4BHW

Structural basis for autoinhibition of the acetyltransferase activity of p300


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.799 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.208 

wwPDB Validation 3D Report Full Report


This is version 2.0 of the entry. See complete history

Literature

Structure of the P300 Catalytic Core and Implications for Chromatin Targeting and Hat Regulation

Delvecchio, M.Gaucher, J.Aguilar-Gurrieri, C.Ortega, E.Panne, D.

(2013) Nat.Struct.Mol.Biol. 20: 1040

  • DOI: 10.1038/nsmb.2642

  • PubMed Abstract: 
  • CBP and p300 are histone acetyltransferases (HATs) that associate with and acetylate transcriptional regulators and chromatin. Mutations in their catalytic 'cores' are linked to genetic disorders, including cancer. Here we present the 2.8-Å crystal s ...

    CBP and p300 are histone acetyltransferases (HATs) that associate with and acetylate transcriptional regulators and chromatin. Mutations in their catalytic 'cores' are linked to genetic disorders, including cancer. Here we present the 2.8-Å crystal structure of the catalytic core of human p300 containing its bromodomain, CH2 region and HAT domain. The structure reveals that the CH2 region contains a discontinuous PHD domain interrupted by a RING domain. The bromodomain, PHD, RING and HAT domains adopt an assembled configuration with the RING domain positioned over the HAT substrate-binding pocket. Disease mutations that disrupt RING attachment led to upregulation of HAT activity, thus revealing an inhibitory role for this domain. The structure provides a starting point for understanding how chromatin-substrate targeting and HAT regulation are coupled and why mutations in the p300 core lead to dysregulation.


    Organizational Affiliation

    1] European Molecular Biology Laboratory, Grenoble, France. [2] Unit for Virus Host-Cell Interactions, University of Grenoble Alpes, European Molecular Biology Laboratory-Centre National de la Recherche Scientifique, Grenoble, France. [3].




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HISTONE ACETYLTRANSFERASE P300
A, B
578Homo sapiensMutation(s): 1 
Gene Names: EP300 (P300)
EC: 2.3.1.48
Find proteins for Q09472 (Homo sapiens)
Go to Gene View: EP300
Go to UniProtKB:  Q09472
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
01K
Query on 01K

Download SDF File 
Download CCD File 
A, B
[(2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-4-hydroxy-3-(phosphonooxy)tetrahydrofuran-2-yl]methyl (3R,20R)-20-carbamoyl-3-hydroxy-2,2-dimethyl-4,8,14,22-tetraoxo-12-thia-5,9,15,21-tetraazatricos-1-yl dihydrogen diphosphate
Lysine-COENZYME A derivative
C31 H53 N10 O19 P3 S
YGZKIOPJGFQDSR-VLHHDIFDSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.799 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.208 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 153.051α = 90.00
b = 92.894β = 98.43
c = 123.309γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
PHENIXphasing
XDSdata scaling
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-08-14
    Type: Initial release
  • Version 1.1: 2013-08-21
    Type: Database references
  • Version 1.2: 2013-09-18
    Type: Database references
  • Version 2.0: 2019-04-03
    Type: Atomic model, Data collection, Other, Source and taxonomy