Complex structure of PCAF bromodomain with small chemical ligand NP2

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 1.4 of the entry. See complete history


Selective small molecules blocking HIV-1 Tat and coactivator PCAF association

Zeng, L.Li, J.Muller, M.Yan, S.Mujtaba, S.Pan, C.Wang, Z.Zhou, M.M.

(2005) J Am Chem Soc 127: 2376-2377

  • DOI: https://doi.org/10.1021/ja044885g
  • Primary Citation of Related Structures:  
    1WUG, 1WUM

  • PubMed Abstract: 

    Development of drug resistance from mutations in the targeted viral proteins leads to continuation of viral production by chronically infected cells, contributing to HIV-mediated immune dysfunction. Targeting a host cell protein essential for viral reproduction, rather than a viral protein, may minimize the viral drug resistance problem as observed with HIV protease inhibitors. We report here the development of a novel class of N1-aryl-propane-1,3-diamine compounds using a structure-based approach that selectively inhibit the activity of the bromodomain of the human transcriptional co-activator PCAF, of which association with the HIV trans-activator Tat is essential for transcription and replication of the integrated HIV provirus.

  • Organizational Affiliation

    Structural Biology Program, Department of Physiology and Biophysics, Mount Sinai School of Medicine, New York University, One Gustave L. Levy Place, New York, New York 10029-6574, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Histone acetyltransferase PCAF118Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q92831 (Homo sapiens)
Explore Q92831 
Go to UniProtKB:  Q92831
GTEx:  ENSG00000114166 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ92831
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on NP2

Download Ideal Coordinates CCD File 
C9 H13 N3 O2
Binding Affinity Annotations 
IDSourceBinding Affinity
NP2 PDBBind:  1WUM IC50: 5100 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

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

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-08-16
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-03-02
    Changes: Database references, Derived calculations
  • Version 1.4: 2024-05-29
    Changes: Data collection