,4,9-TETRAHYDRO-1H-CARBAZOL-1-ONE
C14 H13 N O2
MIGJEXKBUJPKJF-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
TTRKd:  19600   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 
  • Selection Criteria: structures with the least restraint violations 
  • OLDERADO: 2D82 Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-04-04
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance